Shark HV390 Series FLEX DuoClean Vacuum FAQs

: June 9, 2024
: Shark

Table of Contents

Shark HV390 Series FLEX DuoClean Vacuum FAQs
FAQs
General questions about maintenance:
General Questions:
General questions about using the vacuum:
Product Specifications:
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Shark HV390 Series FLEX DuoClean Vacuum FAQs

Shark HV390 Series FLEX DuoClean Vacuum

This article contains the FAQs for the HV390 Series SharkFLEX® DuoClean® Vacuum. This supports the following product SKUs HV390, HV391, HV392, HV392C, HV394Q, HV394QBL, HV394QCO, HV394QGR, HV394QRG, and HV394QS.

FAQs

General questions about maintenance:

How do I clean the filters and how often?

The pre-motor filters are located behind the dust cup. First, turn the power off and unplug the vacuum. Remove the dust cup by squeezing the two “Detach Dust Cup” buttons on both sides of the dust cup and pulling it straight out. Place the rest of the vacuum on the floor. Pull out the filter assembly. Gently separate the cylindrical foam filter from the felt. Rinse both filters with water until the water runs clear. DO NOT use soap. Let air dry completely (at least 24 hours) before reinstalling. Slide the foam filter back onto the felt filter and reinstall behind the dust cup. Reattach the dust cup into the handheld vacuum until you hear it click into place.

The post-motor filter is located under the handle of the vacuum. Press the button to remove the cover and pull out this filter. Rinse with water until the water runs clear. DO NOT use soap. Let air dry completely (at least 24 hours) before reinstalling. Reinstall the filter under the handle and press the cover closed until it clicks into place.

For optimal performance, clean filters on a regular basis. Between washings, your filter can be tapped clean to remove any excess dust and other particles into the trash.

Pre-Motor Foam and Felt Filters: Under normal usage, rinse and let air dry completely (for at least 24 hours) once a month.
Post-Motor Filter: Under normal usage, rinse and air dry once every 9 months or as needed.

How do I store the machine?

Press the MultiFLEX Wand Lock Release button and gently fold the handheld vacuum forward toward the floor nozzle until it locks in storage mode. Wrap the power cord around the two cord hooks. Use the handle to carry the vacuum to its storage location. To take the vacuum out of storage mode, press the MultiFLEX Wand Lock Release button while lifting up the handheld vacuum. When straightened, the wand will lock in place.

How do I empty the dust cup?

There are two ways to empty the dust cup. Turn the power off and unplug the vacuum first.

One way is to remove just the dust cup from the vacuum. Squeeze the two “Detach Dust Cup” buttons on both sides of the dust cup and pull it straight out. Place the rest of the vacuum on the floor. Hold the dust cup over the trash and use the “Press to Empty” button. Tap gently to empty contents and pull any debris off of the metal screen. Close the lid. Reattach the dust cup by inserting it straight up into the handheld vacuum until you hear it click into place.

Another way is to separate the handheld from the rest of the vacuum by pressing the “Wand Release” button. Next, hold the dust cup over the trash and press the “Press to Empty” button. Tap gently to empty contents and pull any debris off of the metal screen. If desired, wipe clean with a dry soft cloth. Close the lid. You will hear it click into place.

For optimal performance, the dust cup should be emptied each time you vacuum and when the dust cup appears full or debris reaches the “MAX FILL” line.

How do I remove and maintain the Soft Roller?

First, turn the power off and unplug the vacuum. Remove the brushroll garage located on the top of the nozzle by sliding both “Access Brush Roll” buttons toward the back of the nozzle.

Pull out the soft roller using the “Pull” tab located on the right side of the roller.

Remove any debris from the soft roller housing. Wipe the soft roller with a dry paper towel. If desired, wash the roller with water only and let air dry completely before reinstalling (24 hours).

Reinsert the soft roller by sliding it into the front of the nozzle, starting on the left side, until it clicks into place. Close the brushroll garage by inserting the tabs on the lid into the slots, then pressing down on both sides of the lid until it clicks into place.

How to maintain the brushroll?

Open the brushroll garage by sliding both release buttons away from you, toward the back of the nozzle, then lifting off the lid.

Remove any string, hair, or debris that may be wrapped around the brushroll by running scissors or the lower corner of the lid along the guide on the brushroll.

General Questions:

How is a Shark vacuum with DuoClean technology different than

traditional vacuums?

The SharkFlex Corded Ultra-Light vacuum is equipped with DuoClean Technology. Instead of a single brushroll, it has two brushrolls engineered to work in unison, removing large debris and fine dust particles from all of your floors and carpets.

How do I assemble the vacuum?

Insert the wand into the motorized floor nozzle connector until it clicks into place.

Insert the handheld vacuum into the top of the wand until it clicks into place.

Will the lights burn out?

The LED lights in the nozzle should not burn out if the vacuum is functioning as it should.

What is MultiFLEX technology?

MultiFLEX technology allows the wand to bend, giving it 2 main benefits. The bent wand creates an angle for easy cleaning under furniture and allows the vacuum to fold over for compact, upright storage.

What is the handle on the top of the wand for?

This handle can be used to assist in taking the vacuum in and out of MultiFLEX storage mode. To go into storage mode, hold the handle with one hand while folding the handheld vacuum forward with the other toward the nozzle.

The handle can also be used to carry the vacuum while in MultiFLEX storage mode.

How do I wrap the power cord so I don’t need to unwrap it when taking

the vacuum in and out of MultiFLEX storage mode?

Looking at the vacuum from the side with the cord hooks, wrap the power cord counterclockwise around the hooks, starting under the bottom hook. Then hold down the “Press to Unlock” button and gently fold the handheld vacuum forward toward the floor nozzle. Use the handle to carry the vacuum to its storage location.

General questions about using the vacuum:

How do I begin cleaning floors?

The SharkFlex corded vacuum has two powerful settings for cleaning ” a Bare floor, Area Rug Setting and a High Pile Carpet Setting. Note that the headlights will illuminate any time the power is on and the brushrolls are spinning.

Bare floors and Area Rugs: Push the power switch up on the handheld to the “Bare Floor, Area Rugs” setting. Then tilt the handheld back while gently stepping on the floor nozzle. Note that the brushrolls will spin slowly in this mode.

Carpets: Push the power switch up on the handheld to the “High Pile Carpets” setting. Then tilt the handheld back while gently stepping on the floor nozzle. Note that the brushrolls will spin fast in this mode.

How do I remove the handheld vacuum to clean “above floors?”

Press the wand release button at the top of the wand and pull the handheld vacuum off, separating it from the rest of the vacuum. Attach desired accessory and begin cleaning.

How do I remove the handheld vacuum with extension wand to clean “above

floors?”

Remove the power cord from the cord hooks. Step on the “Wand Release” foot pedal on the floor nozzle and pull the wand off. Attach desired accessory to the end of the wand and begin cleaning.