Honeywell Pro Series Thermostat
Honeywell Pro Series ThermostatModel : T6 Pro
Other Honeywell Pro Thermostat Manuals:
- T4 Pro
- T6 Pro
- RTH5160 Non-Programmable Thermostat
- WiFi Touchscreen Thermostat Installation Manual
- WiFi Color Touchscreen Thermostat
- VisionPRO WiFi Thermostat
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 in x11/32 in (121 mm x 121 mm x 9 mm)
- Screws and anchors
- 2 AA Batteries
- Installation Instructions and User Guide
Optional Cover Plate installation
NOTE: If Optional Cover Plate is not required, see “UWP Mounting System installation” on next page.
Use the Optional Cover Plate when:
- Mounting the thermostat to an electrical junction box
- Or when you need to cover paint gap from old thermostat.
- Separate the Junction Box Adapter from the Cover Plate. See Figure 1.
- Mount the Junction Box Adapter to the wall or an electrical box using any of the eight screw holes. Insert and tighten mounting screws supplied with Cover Plate Kit. Do not overtighten. See Figure 2. Make sure the Adapter Plate is level.
- Attach the UWP by hanging it on the top hook of the Junction Box Adapter and then snapping the bottom of the UWP in place. See Figure 3.
- Snap the Cover Plate onto the Junction Box Adapter. See Figure 4.
UWP Mounting System installation - Before starting, turn the power off at the breaker box or switch. Open package to find the UWP. See Figure 5.
- Position the UWP on wall. Level and mark hole positions. See Figure 6. Drill holes at marked positions, and then lightly tap supplied wall anchors into the wall using a hammer.
Drill 7/32” holes for drywall.
- Pull the door open and insert the wires through wiring hole of the UWP. See Figure 7.
- Place the UWP over the wall anchors. Insert and tighten mounting screws supplied with the UWP. Do not overtighten. Tighten until the UWP no longer moves. Close the door. See Figure 8.
Power options
Insert R and C wires into designated terminals for primary AC power (C terminal is optional if batteries are installed, but it is recommended). Remove wires by depressing the terminal tabs.
Insert AA batteries for primary or backup power.
Setting Slider Tabs
Set R Slider Tab
- Use built-in jumper (R Slider Tab) to differentiate between one or two transformer systems.
- If there is only one R wire, and it is connected to the R, Rc, or RH terminal, set the slider to the up position (1 wire).
- If there is one wire connected to the R terminal and one wire connected to the Rc terminal, set the slider to the down position (2 wires).
NOTE: Slider Tabs for U terminals should be left in place for T6 Pro models.
Wiring terminal designations
Note: Not all terminals may be used, depending on the system type that is being wired. The most commonly used terminals are shaded.
- Terminal can be jumped using Slider Tab. See “Setting Slider Tabs” above.
- The THP9045A1023 Wire Saver Module is used on heat/cool systems when you only have four wires at the thermostat, and you need a fifth wire for a common wire. Use the K terminal in place of the Y and G terminals on conventional or heat pump systems to provide control of the fan and the compressor through a single wire—the unused wire then becomes your common wire. See THP9045 instructions for more information.
Wiring conventional systems: forced air and hydronics
Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.
- 1H/1C System (1 transformer)
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor
- C 24VAC common [3]
- W Heat relay
- G Fan relay
Heat-only System
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- C 24VAC common [3]
- W Heat relay
Heat-only System (Series 20) [5]
- R Series 20 valve terminal “R” [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Series 20 valve terminal “W”
- C 24VAC common [3]
- W Series 20 valve terminal “B”
Heat-only System (power open zone valve) [5]
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- W Valve
- C 24VAC common [3]
1H/1C System (2 transformers)
- R Power (heating transformer) [1]
- Rc Power (cooling transformer) [1]
- Y Compressor contactor
- C 24VAC common [3, 4]
- W Heat relay
- G Fan relay
Heat-only System with Fan
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- C 24VAC common [3]
- W Heat relay
- G Fan relay
Cool-only System
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor
- C 24VAC common [3]
- G Fan relay
2H/2C System (1 transformer) [6]
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor (stage 1)
- C 24VAC common [3]
- W Heat relay (stage 1)
- G Fan relay
- W2 Heat relay (stage 2)
- Y2 Compressor contactor (stage 2)
NOTES
Wire specifications: Use 18- to 22-gauge thermostat wire. Shielded cable is not required.
- Power supply. Provide disconnect means and overload protection as required.
