The Honeywell T6 Pro Programmable Thermostat is a user-friendly device designed to help you save on heating and cooling expenses. This thermostat comes with a UWP Mounting System, Honeywell Standard Installation Adapter, screws, anchors, and 2 AA batteries. It also includes an installation guide and user manual to help you navigate the device’s features. The thermostat’s screen wakes up by pressing any of its five buttons, and it stays lit for 45 seconds after you complete changes if powered by the C wire. The device has different system modes, including Auto, Heat, Cool, Em Heat, and Off, and fan modes such as Auto, On, and Circ. Users can program four time periods each day with different settings for weekdays and weekends. The thermostat also has features like Adaptive Intelligent Recovery and Built-in Compressor Protection. This user guide provides detailed instructions on how to use the device’s features, troubleshoot common issues, and maintain the thermostat. If you need further assistance, you can contact Honeywell Customer Care toll-free at 1-800-468-1502.

Company LogoHoneywell Home T6 Pro Programmable Thermostat User Guide
Honeywell Home T6 Pro Programmable Thermostat

Honeywell Home T6 Pro Programmable Thermostat User Guide

Package Includes:

  • T6 Pro Thermostat
  • UWP Mounting System
  • Honeywell Standard Installation Adapter (J-box adapter)
  • Honeywell Decorative Cover Plate
    Small; size 4-49/64 in x 4-49/64 x
    11/32 in (121 mm x 121 mm x 9 mm)
  • Screws and anchors
  • 2 AABatteries
  • Installation Instructions and User Guide

Thermostat controls
Thermostat controls

The screen will wake up by pressing any of the five buttons. If powered by the C wire, the screen stays lit for 45 seconds after you complete changes. If powered by battery only, the screen stays lit for 8 seconds. Depending on how your thermostat was installed, the screen light may always be on.

Customer assistance

Call Honeywell Customer Care toll-free at 1-800-468-1502.

System operation settings
System Operations

  1. Press the Mode button to cycle to the next available System mode.
  2. Cycle through the modes until the required System mode is displayed and leave it to activate

NOTE: Available System modes vary by model and system settings.

System modes: 

  • Auto
  • Heat
  • Cool
  • Em Heat
  • Off

Fan operation settings
System Operation

  1. Press the Fan button to cycle to the next available Fan mode.
  2. Cycle through the modes until the required Fan mode is displayed and leave it to activate.

NOTE: Available Fan modes vary with system settings.

Fan modes: 

  • Auto: Fan runs only when the heating or cooling system is on.
  • On: Fan is always on.
  • Circ: Fanrunsrandomlyabout33% of the time.

Set the time and date

Time
System Operation

  1. Press Menu on your thermostat.
  2. Press or to go to TIME. Press Select.
  3. Press or to choose between 12 or 24 hour. Press Select.
  4. Use or to adjust the hour. Press Select.
  5. Use or to adjust the minutes. Press Select to exit Time menu.

Date
System Operation

  1. If previously setting time, continue to Step
  2. If at the Home screen, press Menu on your thermostat.
  3. Press or to go to DATE. Press Select.
  4. Use or to adjust year. Press Select.
  5. Use the or to adjust month. Press Select.
  6. Use the or to adjust day. Press Select to save and exit Date menu.

Program Schedule
System Operation

You can program four time periods each day, with different settingsfor weekdays and weekends. We recommend the pre-sets(shown in the table below),since they can reduce your heating/cooling expenses.

Wake – Set to the time you wake up and the temperature you want during the morning, until you leave for the day.

Away – Set to the time you leave home and the temperature you want while you are away (usually an energy-saving level).

Home – Set to the time you return home and the temperature you want during the evening, until bedtime.

Sleep – Set to the time you go to bed and the temperature you want overnight(usually an energy-saving level).

NOTE: To temporarily or permanently override any of the above program schedules.

