Midea MAD22C3WMT Dehumidifier User Manual

June 14, 2024
Midea

Midea MAD22C3WMT Dehumidifier

Warning notices: Before using this product, please read this manual carefully and keep it for future reference. The design and specifications are subject to change without prior notice for product improvement. Consult with your dealer or manufacturer for details.

Free 3-month extension of the original limited warranty period! Simply text a picture of your proof of purchase to 1-844-224-1614 The warranty extension is for the three months immediately following the completion of the product’s original warranty period. Individuals do not need to register the product to get all the rights and remedies of registered owners under the original limited warranty.

Read This Manual
Inside you will find many helpful hints on how to use and maintain your dehumidifier properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your dehumidifier. You’ll find many answers to common problems in the troubleshooting tips – you should be able to fix most of them quickly before calling the service. These instructions may not cover every possible condition of use, so common sense and care for safety is required when installing, operating and maintaining this product.

CAUTION

  • Contact an authorized service technician for repair or maintenance of this unit.
  • The unit is not designed to be used by young children or people with reduced physical, sensory or mental capabilities without supervision.
  • Young children should be supervised to ensure that they do not play with the unit.
  • If the power cord needs to be replaced, please contact our consumer service or an authorized technician.
  • Electrical installation, if needed, must be performed in accordance with national regulation standards by qualified personnel only.

Safety Precautions

To prevent injury to the user or personal and property damage, these instructions must be followed. Incorrect operation due to ignoring of instructions may cause harm or damage. The level of risk is shown by the following indications.

WARNING
This symbol indicates the possibility of death or serious injury.

CAUTION
This symbol indicates the possibility of injury or damage to property.

WARNINGS

  • Plug in the power plug properly. Otherwise, it may cause electric shock or fire due to excess heat generation.
  • Do not modify the power cord length or share the outlet with other appliances. It may cause electric shock or fire due to overheating.
  • Always ensure effective grounding. Incorrect grounding may cause electric shock.
  • Unplug the unit if strange sounds, smells, or smoke come from it. A damaged product may cause fire and electric shock.
  • Ventilate the room before operating the unit if there is a gas leak from other appliances.
  • Do not operate or stop the unit by inserting or pulling out the power plug. It may cause electric shock.
  • Do not allow water to enter into electric parts. It may cause failure or electric shock.
  • Do not use the power outlet if it is loose or damaged. It may cause fire and electric shock.
  • Do not use or keep the power cord close to heating appliances or heat sources such as fireplaces. It may cause fire and electric shock.
  • Do not disassemble or modify the unit. It may cause failure and electric shock.
  • Do not damage or use an unspecified power cord. It may cause fire and electric shock.
  • If the power cord is damaged, it must be replaced by the manufacturer an authorized service centre or a similarly qualified person to avoid electrical risk.
  • Do not use the unit near flammable gas or combustibles, such as gasoline, benzene, thinner, etc. It may cause a fire.
  • Before cleaning, turn off the power and unplug the unit.
  • Do not remove the water bucket during operation, the bucket’s full protection may be activated and risk electric shock.

CAUTIONS

  • Do not use the unit in small spaces. Lack of ventilation can cause overheating and fire.
  • Do not use it in places where water may splash onto the unit. Water may enter the unit and degrade the insulation. It may cause an electric shock or fire.
  • Place the unit on a level, sturdy section of the floor. If the unit falls over, it may cause water to spill and damage belongings, or cause electrical shock or fire.
  • Never insert your finger or other foreign objects into grids or openings. Take special care to warn children of these dangers. It may cause failure or electric shock.
  • Do not climb up on or sit on the unit. You may be injured if you fall or if the unit falls over.
  • Always insert the filters securely, and take caution to avoid injuries to hands and fingers. Clean the filter once every two weeks.
  • If water enters the unit, turn the unit off and disconnect the power, contact a qualified service technician.
  • Do not place flower vases or other water containers on top of the unit. Water may spill inside the unit, causing insulation failure and electrical shock or fire.
  • If the unit is knocked over during use, turn off the unit and unplug it from the main power supply immediately. Visually inspect the unit to ensure there is no damage. If you suspect the unit has been damaged, contact customer service or a qualified technician.
  • In a thunderstorm, the power should be disconnected to the unit due to lightning.
  • Do not run the power cord under the carpeting. Do not cover the cord with throw rugs, runners, or similar coverings. Do not route the cord under furniture or appliances. Arrange the cord away from the traffic area and where it will not be tripped over.