- Move R-Slider Tab on UWP to the R setting. For more information, see “Setting Slider Tabs” on page 3
- Optional 24VAC common connection.
- Common connection must come from cooling transformer.
- In ISU set Heat system type to Radiant Heat. Set number of cool stages to 0.
- In Installer Setup, set system type to 2Heat/2Cool Conventional
Wiring heat pump systems
Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.
- 1H/1C Heat Pump System
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor
- C 24VAC common [3]
- O/B Changeover valve [7]
- G Fan relay
2H/1C Heat Pump System [8]
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor
- C 24VAC common [3]
- O/B Changeover valve [7]
- G Fan relay
- Aux Auxiliary heat
- E Emergency heat relay
- L Heat pump fault input
2H/2C Heat Pump System [9]
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor (stage 1)
- C 24VAC common [3]
- O/B Changeover valve [7]
- G Fan relay
- Y2 Compressor contactor (stage 2)
- L Heat pump fault input
3H/2C Heat Pump System (TH6320U only) [10]
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor (stage 1)
- C 24VAC common [3]
- O/B Changeover valve [7]
- G Fan relay
- Aux Auxiliary heat
- E Emergency heat relay
- Y2 Compressor contactor (stage 2)
- L Heat pump fault input
Dual Fuel System
- R Power [1]
- Rc [R+Rc joined by Slider Tab] [2]
- Y Compressor contactor (stage 1)
- C 24VAC common [3]
- O/B Changeover valve [7]
- G Fan relay
- Aux Auxiliary heat
- E Emergency heat relay
- Y2 Compressor contactor (stage 2 – if needed)
- L Heat pump fault input
- S Outdoor sensor
- S Outdoor sensor
NOTES
Wire specifications: Use 18- to 22-gauge thermostat wire. Shielded cable is not required.
- Power supply. Provide disconnect means and overload protection as required.
- Move R-Slider Tab on UWP to the R setting. For more information, see “Setting Slider Tabs” on page 3
- Optional 24VAC common connection.
- In Installer Setup, set system type to 2Heat/2Cool Conventional.
- In Installer Setup, set changeover valve to O (for cool changeover) or B (for heat changeover).
- In ISU set Heat system type to Heat pump. 1 compressor and 1 stage of backup heat.
- In ISU set Heat system type to Heat pump. 2 compressors and 0 stage of backup heat.
- In ISU set Heat system type to Heat pump. 2 compressors and 1 stage of backup heat.
Thermostat mounting
- Push excess wire back into the wall opening.
- Close the UWP door. It should remain closed without bulging.
- Align the UWP with the thermostat, and push gently until the thermostat snaps in place.
- Turn the power on at the breaker box or switch.
System operation settings
- Press the Mode button to cycle to the next available System mode.
- 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
- Press the Fan button to cycle to the next available Fan mode.
- 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: Fan runs randomly about 33% of the time.
Installer setup (ISU)
- Press and hold CENTER and + buttons for approximately 3 seconds to enter advanced menu.
- Press Select to enter ISU.
- Press Select to cycle through menu setup options.
- Press + or – to change values or select from available options.
- Press Select and confirm your settings or press Back to ignore changes and return to ISU menu screen to continue editing another setup option.
- To finish setup process and save your setting, press Home and return to Home screen.
NOTE: A complete list of all setup (ISU) parameters and options starts below and continues through page 10.
Advanced setup options (ISU)
NOTE: Depending on system settings, not all options may be available.
Installer system test
To perform a System Test:
- Press and hold CENTER and + buttons for approximately 3 seconds to enter advanced menu.
- Use + to go to TEST. Press Select to enter System Test.
- Use + to change between Heat, Cool, Fan, Em Heat, or Ver (thermostat version information). Press Select.
- Press + to turn stages on one at a time, and press – to turn them off.
- Use the Home button to exit the System Test.
System test System status
Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.
Default security code
The default security code for the Honeywell Pro Series thermostat is 1234
Heat
0 All Off
1 Heat Stage 1 on
2 Heat Stage 2 also on
3 Heat Stage 3 also on
Cool
0 All Off
1 Cool Stage 1 on
2 Cool Stage 2 also on
Em Heat
0 All Off
1 Em Heat on
Fan
0 Fan Off
1 Fan On
Specifications
Temperature 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)
Working Ambient Temperature
32 °F to 120 °F (0 C° to 48.9 °C)
Operating Ambient Temperature
37 °F to 102 °F (2.8 °C to 38.9 °C)
Shipping Temperature
-20 °F to 120 °F (-28.9 °C to 48.9 °C)
Operating Relative Humidity
5% to 90% (non-condensing)
Physical Dimensions in inches (mm) (H x W x D)
4-1/16” H x 4-1/16” W x 1-5/32” D
103.5 mm H x 103.5 mm W x 29 mm D
Electrical Ratings
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before
beginning installation.
CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.
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.
Pull to remove the thermostat from the UWP
Customer assistance
For assistance with this product, please visit customer.honeywell.com
Or call Honeywell Customer Care toll-free at
1-800-468-1502.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark.
© 2016 Honeywell International Inc.
33-00181EFS—01 M.S. 06-16
Printed in U.S.A.
Printed in U.S.A.
SPECIFICATION
| Product Name | Honeywell Pro Series Thermostat |
|---|---|
| Model | T6 Pro |
| 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 in x11/32 in (121 mm x 121 mm x 9 mm), Screws and anchors, 2 AA Batteries, Installation Instructions and User Guide |
| Optional Accessories | Cover Plate |
| Wiring Terminal Designations | Conventional systems, Heat-only systems, Heat-only systems with fan, Cool-only systems, and Heat pump systems |
| Power Options | Primary AC power or AA batteries for primary or backup power |
| System Operation Settings | Auto, Heat, Cool, Em Heat, Off |
| Fan Operation Settings | Auto, On, Circ |
| Installer Setup (ISU) | Advanced setup options for system type, changeover valve, and heat system type |
| Advanced Setup Options (ISU) | Heat system type, number of cool stages, and radiant heat system type |
| Installer System Test | Heat |
| Default Security Code | 1234 |
FAQS
Yes, but “System Changeover” in the ISU menu must be changed from the default value of 0 (“Manual”) to 1 (“Automatic”), then “Auto” can be selected as one of the operating modes using the “Mode” button.
Yes, it’s a low-voltage (24 VAC) thermostat, compatible with the vast majority of forced air HVAC systems.
No goes by cycles per hour you program in , This is a smart stat, adjusts itself to maintain that 3 degree swing. Gas or Oil 3-5 times a hour is good, heat pump 5-7 times a hour
no. need a wifi stat for that. But is a good thermostat.
This thermostat does not have a wifi connection it will not work with Alexa, phone, or any device. It must be programmed on the thermostat itself by pushing buttons although it is digital. It’s a very nice thermostat and works great.
A couple of possible and easy to address reasons. First, you may have the fan set to “circulate”, which means the thermostat turns the furnace blower on periodically to circulate air throughout the home. If so, set the fan to “auto” on the front of the thermostat. Second possible reason, you may have an separate air circulation system hooked to the furnace fan to circulate and introduce fresh air into the home. This system is common in newer, sealed, homes built in past 15 or so years. If so, check to see what the programmed schedule for this separate device (typically mounted to the exterior of the furnace) is set to operate and adjust if desired.
I had to use touch up paint because the thermostat is smaller than the previous one and I had painted the room after moving in my home.
If by dual fuel you mean one source for heat and a different source for A/C, then yes. I have gas heat and electric air on two separate units and have this thermostat controlling both units.
2-programs per day or 4-programs per day, or no programs per day adjustable for 5-1-1, or 5-2days, as far as off and on, can not do that just to the lowest, or highest temp.
T4 is a basic stat that works on batteries or 24vac, it is no programmable good for milli volt fireplaces, or furnaces. T5 does not have emergency heat for heat pumps, t6 has programming capability select able requires 24 vac from furnace. still has batteries just to maintain setback programs
Absolutely YES. Everything is returnable. — If dealing with a shady company, then you may have to pay the return shipping and file a claim with your credit card company, to have your money refunded, but credit cards are a CONSUMER PROTECTION device, so that’s why we use them 🙂
Sometimes annoying. To change one time, cycle or temp program, you have to go through too many program changes. For instance you have to go through separate ac, and heat programs for each step. Temporary or locked permanent temperature changes however are easy.
t6 lyric
The package includes the thermostat, UWP mounting system, Honeywell standard installation adapter, decorative cover plate, screws and anchors, and 2 AA batteries.
The wiring terminal designations are provided for conventional systems, heat-only systems, heat-only systems with fan, cool-only systems, and heat pump systems.
The default security code for the Honeywell Pro Series thermostat is 1234.
The Optional Cover Plate is used when mounting the thermostat to an electrical junction box or when you need to cover paint gap from old thermostat.
