Honeywell RTH6300B Programmable Thermostat Operating Manual

June 13, 2024
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Honeywell RTH6300B Programmable Thermostat Operating Manual

Honeywell-RTH6300B-Programmable-Thermostat-product

Quick Reference Card
Grasp and pull to see basic operating instructions at a glance. Battery Holder Press down and pull to remove batteries. Batteries should be replaced once a year (see page 15).

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(1\)

Need Help?
For assistance with this product please visit www.honeywell.com/yourhome or call Honeywell Customer Care toll-free at 1-800-468-1502

Read and save these instructions
U.S. Registered Trademark. Patents pending. Copyright © 2005 Honeywell International Inc. All rights reserved.

This thermostat is ready to go!
Your new thermostat is pre-programmed and ready to go. See page 3 to check settings.

About your new thermostat
Congratulations on the purchase of your new Honeywell thermostat. It has been designed to give you many years of reliable service and easy-to-use, push- button climate control.

Features

  • Separately programmable weekday/weekend schedules.
  • One-touch temp control overrides program schedule at any time.
  • EnergyStar® compliant to greatly reduce your heating/cooling expenses.
  • Large,clear, backlit display is easy to read — even in the dark.
  • Displays both room temperature and temperature setting.
  • Removable battery holder for fast, easy replacement.
  • Built-in compressor protection. This thermostat is ready to go!

Your new thermostat is pre-programmed and ready to go.All you have to do is set the time and day.Then check the settings below and change if needed:

ONE-TOUCH TEMP CONTROL
You can override the program schedule at any time, and manually adjust the temperature (see pages 12-13).

ONE-TOUCH TEMP CONTROL
You can override the program schedule at any time, and manually adjust the temperature (see pages 12-13).

Quick reference to controls
Digital display (see page 5)

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Function buttons
Press to select the function displayed just above each button.(Functions change depending on the task.)

Quick reference to display screen

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(3\)

Set the time and day
Press SET CLOCK/DAY/SCHEDULE, then adjust time

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(4\)

  1. Press the SET CLOCK/DAY/SCHEDULE button, then press or to set the clock time.
  2. Press the SET DAY button, then press or to select the day of the week.
  3. Press DONE to save & exit.
    Note: If the SET CLOCK/DAY/SCHEDULE option is not displayed, press DONE or RUN SCHEDULE.

Note: If the display flashes Set Clock, the thermostat will follow your settings for the weekday “Wake” time period until you reset the time and day.

Select the fan setting

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(7\)

Press the FFAANN button to select Auto or On. In “Auto” mode (the most commonly used setting), the fan runs only when the heating or cooling system is on. If set to “On,” the fan runs continuously. Use this setting for improved air circulation, or for more efficient air cleaning.

Select the system setting
Press the SSYYSSTTEEMM button to select Heat, Cool or Off.

  • Heat: Thermostat controls only the heating system.
  • Cool: Thermostat controls only the cooling system.
  • Off: Heating and cooling systems are off.

CAUTION: EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C).

Save money by setting program schedules
It’s easy to program your system for maximum energy savings.You can program four time periods each day, with different settings for weekdays and weekends.

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(9\)

EnergyStar® settings for maximum cost savings
This thermostat is pre-set to use EnergyStar® program settings.We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time period.)

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(10\)

To adjust program schedules

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(11\)

  1. Press SET CLOCK/DAY/SCHEDULE, then SET SCHEDULE.
  2. Press or to set your weekday Wake time (Mon-Fri), then press NEXT.
  3. Press or to set the temperature for this time period, then press NEXT.
  4. Set time and temperature for the next time period (Leave). Repeat steps 2 and 3 for each weekday time period.
  5. Press NEXT to set weekend time periods (Sat-Sun), then press DONE to save & exit.
    Note: Make sure the thermostat is set to the system you want to program (Heat or Cool).
    Note: You can press CANCEL PERIOD to eliminate unwanted time periods (except Wake).

Program schedule override (temporary)

Press or to immediately adjust the temperature.This will temporarily override the temperature setting for the current time period. The new temperature will be maintained only until the next programmed time period begins (see page 10). For example, if you want to turn up the heat early in the morning, it will automatically be lowered later, when you leave for the day. To cancel the temporary setting at any time, press RUN SCHEDULE.
Note: Make sure the thermostat is set to the system you want to control (heat or cool).

Program schedule override (permanent)

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(12\)
Press HOLD to permanently adjust the temperature.This will override the temperature settings for all time periods. The “Hold” feature turns off the program schedule and allows you to adjust the thermostat manually, as needed. Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press RUN SCHEDULE to cancel “Hold” and resume the programmed schedule.
Note: Make sure the thermostat is set to the system you want to control (heat or cool).

Built-in compressor protection

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(14\)
This feature helps prevent damage to the compressor in your air conditioning or heat pump system. Damage can occur if the compressor is re-started too soon after shutdown.This feature forces the compressor to wait for a few minutes before restarting. During the wait time, the display will flash the message Cool On (or Heat On if you  have a heat pump).When the safe wait time has elapsed, the message stops flashing and the compressor turns on.

Battery replacement

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(15\)
Install fresh batteries immediately when the REPLACE BATTERY warning begins flashing.The warning flashes about two months before the batteries are depleted. Even if the warning does not appear, you should replace batteries once a year, or before leaving home for more than a month. If batteries are inserted within two minutes, the time and day will not have to be reset.All other settings are permanently stored in memory, and do not require battery power.

In case of difficulty
If you have difficulty with your thermostat, please try the suggestions below. Most problems can be corrected quickly and easily. Display is blank Make sure fresh AA alkaline batteries are correctly installed (see page 15).

Temperature settings do not change
Make sure heating and cooling temperatures are set to acceptable ranges:

  • Heat: 40° to 90°F (4.5° to 32°C).
  • Cool: 50° to 99°F (10° to 37°C).

To restore Energy Star default settings
Follow these steps to restore Energy Star default settings (see page 10):

  1. Press SET CLOCK/DAY/SCHEDULE.
  2. press SET SCHEDULE.
  3. Press DONE and NEXT at the same time for 4 seconds.

Heating or cooling system does not respond

  • Press SYSTEM button to set system to Heat. Make sure the temperatureis set higher than the Inside temperature.
  • Press SYSTEM button to set system to Cool. Make sure the temperature is set lower than the Inside temperature.
  • Check circuit breaker and reset if necessary.
  • Make sure power switch at heating & cooling system is on.
  • Make sure furnace door is closed securely.
  • Wait 5 minutes for the system to respond.
  • In case of difficulty “Cool On” or “Heat On” is flashing
  • Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor (see page 14). Other problems
  • If the above measures do not resolve the problem, check the In Case of Difficulty section in your thermostat Installation Guide.

Customer assistance
For assistance with this product, please visit www.honeywell.com/yourhome. Or call
Honeywell Customer Care toll-free at 1-800-468-1502.

Honeywell-RTH6300B-Programmable-Thermostat-fig- \(16\)

To save time, please remove the battery holder and note your model number and date code before calling. Accessories/replacement parts To order, please call Honeywell
Customer Care toll-free at 1-800-468-1502.
Battery holder………………….Part No. 50007072-001
Cover plate assembly ……..Part No. 50002883-001
(Use to cover marks left by old thermostats.)

Limited 1-year warranty

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option). If the product is defective, return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr.N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option). If the product is defective,  return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr.N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.

THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT.THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468- 1502. In Canada, write Retail Products ON15-02H, Honeywell Limited Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V4Z9

Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9

U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.
Printed in U.S. Document number 69-1723. Date 01-2005.

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