WARNING – Electrical Information

  • The manufacture’s nameplate is located on the rear panel of the unit and contains electrical and other technical data specific to this unit.
  • Be sure the unit is properly grounded. To minimize shock and fire hazards, proper grounding is important. The power cord is equipped with a three-prong grounding plug for protection against shock hazards.
  • Your unit must be used in a properly grounded wall receptacle. If the wall receptacle you intend to use is not adequately grounded or protected by a time delay fuse or circuit breaker, have a qualified electrician install the proper receptacle.
  • Ensure the receptacle is accessible after the unit installation.
  • To avoid the possibility of personal injury, always disconnect the the unit from power supply, before installing and/or servicing.

AVERTISSEMENTS – For your safety

  • Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other appliance.
  • Avoid fire hazards or electric shock. Do not use an extension cord or an adaptor plug. Do not remove any prongs from the plug.

FOR R32 REFRIGERANT MODEL

North America Products

CAUTION: Risk of fire flammable materials

IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

Explanation of symbols displayed on the unit

CAUTION

  • This symbol shows that the operation manual should be read carefully.
  • This symbol shows that service personnel should be handling this equipment concerning the installation manual.
  • This symbol shows that information is available such as the operating manual or installation manual.

WARNING

  • Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance supervision and repair requiring the assistance of other skilled personnel shall be carried out under the of the person competent in the use of flammable refrigerants.
  • DO NOT modify the length of the power cord or use an extension cord to power the unit.
  • DO NOT share a single outlet with other electrical appliances. Improper power supply can cause fire or electrical shock.
  • Please follow the instructions carefully to handle, install, clear, and service the air conditioner to avoid any damage or hazard. Flammable Refrigerant R32 is used within air conditioner.
  • When maintaining or disposing of the air conditioner, the refrigerant (R32) shall be recovered properly, and shall not discharge to air directly.
  • Compliance with national gas regulations shall be observed.
  • Keep ventilation openings clear of obstruction.
  • The appliance shall be stored to prevent mechanical damage from occurring.
  • A warning that the appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.
  • Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry-recognised assessment specification.

Examples of such working procedures are:

  • breaking into the refrigerating circuit;
  • opening of sealed components;
  • opening of ventilated enclosures.
  • No open fire or device like a switch which may generate spark/arcing shall be around the air conditioner to avoid causing ignition of the flammable refrigerant used. Please follow the instructions carefully to store or maintain the air conditioner to prevent mechanical damage from occurring.
  • Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
  • The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance) and ignition sources (for example: an operating electric heater) close to the appliance. The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
  • Do not pierce or burn.
  • Be aware that the refrigerants may not contain an odour.
  1. Transport of equipment containing flammable refrigerants See transport regulations.
  2. Marking of equipment using signs See local regulations.
  3. Disposal of equipment using flammable refrigerants See national regulations.
  4. Storage of equipment/appliances The storage of equipment should be by the manufacturer’s instructions.
  5. Storage of packed (unsold) equipment Storage package protection should be constructed such that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge. The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.

Information on servicing

  1. Checks to the area
    Before beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the following precautions shall be complied with before conducting work on the system.

  2. Work procedure
    Work shall be undertaken under a controlled procedure to minimise the risk of a flammable gas or vapour being present while the work is being performed.

  3. General work area
    All maintenance staff and others working in the local area shall be instructed on the nature of the work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material.

  4. Checking for the presence of refrigerant
    The area shall be checked with an appropriate refrigerating detector before and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.