Before starting, turn the power off at the breaker box or switch. Position the UWP on the What is the purpose of the Installer system test?wall. Level and mark hole positions. Drill holes at marked positions, and then lightly tap supplied wall anchors into the wall using a hammer. Pull the door open and insert the wires through the wiring hole of the UWP. Place the UWP over the wall anchors. Insert and tighten mounting screws supplied with the UWP. Do not over-tighten. Tighten until the UWP no longer moves. Close the door.
The available System modes for the thermostat are Auto, Heat, Cool, Em Heat, and Off.
The available Fan modes for the thermostat are Auto, On, and Circ.
Press and hold the CENTER and + buttons for approximately 3 seconds to enter the advanced menu.
The Installer system test is used to test the heating and cooling systems to ensure they are working properly.
Video
2 things.
1. The Auto system mode doesn’t show up. How can I get it there?
2. I’m inadvertently switching from permanent hold to temporary hold but I can’t figure out how.
This thermostat is too complex, designed to generate service calls?
We are having the same constant issue after our power went out
How/when is Emergency Heat used?
Emergency Heat is used when the outside temperature is too cold for the heat-pump system to work. (<20 degrees F, depending on the system)
It can also function if the heat-pump system has suffered a failure.
HOW DO I SWITCH FROM TEMPORARY HOLD TO PERMANNT HOLD
How do I get the unit too say permanently hold. It went away when I was messing with it . I can’t get it back .
Thermostat not working. No power. Screen is blank. Was working a few days ago. Circuit breakers not tripped.
My unit has a battery. Does yours? If so, battery might be dead. It’s worth checking.
I am not able to unlock help
I am not able to unlock help
See the 4 numbers in the back, get those and add 1234 and it should unlock it. For ex: 1111+1234=2345
Just use 1234
I am not able to unlock help
Can I over ride the heat pump to emergency heat even though it’s 40 degrees outside.
How do I turn off recovery mode? Cant seem to find a preference button
Can’t go from Celsius to Fahrenheit.
What does em heat mean
EM Heat refers to ‘Emergency Heat’ – it engages the built-in electric heater when the more efficient ‘heat-pump’ is not working or it is too cold to efficiently use the heat-pump. Under non-EM-heat conditions, your heater runs the air conditioner in reverse to provide efficient, low-cost heat. When the temperature is below 25 to 30 degrees outside, you may need to use the EM heat option.
How do I turn my heat on??
Good evening, some of the screen options are missing how can I get it back?
Also how can I turn on the heat?
What do you it mean when you see a warning sign on your thermostat, Honeywell pro series
Cant unlock, please help
I thought programmable thermostat would allow setting daily temperature ranges for different time ranges during the day, but honeywell home pro series doesn’t offer that???
It does, you have to use the advance setup potion in your manual and change the schedule setting to 7 day programmable.
Heat doesn’t send out hot air unless the water is running? Not sure what the issue could be. Sometimes “Heat On” blinks and shits down, sometimes it just stays solid And sends out cold air.
You may want to try EM-Heat mode. If there is a failure with your heat-pump system, EM heat mode will work to provide heat via electric direct heating — though this can be more expensive to run all season.
my daughter did some sort of reset on my central air/heating, its asking me to input a number. what would be a good number to set up the system to set and run heating and cooling manually?
1234
When I have it in cool mode it won’t let me go lower than 67 why is that
I am unable to unlock system
Did some research the default code is 1234
Tried it an worked
Strange no one answered
Thank you sooo much
I tried that and it didn’t work. I tried 1111. That didn’t work either. HELP!
Hi Greg, I am also unable to unlock, I see no screen to enter 1234 to unlock. How do I enter these numbers. Your help is appreciated, Joanne
How do you open to replace batteries?? Also, had a power outage for 3.5 hours does that require resetting anything?
I have the same question. Did you ever get an official answer?
crd
From my manual: “When the low battery warning appears, press gently to loosen the thermostat and then carefully pull it from the wall mount. Insert fresh alkaline AA batteries and reinstall thermostat” I just did this. Pull unit from wall mount. Batteries are in the pulled off unit. Replace and push back on. What is not mentioned is then you need to run through the SELECT cycles. No need to change them, just run through them. It’ll go into “SAVE” and you should be done. Hope this helps.
See my answer to Janet below.
I have same question Jim. How do I open to change batteries. Did you get answer-don’t want to break something.
How do I turn off recovery mode on Honeywell proseries?