To adjust program schedules
adjust program schedules
  1. Press Menu on your thermostat.
  2. PROG is displayed. Press Select. Then ON is displayed. Press Select. If you do not want to use a schedule, press or to display OFF. Press Select.
  3. Press or to select day or set of days to edit. Press Select.
  4. Press or to select a schedule period to edit (Wake, Away, Home, and Sleep). Press Select.
  5. ON is displayed. Press Select to keep the schedule period on. Or press and then Select to turn off the schedule period.
  6. Time starts blinking. Press or to adjust the schedule period start time. Press Select.
  7. Temperature starts blinking. Press or to adjust the “Heat” set point temperature. Press Select. Press or to adjust the “Cool” temperature set point. Press Select.
  8. Repeat steps 4 through 7 for the remaining schedule periods.
  9. Press Home when you’re finished to save and return to the home screen.
  10. Schedule can be adjusted and turned ON or OFF by returning to Menu and following the steps provided above.
Program schedule override (temporary)
System Operation
  1. Press or to adjust the temperature.
  2. Once at the desired set point temperature, no further action is needed. The new set point temperature will be held until the next scheduled time period begins. For more information on schedule time periods, see “Program Schedule” on page 3.
  3. To cancel the Temporary Hold, Press or and then press Cancel.
Program schedule override (permanent)
System Operation
  1. Press or to adjust the temperature.
  2. TEMPORARY HOLD is displayed and the setpoint temperature flashes. While it’s flashing, press Hold (Mode) button to change to Permanent Hold.
  3. To cancel the Permanent Hold, press or and then press Cancel.

Setting degrees Fahrenheit (F) or Celcius (C)
System Operation

  1. Press Menu.
  2. Press or to go to F / C. Press Select.
  3. Press or for F or C. Then press Select.
  4. Press Home to return to the home screen.

Adjusting keypad lockout

  1. Press Menu on the thermostat.
  2. Press or to go to LOCK. Press Select.
  3. Press or to go to OFF, PART, or ON, and then press Select.
    OFF: Unlocked, and full access allowed.
    PART: Partial lockout, allowing only the temperature to be changed.
    ON: No access allowed.
  4. To unlock the keypad, press the CENTER button and then enter the password “1234”. To enter the password, press or to change the first digit of the number. Then press Select. Repeat this process to enter the second through fourth digits of the number. Once all four numbers have been entered, press Select again.
  5. This will unlock the keypad.
  6. If the code is incorrect, the screen will flash the lines “–“.
  7. Press Back to go back a step to enter the correct number and  press Select.

Adaptive Intelligent Recovery

Over time, the Honeywell T6 Pro Thermostat “learns” how long it takes your system to reach the temperature you want. It turns on the heating or cooling system earlier to make sure you’re comfortable at the time you expect.

Built-in compressor protection
Operation Instruction

Damage can occur if the compressor is restarted 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
Battery Icon

Batteries are optional (to provide backup power) if your thermostat was wired to run on AC power when installed. If your thermostat was not wired to run on AC power, then batteries are required.

Install fresh batteries immediately when the low battery icon appears. The icon appears about two months before the batteries are depleted.

Even if the low battery icon 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.
Operation Instruction

NOTE: When replacing batteries, alkaline batteries are recommended.
Operation Instruction

Alerts

If there is an alert or reminder, the alert icon Alert Icon appears on the Home screen.
Product Instruction

Low Battery Warning 
  1. The batteries need to be replaced when BATT, the alert icon , and the battery icon Alert Icon are displayed on the Home screen.
  2. When the battery power is very low, the thermostat’s backlight is disabled to save battery power.
  3. When battery power is critically low, only BATT, the alert icon , and the battery icon Alert Icon are displayed.
    Product Instruction
Air Filter Reminder
Product Instruction
  1. The alert icon Alert Icon appears on the Home screen.
  2. Press Menu, and then press until display shows ALRT.
  3. Press Select to display which alert(s) are present.
  4. The message REPL (REPLACE AIR FILTER) appears.
  5. The reminder can be snoozed or cleared. Honeywell recommends changing the air filter before clearing the reminder.
  6. To snooze, press Select. The word SNZE (SNOOZE) appears. 7 Press Select again to snooze the reminder for 7 days.
  7.  To clear, press Select, and then press to go to CLER (Clear). 9 Press Select to clear the air filter reminder.
Snoozing and Clearing Alerts or Reminders
Product Instruction
  1. Press Menu, and then press until display shows ALRT.
  2. Press Select to display which alert(s) are present.
  3. The word SNZE (SNOOZE) appears.
  4. Press Select again to snooze the reminder for 7 days.
  5. To clear the alert ,press Select, and then press to go to CLER (Clear).
    6 Press Select to clear the reminder.
    Some alerts cannot be snoozed or cleared.
    Please call your local heating and cooling professional if this occurs. The heating and cooling system may require service.