  5. Presence of a fire extinguisher
    If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.

  6. No ignition sources
    No person carrying out work to a refrigerating system that involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repair, removal and disposal, during which flammable refrigerant can be released to the surrounding space. Before work takes place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. No Smoking signs shall be displayed.

  7. ventilated area
    Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.

  8. Checks to the refrigerating equipment
    Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall
    be followed. If in doubt consult the manufacturer’s technical department for assistance. The following checks shall be applied to installations using flammable refrigerants:
    The actual refrigerant charge is by the room size within which the refrigerant-containing parts are installed; The ventilation machinery and outlets are operating adequately and are not obstructed; If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant; Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected; Refrigerating pipe or components are installed in a position where they are unlikely to be exposed to any substance that may corrode refrigerant- containing components unless the components are constructed of materials that are inherently resistant to being corroded or are suitably protected against being so corroded.

  9. Checks to electrical devices
    Repair and maintenance of electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised.

Initial safety checks shall include: That capacitors are discharged: this shall be done safely to avoid the possibility of sparking; That there no live electrical components and wiring are exposed while charging, recovering or purging the system; That there is continuity of earth bonding.

Repairs to sealed components

  1. During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon before any removal of sealed covers, etc. If it is necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
  2. Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc. Ensure that the apparatus is mounted securely. Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress of flammable atmospheres. Replacement parts shall be to the manufacturer’s specifications.

NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not have to be isolated prior to working on them.

Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while living in the presence of a flammable atmosphere. The test apparatus shall be at the correct rating. Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak.

Cabling
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.

Detection of flammable refrigerants
Under no circumstances shall potential sources of ignition be used in the search for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used. The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area). Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximum) is confirmed. Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found that requires brazing, all of the refrigerant shall be recovered from the system, or isolated (using shut-off valves) in a part of the system remote from the leak. Removal of refrigerant shall be according to Removal and evacuation.

Removal and evacuation
When breaking into the refrigerant circuit to make repairs – or for any other purpose– conventional procedures shall be used. However, for flammable refrigerants best practice must be followed since flammability is a consideration. The following procedure shall be adhered to:

  • safely remove refrigerant following local and national regulations;
  • purge the circuit with inert gas;
  • evacuate (optional for A2L);
  • purge with inert gas (optional for A2L); e) open the circuit by cutting or brazing.

The refrigerant charge shall be recovered into the correct recovery cylinders if venting is not allowed by local and national codes. For appliances containing flammable refrigerants, the system shall be purged with oxygen-free nitrogen to render the appliance safe for flammable refrigerants. This process might need to be repeated several times. Compressed air or oxygen shall not be used for purging refrigerant systems. For appliances containing flammable refrigerants, refrigerant purging shall be achieved by breaking the vacuum in the system with oxygen-free nitrogen and continuing to fill until the working pressure is achieved, then venting to the atmosphere, and finally pulling down to a vacuum (optional for A2L). This process shall be repeated until no refrigerant is within the system (optional for A2L). When the final oxygen- free nitrogen charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. Ensure that the outlet for the vacuum pump is not close to any potential ignition sources and that ventilation is available.

Charging procedures

In addition to conventional charging procedures, the following requirements shall be followed. Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in them. Cylinders shall be kept in an appropriate position according to the instructions. Ensure that the refrigeration system is earthed before charging the system with refrigerant. Label the system when charging is complete (if not already). Extreme care shall be taken not to overfill the refrigeration system. Before recharging the system it shall be pressure tested with OFN. The system shall be leak tested on completion of charging but before commissioning. A follow-up leak test shall be carried out before leaving the site.

Decommissioning
Before carrying out this procedure, the technician must be completely familiar with the equipment and all its details. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant. Electrical power must be available before the task is commenced.