Fan set to auto, but runs all the time. The only way to turn fan off is shut system down.
This is my question too. Why is it running all the time? There must be a way for it to establish the temperature and then turn itself off.
Kind of new to the heat pump and the thermostat.
Which is the best most energy-efficient way for the
fan to be used.Auto or circulation?
My Honeywell ProSeries digital thermostat reads “Temporary Hold”; what is this and how do I get rid of it?
Temporary Hold indicates the thermostat is temporarily holding the custom set temperature. After a period, it will return to the scheduled temperature.
How can you keep it on temp hold and not revert back to a previous setting
Thermostat will not change system to cool
This is a brand new Coleman furnace with the Honeywell Home Pro Series thermostat. For some reason, the furnace is constantly running all the time. We set it to a set temperature and it will not stick. The furnace will run for about five minutes, stop for about 90 seconds, and then kick back on. This happens ALL DAY LONG.
Is there a mode that I’m missing where it will just stay as is? I’m concerned something is wrong. The heat works fine; the furnace just won’t stop.
Ours is set at 70. Our heat pump runs 8 mins ON then shuts OFF for 12 min and this cycle runs 24hrs a day and the thermostat doesn’t change from 70.
How do you turn the fan off?
I have two Honeywell thermostats in the house (one upstairs and one downstairs). The upstairs heat is working, but the downstairs heat won’t kick on when it should. Any recommendations for how to troubleshoot?
There should be a button below the word ‘fan’ on the display, press it and it should toggle the selections..Fan Auto, Fan On and Fan Circ’…choose Fan Auto…this way the fan only comes on whenever the system calls for heat or a/c…’Fan On’ means the fan will run continuously.
Do any of these questions ever get answered??
Why does the system run when on Fan Auto and the room temperature is cooler than the thermostat setting? I have never had a thermostat operate this way.
Can someone tell me if it is necessary to connect the transformer or just with the batteries it closes in contact?
alguien me podra decir si es necesario conectar el trafo o solo con las pilas cierra en contacto?
Heat cool letters to small can be larger
How can I turn off the air, it makes full ice
Como puedo apagar el aire hace full hielo
I have a triangle with an “!” In the middle of it on the screen and a low batter signal. Changed batteries and it stayed. Any idea what to do next? Honeywell pro series with 3 buttons on the front.
I have the same problem did you get a fix for it.
I got the same issue with new batteries. I have removed both batteries at the same time, this erased some internal values, such as time/date. However, when I put the batteries back, the alert stopped. so much for functionality.
What does it mean when “recovery “ is on panel? How do you remove it?
My question also!!
My Honeywell pro is off by 3 degs. from actual temp. How do I reset the thermostat?
What setting will bring outside cold night air inside?
How do l change the batteries?
Heat is not coming on temperature shows 19 I set it up to 23 but the heat didn’t come on i have Honeywell proseries thermostat please help thank you
I have a brand new (just built our home and moved in 4 mths ago) Honeywell Pro Series No numbers like Pro 6 or 4, Just Pro Series). Went to turn on the AC, as it’s getting hot in TX now and it has a PIN number on it. We have no idea what it is nor how to take it off. We’ve read ALL of the directions on google on how to bypass the PIN numbers and none have worked. Last nite it was 86 in our bedroom. Its supposed to be hotter tonite. U have no support phone number. Can u please tell me how to either turn off the pin number, bypass it, or start fresh? Can u give me ur support phone number so you can walk me thru it? Again, the thermostat has no numbers (as in 6 or 4, its just plain Pro Series), so please don’t give us the directions on that thermostat)
1234
What is temporary hold and how do I turn it off?
If I performed a factory reset on my t6 and now my air will not turn on on AUTO, I have to set it on ON to get cool air. What can I do to fix that?
Above “Fan On or Fan Auto”, a triangle with exclamation point has appeared. I have only had this thermometer 8 months. Must be an error, but what dies it mean?
Just got the same error.
How do I unlock?
If I look in the back of the cover the 4 numbers are 1951
If I add 1234 the number is 3185
then what I do??
How should I enter this number and where??/
Thanks
Cant get my air on please help baking in here
I have a Pro Series. It’s locked. No idea what the pin # is. I tried 1111 and 1234 as previous suggestions. I cannot take the cover off to find any info there. Can anyone help?
I have the Honeywell Pro Series and the Fan is on Auto but continue to run all day please help to set this thermostat Please. What do I need to to correct this problem?