Troubleshooting

If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily

Display is blank

  • Check circuit breaker and reset if necessary.
  • Make sure power switch for heating & cooling system is on.
  • Make sure furnace door is closed securely.
  • Make sure fresh AA alkaline batteries are correctly installed

Heating or cooling system does not respond

  • Press Mode button to set system Heat (see page 2).Make sure the desired temperature is set higher than the inside temperature.
  • Press Mode button to set system Cool. Make sure the desired temperature is set lower than the inside temperature.
  • Check circuit breaker and reset if necessary.
  • Make sure power switch for heating & cooling system is on.
  • Make sure furnace door is closed securely.
  • Wait 5 minutes for the system to respond.

Temperature settings do not change

Make sure heating and cooling temperatures are set to acceptable ranges

  • Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C)
  • Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C)

“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.

5-year limited 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 five (5) years 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,

  • (i) return it, with a bill ofsale or other dated proof of purchase, to the place from which you purchased it; or
  • (ii) 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, 1985 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.

This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.

Honeywell’ssoleresponsibilityshallbetorepairorreplacetheproductwithin
the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply 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 FIVE-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.

Caution Icon CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before beginning installation.

Caution Icon CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.

Caution Icon CAUTION: MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.

SPECIFICATIONS

Package Includes T6 Pro Thermostat, UWP Mounting System, Honeywell Standard Installation Adapter (J-box adapter), Honeywell Decorative Cover Plate, Screws and anchors, 2 AA Batteries, Installation Instructions and User Guide
Screen Wake-Up Press any of the five buttons
Screen Stay Lit Time 45 seconds (powered by C wire), 8 seconds (powered by battery only)
System Modes Auto, Heat, Cool, Em Heat, Off
Fan Modes Auto, On, Circ
Programmable Time Periods 4 per day
Recommended Presets Wake, Away, Home, Sleep
Features Adaptive Intelligent Recovery, Built-in Compressor Protection
Customer Care Honeywell Customer Care toll-free at 1-800-468-1502
Battery Life 2 months (low battery icon appears), recommended replacement once a year or before leaving home for more than a month
Alerts Low Battery Warning, Air Filter Reminder

FAQS

Will this reset, and return to it’s program if power has been interupted ? It says hardwire power only, and I see no spot for batteries

It remembers the programmed settings after a power loss. However, the clock will be behind after main power is restored because the last clock time is simply stored, but the clock is not running during the outage.

Does it read humidity?

no

Does this thermostat work with the SmartThings hub for home automation?

Since the flashed upgrade last year, this thermstat works consistently with both my Google Home app and the Honeywell Home app on my Galaxy 7 Android.

Is this unit Z-wave capable?

This colossal POS does not have the ability to automatically change from heat to cool little on Z-wave.

Will app let you know if the thermostat has power of its off WiFi?

The Honeywell app will warn you if it can’t communicate with the thermostat with a notification. This could indicate loss of power or loss of internet.

will the t6 thermostat work with slant fin base board hot water heating system?

Yes

will the t6 thermostat work with slant fin base board hot water heating system?

Yes

Is this 7 day programable? I need all 7days different.

Yes, you can program all 7 days differently.

is there an installation video?

https://www.youtube.com/watch?v=UQArSJfPJTY

What is the difference between the T6 and T6 Pro?

The T6 Pro has a battery backup. The T6 does not.

What is the difference between the T6 and T7?

The T7 has a battery backup. Both have a remote access capability.

What is the difference between the T8 and T8-N?

The T8-N has a battery backup. Both have a remote access capability.

What is the difference between the T9 and T9-N?

The T9-N has a battery backup. Both have a remote access capability.

What is the difference between the RTH2310B101 and RTH2310B101N?

The RTH2310B101N has a battery backup. Both have a remote access capability.

Our current T6 does not have an off switch and blows constantly. Does the wi-fi enable have the ability to be turned off?