  • Become familiar with the equipment and its operation.
  • Isolate system electrically.
  • Before attempting the procedure ensure that: Mechanical handling equipment is available, if required, for handling refrigerant cylinders; All personal protective equipment is available and being used correctly; The recovery process is supervised at all times by a competent person; Recovery equipment and cylinders conform to the appropriate standards.
  • Pump down the refrigerant system, if possible.
  • If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.
  • Make sure that the cylinder is situated on the scales before recovery takes place.
  • Start the recovery machine and operate by instructions.
  • Do not overfill cylinders. (No more than 80 % volume liquid charge).
  • Do not exceed the maximum working pressure of the cylinder, even temporarily.
  • When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from the site promptly and all isolation valves on the equipment are closed off.
  • Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.

Labelling
Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant.

Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure relief valves and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants.In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult the manufacturer if in doubt. The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged.

Do not mix refrigerants in recovery units especially not in cylinders. If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The evacuation process shall be carried out before returning the compressor to the suppliers. Only electric heating to the compressor body shall be employed to accelerate this process. When oil is drained from a system, it shall be carried out safely. Non-duct connected appliances containing A2L refrigerants with the supply and return air openings in the conditioned space may have the body of the appliance installed in open areas such as false ceilings not being used as return air plenums, as long as the conditioned air does not directly communicate with the air of the false ceiling.

Unit Specifications and Features

Product Overview

Midea-MAD22C3WMT-Dehumidifier-fig-1

NOTE
All the pictures in this manual are for illustrative purposes only. The dehumidifier you purchased may be slightly different, but its operations and functions are similar.

Accessories

  • Pump drain hose (1 pc) (only for units with the drain pump feature)
  • Power cord buckle (1 pc)

Operating Instructions

CAUTION
Clean your unit occasionally to keep it looking new. Be sure to unplug the unit before cleaning to prevent shock or fire hazards.

Key Pad Features

Midea-MAD22C3WMT-Dehumidifier-fig-5

Control Pads
When you push the button to change operation modes, the unit will make a beep sound to indicate that it is changing modes.

(PUMP) Button (PUMP Models Only)

  • Press to activate the pump operation.

NOTE
Make sure the pump drain hose is installed into the unit and the drain hose is removed from the unit before the pump operation is activated. When the bucket is full, the pump starts to work. Refer to the next pages for removing the collected water. Do not use this operation when the outdoor temperature is equal to or less than 0°C (32°F).

(COMFORT) Button
Press to activate the comfort dehumidifying operation.

NOTE
In this operation, the unit can not be set to humidity level. For some models, under comfort dehumidifying operation, pressing the Up/Down button will cancel this feature.

(FILTER) Button
This feature is a reminder to clean the Air Filter for more efficient operation. The LED (light) will flash after 250 hours of operation. To reset after cleaning the filter, press the Filter button and the light will go off. The 250 hour counter will reset.

(CONTINUE) Button
Press to activate the continuous dehumidifying operation.

NOTE
When the CONTINUOUS mode function is turned on, set humidity is automatic and cannot be changed manually.

(TURBO) Button
Control the Turbo speed. Press to select either Turbo or normal fan speed. Set the Turbo control to high for maximum moisture removal. When room humidity is at your preferred level, it is advised to turn off Turbo speed.

(TIMER) Button
Starts the Timer ON and Timer OFF function setting.

Up/Down Buttons ( / )

  • Humidity Set Control Buttons The humidity level can be set within a range of 35% RH (Relative Humidity) to 85% RH (Relative Humidity) in 5% increments.

For drier air, press the button and set it to a lower value (%). For damper air, press the button and set a higher value (%).

TIMER Set Control Buttons
Use the and key buttons to set the Timer ON or Timer OFF from 0 to 24 hours.

(POWER) Button
Press to turn the dehumidifier on and off.

LED Display
Shows the set % humidity level from 35% to 85% or auto start/stop time (0 ~ 24) while setting, then shows the actual (+/- 5% accuracy) room % humidity level in a range of 30% RH (Relative Humidity) to 90% RH (Relative Humidity).