Is there some way to calibrate the temperature sensor? The display (and corresponding actions) reads 3-4 degrees higher than the other thermometers I use for comparison.
Why is the cool blowing downstairs and not upstairs?
What is used as the “include” button? I am trying to reconnect with ADT.
Somehow our thermostat is locked and asking for a pin number. I’ve tried all the ones suggested above and no joy. If I take the batteries out will that allow me to reset? (My husband has Alzheimer’s and I’m afraid that he’s tried to change the temperature and inadvertently set a pin which he, of course, doesn’t remember.)
Update: I read Nazir Memon’s comment above and decided to try the same. The only 4 digit number on the back was 1925, I added 1234 to it, got 3159, put the thermostat box back on the wall, touched the screen, it asked for the pin, I entered the 3159 and we’re back in business!
just try 1234< it worked for me
What does it mean when the cool on is blinking?
Why does ac work from 10 at night to 10 in the morning. ac seems to cut off half time each day. Is it programmed that way?
I have a ! Inside a triangle beside my temperature setting, is that normal?
Thank you
I thought fan only meant the ac is not runing only the fan. Mine says fan only. Is this correct?
I can’t unlock, the menu button dose not show. Please help
We have an error message in the shape of a triangle. What’s this mean.
WTF mine is locked up and won’t go to the home menu
Great Information, setup from locked, with dead battery to completely programed in a matter of a couple minutes. Thanks Good Job
My thermostat is locked, no button works, it’s a model TH6220U2000
SERIAL 2034JE322023
Mi termostato esta bloqueado, ningun boton funciona es u modelo TH6220U2000
SERIAL 2034JE322023
My thermostat is a TH6220U2000 and it does not work it only appears on the screen 2021 and the word select but does it do anything else, your help please
Mi termostato es un TH6220U2000 y no funciona solo aparece en la pantalla 2021 y la palabra select pero ko hace nada mas su ayuda por favor
I have 3 half circles on the upper right side with a small x. What does that mean. Air is not working.
I am getting “Temporary Hold” showing up on my screen. I don’t know how it got there, something I did wrong I’m sure, but it’s effecting the heat/cool cycles. How do I get rid of it and get my equipment working properly again? I had no issues for several months until this started a few days ago.
I have a symbol next to the A/C temperature, a small triangle with a 1 in it. What does that mean. I just had my A/C put in a month ago is something wrong with it.
I have a small triangle with a 1 in it next to A/C temperature. I have a Pro Series. I just installed my new A/C a month ago. Is something wrong
Cool won’t go below 68 how do I fix this?
Need answer abt the small yellow triangle with exclamation mark inside it. What are we supposed to do about it?
On a T6 2/H 2/C What enables the Y2 on my second stage cooling? Is it based on lowering the cooling setpoint or based on a time demand in the amount it has been cooling?
Icannot unlock my thermostat, I have tried 1111, 5555, 1234, and 1915(number on the back of thermostat) + 1234 and none of them works. After putting in a code what to do next?
I have triangle with an ! What does that mean
What is causing the “peep peep.” I have changed the batteries, but the high pitched “peep peep” continues.
How do you get heat to work
Hi! My 11 yr old was trying to put the heat on with my honeywell inside unit. The heat was working fine, since she messed with it my inside unit is not turning on my heat pump. What do I do? It’s only 2 years old. Help.
Just had the Honeywell Home Pro Series thermostat installed yesterday. Mother in Law is stating the temperature is set at 71. The unit is running but never heats the home to 71. Please advise on issue.
My fan won’t shut off it keeps running even if it’s on auto. I have heat and air both off. Why doesn’t fan stop??? Help
I am not able to unlock. Help. What steps I should take to get the bottom panel to show the basic 4 bottom buttons?
Cannot unlock. Need help in walking me thru the step to get my bottom panel to displace the normal 4 buttons at the botton. Thanks!
Is this thermostat programmable? For example, can I program the ac to 73 degrees from 7 am to 10 pm and then from 10:01 pm to 6:59 67 degrees.
You may have been able to make it more difficult to program, but I’m not sure how. This is masterful obfuscation.
How do I reset the recovery mode
My screen is blinking 2021 and select but no buttons work n my house is cold
The letters BATT are on the screen. I thought the battery was just for backup. What does this mean?
My ‘fan’ is constantly running even on ‘Fan Auto’…is there a way to ‘reset’ it so it will stop?? My electric bill is going to be so badddddddd
Our thermostat is blowing cold air when we turn on heat. Fan is on auto