Yes. Inside the app you can turn the fan on and off

Can the t5 be controlled by alexa?

No. Honeywell has models that are compatible with Alexa, but this one is not.

What comes in the package with the Honeywell T6 Pro Programmable Thermostat?

The package includes the T6 Pro Thermostat, UWP Mounting System, Honeywell Standard Installation Adapter, screws, anchors, 2 AA batteries, decorative cover plate, installation instructions, and user guide.

How do I wake up the thermostat’s screen?

Press any of the five buttons on the thermostat to wake up the screen.

How long does the screen stay lit after making changes?

If powered by the C wire, the screen stays lit for 45 seconds after you complete changes. If powered by battery only, the screen stays lit for 8 seconds.

What are the different system modes available on the thermostat?

The different system modes are Auto, Heat, Cool, Em Heat, and Off.

What are the different fan modes available on the thermostat?

The different fan modes are Auto, On, and Circ.

How do I adjust the program schedule on the thermostat?

Press Menu on your thermostat, select PROG, select ON, select day or set of days to edit, select a schedule period to edit (Wake, Away, Home, and Sleep), adjust the schedule period start time and temperature set points using the arrow keys, and press Home when finished to save and return to the home screen.

How do I temporarily override the program schedule on the thermostat?

Press the arrow keys to adjust the temperature to the desired set point temperature. The new set point temperature will be held until the next scheduled time period begins.

How do I permanently override the program schedule on the thermostat?

Press the arrow keys to adjust the temperature, and then press the Hold (Mode) button to change to Permanent Hold.

How do I set the thermostat to display degrees Fahrenheit or Celsius?

Press Menu, select F/C, select F or C, and then press Select.

How do I adjust the keypad lockout on the thermostat?

Press Menu, select LOCK, select OFF, PART, or ON, and then press Select. To unlock the keypad, press the CENTER button and enter the password “1234”.

What is Adaptive Intelligent Recovery on the thermostat?

Adaptive Intelligent Recovery is a feature that “learns” how long it takes your system to reach the temperature you want and turns on the heating or cooling system earlier to make sure you’re comfortable at the time you expect.

What is Built-in Compressor Protection on the thermostat?

Built-in Compressor Protection is a feature that forces the compressor to wait for a few minutes before restarting to prevent damage.

How often should I replace the batteries on the thermostat?

Replace batteries once a year or before leaving home for more than a month.

How do I clear alerts or reminders on the thermostat?

Press Menu, select ALRT, select SNZE to snooze or CLER to clear, and then press Select.

What should I do if I have difficulty with my thermostat?

Check the circuit breaker, power switch for heating and cooling system, furnace door, and batteries. If problems persist, contact Honeywell Customer Care toll-free at 1-800-468-1502 or a local heating and cooling professional.

VIDEO

Company Logo

www.honeywellhome.com

Documents / Resources

Honeywell Home T6 Pro Programmable Thermostat [pdf] User Guide
T6 Pro, Programmable Thermostat
Honeywell Home T6 Pro Programmable Thermostat [pdf] Instruction Manual
TH6320U2008, TH6220U2000, TH6210U2001, T6 Pro, T6 Pro Programmable Thermostat, Programmable Thermostat, Thermostat
Honeywell Home T6 Pro Programmable Thermostat [pdf] User Guide
T6 Pro, Programmable Thermostat, T6 Pro Programmable Thermostat, TH6320U2008, TH6220U2000, TH6210U2001
Honeywell Home T6 Pro Programmable Thermostat [pdf] Installation Guide
T6 Pro, Programmable Thermostat
Honeywell Home T6 Pro Programmable Thermostat [pdf] User Guide
T6 Pro Programmable Thermostat, T6 Pro, Programmable Thermostat, Thermostat
Honeywell Home T6 Pro Programmable Thermostat [pdf] Instruction Manual
TH6320U2008, TH6220U2000, TH6210U2001, T6 Pro, T6 Pro Programmable Thermostat, Programmable Thermostat, Thermostat
Honeywell Home T6 Pro Programmable Thermostat [pdf] User Guide
T6 Pro Programmable Thermostat, T6 Pro, Programmable Thermostat

References

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