Error Codes and Protection Codes:

  • AS – Humidity sensor error – Unplug the unit and plug it back in. If the error persists, contact Customer Service.
  • ES – Tube Temperature sensor of the evaporator error – Unplug the unit and plug it back in. If the error persists, contact Customer Service.
  • P2 – Bucket is full or bucket is not in the right position – Empty the bucket and replace it in the right position. (only available for the unit with no pump feature.)
  • P2 – Bucket is full – Empty the bucket. (only available for the unit with pump feature.)
  • EC – Refrigerant leakage detection – The display area will show EC when the unit detects refrigerant leakage. If the error persists, contact Customer Service.
  • Eb – Bucket is removed or not in the right position – Replace the bucket in the right position. (only available for the unit with pump feature.)

Other Features

Bucket Full Light
Lights up when the bucket is ready to be emptied.

Auto Shut Off
The dehumidifier shuts off when the bucket is full, or when the bucket is removed or not replaced in the proper position. When the set point humidity level is reached, the unit will be shut off automatically. The fan motor will continue operating.

Auto Defrost
When the frost builds up on the evaporator coils, the compressor will cycle off and the Auto Defrost function will run automatically.

3-minute compressor operation delay protection
After the unit has stopped, it can not be restarted in the first 3 minutes to protect compressor operation. The unit will restart automatically after 3 minutes.

Auto-Restart
If the unit stops unexpectedly due to a power cut, it will restart with the previous function setting automatically when the power resumes.

Setting the Timer ON and Timer OFF

  • When the unit is on, first press the Timer button, the Timer OFF indicator light illuminates. It indicates the Timer OFF program is initiated. Press it again the Timer ON indicator light illuminates. It indicates the Timer ON is initiated.
  • When the unit is off, first press the Timer button, the Timer ON indicator light illuminates. It indicates the Timer ON program is initiated. Press it again the Timer OFF indicator light illuminates. It indicates the Timer OFF is initiated.
  • Press or hold the and key buttons to change the Timer by 0.5 hour increments, up to 10 hours, then at 1 hour increments up to 24 hours. The control will count down the time remaining until start.
  • The selected time will register in 5 seconds and the system will automatically revert back to display the previous humidity setting.
  • When the Timer ON and Timer OFF times are set, within the same program sequence, indicator lights illuminate identifying both ON and OFF times are now programmed.
  • Turning the unit ON or OFF at any time or adjusting the timer setting to 0.0 will cancel the Timer function.
  • When LED display window displays the code of P2, the Auto Start/Stop function will also be cancelled.

NOTES

  • When first using the dehumidifier, operate the unit continuously 24 hours. Make sure the plastic cap on the drain hose outlet installs slightly properly so there are no leaks.
  • This unit is designed to operate with a working environment between 5°C/41°F and 32°C/90°F.
  • Make sure the water bucket is positioned correctly so that the unit can operate properly. When the water in the bucket reaches a certain level, please be careful while moving the unit to avoid it spilling.

Removing Collected Water

There are three ways to remove collected water:

Use the bucket

  • When the unit is off, if the bucket is full, the Full indicator light will light.
  • When the unit is on, if the bucket is full, the compressor and the fan turn off, and the Full indicator light will light, the digital display shows P2.
  • Slowly pull out the bucket. Grip the left and right handles securely, and carefully pull out straight so water does not spill. Do not put the bucket on the as because the bottom of the bucket is uneven. Otherwise, water may be spilled.
  • Empty the water and reposition the bucket.
  • The unit will restart operation when the bucket is back in place.
  1. Pull out the bucket.
  2. Hold both sides of the bucket evenly, and pull it out from the unit.
  3. Pour the water out.

NOTES

  • When you remove the bucket, do not touch any parts inside the unit. Doing so may damage the product.
  • Be sure to push the bucket gently into the unit.
  • If the pump hose falls off when you remove the bucket (see Fig. 7), you must reinstall the pump hose properly to the unit before replacing the bucket into the unit (see Fig. 8).
  • When the unit is on, if the bucket is removed, the compressor and the fan turn off, then the unit will beep 8 times and the digital display shows Eb.
  • When the unit is off, if the bucket is removed, the unit will beep 8 times and the digital display shows Eb.

Continuous draining

  • Water can be automatically emptied into a floor drain by attaching the unit with a water hose (Id Ø 5/16”, not included) with a female threaded end (ID: M = 1”, not included).
  • Remove the plastic cap from the back drain outlet of the unit and set aside, then insert the drain hose through the drain outlet of the unit and lead the drain hose to the floor drain or a suitable drainage facility. (See Fig. 9 and Fig. 10)
  • When you remove the plastic cap, if there is some water in the back drain outlet of the unit you must dry it. Make sure the hose is secure so there are no leaks and the end of the hose is level or sloping downwards to let the water flow.
  • Direct the hose toward the drain, making sure that there are no kinks that will stop the water flowing.
  • Select the desired humidity setting and fan speed on the unit for continuous draining to start.

NOTE
When the continuous draining feature is not being used, remove the drain hose from the outlet, and dry the water in the drain hose outlet.

Pump draining (Pump models only)
Water can be automatically emptied into a floor drain or a suitable drainage facility by attaching the pump drain out with a pump drain hose (Ø od = 1/4”, supplied).

  • Remove the drain hose from the unit and install the plastic cap to the drain hose outlet of the unit by clockwise rotation. (See Fig. 11)
  • Insert the pump drain hose into the pump drain hose outlet for at least 15 mm (See Fig. 11), then lead the water hose to the floor drain or a suitable drainage facility.
  • Press the pump pad on the unit to activate the pump operation. When the bucket is full the pump starts to work.Midea-MAD22C3WMT-Dehumidifier-fig-14

NOTE
The pump may generate a loud noise for the first 3~5 minutes of operation.

  • Make sure the hose is secure so there are no leaks.
  • Direct the hose toward the drain, making sure that there are no kinks that will stop the water flowing.
  • Place the end of the hose into the drain.
  • Select the desired humidity setting and fan speed on the unit for pump draining to start.

NOTE
The pump operation light blinks when a failure occurs. Please turn off the unit and disconnect the power cord. Check the following items:

  • Cleaning the pump filter:
    • Remove the bucket from the unit, take down the pump and clean the pump filter (See Fig. 12).
  • Check if the drain hose is clean and free of debris.
  • Empty the water from the bucket.
  • Check the hose connection and the bucket for proper fitment. If the error persists, contact Customer Service.

NOTE
Do not use this operation when the outdoor temperature is equal to or less than 0°C (32°F), otherwise water may freeze ice causing the water hose to be blocked and the unit to stop operating. Make sure to empty the bucket at least once a week when using the pump draining feature. When the pump draining feature is not being used, remove the pump drain hose from the outlet.

Installation Instructions

Positioning the Unit
A dehumidifier operating in a basement will have little or no effect in drying an adjacent enclosed storage area, such as a closet, unless there is adequate circulation of air in and out of the area. (See Fig. 13)

  • Do not use outdoors.
  • This dehumidifier is intended for indoor residential applications only. This dehumidifier should not be used for commercial or industrial applications.
  • Place the dehumidifier on a smooth, level floor strong enough to support the unit with a full bucket of water.
  • Allow at least 8” of air space on all sides of the unit for air circulation (at least 16” for air outlet).
  • Place the unit in an area where the temperature will not fall below 41°F (5°C). The coils can become covered with frost at at lower temperatures, which may reduce performance.
  • Place the unit away from any clothes dryer, heater or radiator.
  • Close all doors, windows and other outside openings to the room.Midea-MAD22C3WMT-Dehumidifier-fig-16

Care and Cleaning

Turn the dehumidifier off and disconnect the plug from the power source before cleaning.

Clean the grid and Case

  • Use water and a mild detergent. Do not use bleach or abrasives.
  • Do not splash water directly onto the unit. Doing so may cause an electrical shock, cause the insulation to deteriorate, or cause the unit to rust.
  • The air intake and outlet may get dirty during operation, use a vacuum cleaner or brush to clean.

Clean the bucket
Every few weeks, clean the bucket thoroughly to prevent the growth of mould, mildew and bacteria. Partially fill the bucket with clean water and mild detergent. Swish it around in the bucket, empty and rinse.

NOTE
Do not use a dishwasher to clean the bucket.

Clean the air filter

  • To remove the filter, pull the filter outwards (See Fig. 14).
  • Wash the filter with clean water then dry.
  • Re-install the filter, and replace the bucket.

CAUTION
DO NOT operate the dehumidifier without a filter to avoid loss of performance and damage to the unit.

When not using the unit for long periods

  • Before storing the unit, let it rest for one full day so that the system can dry out naturally.
  • Clean the unit, water bucket and air filter.
  • Wrap the cord with the power cord buckle.
  • Cover the unit with a plastic bag.
  • Store the unit upright in a dry, well-ventilated area.

Troubleshooting Tips

Before calling for service, review this list. It may save you time and money. This list includes common occurrences that are not the result of defective workmanship or materials in this appliance.

Midea-MAD22C3WMT-Dehumidifier-fig-18

Warranty

Dehumidifier Limited Warranty
Your product is protected by this Limited Warranty: Warranty service must be obtained from Midea Consumer Services or an authorized Midea servicer.

Warranty

  • One-year limited warranty from the original purchase date.

Midea, through its authorized servicers, will:

  • Pay all costs for repairing or replacing parts of this appliance that prove to be defective in materials or workmanship.

The consumer will be responsible for:

  • Diagnostics, removal, transportation and reinstallation costs are required because of service.
  • Costs of service calls that are a result of items listed under NORMAL RESPONSIBILITIES OF THE CONSUMER** Midea replacement parts shall be used and will be warranted only for the original warranty.

NORMAL RESPONSIBILITIES OF THE CONSUMER**
This warranty applies only to products in ordinary household use, and the consumer is responsible for the items listed below:

  1. Proper use of the appliance by instructions provided with the product.
  2. Routine maintenance and cleaning are necessary to keep the good working condition.
  3. Proper installation by an authorized service professional by instructions provided with the appliance and by all local plumbing, electrical and/or gas codes.
  4. Proper connection to a grounded power supply of sufficient voltage, replacement of blown fuses, repair of loose connections or defects in house wiring.
  5. Expenses for making the appliance accessible for servicing.
  6. Damages to finish after installation.

EXCLUSIONS
This warranty does not cover the following:

  1. Failure caused by damage to the unit while in your possession (other than damage caused by defect or malfunction), by its improper installation, or by unreasonable use of the unit, including without limitation, failure to provide reasonable and necessary maintenance or to follow the written installation and Operating Instructions.
  2. Damages caused by services performed by persons other than authorized Midea customer service; or external causes such as abuse, misuse, inadequate power supply or acts of God.
  3. If the unit is put to commercial, business, rental, or other use or application other than for consumer use, we make no warranties, express or implied, including but not limited to, any implied warranty of merchantability or fitness for use or purpose.
  4. Products without original serial numbers or products that have serial numbers that have been altered or cannot be readily determined.

NOTE: Some countries do not allow the exclusions or limitation of incidental or consequential damages. So this limitation or exclusion may not apply to you.

IF YOU NEED SERVICE
Keep your bill of sale, delivery slip, or some other appropriate payment Record. The date on the bill establishes the warranty period, should service be required. If service is performed, its your best interest to obtain and keep all receipts. This written warranty gives you specific legal rights. You may also have other rights that vary from one country to another. Service under this warranty must be obtained by following these steps, in order:

  1. Contact Midea Consumer Services or an authorized Midea services at 1 866 646 4332.
  2. If there is a question as to where to obtain service, contact our consumer relations Department.

References

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>

Related Manuals