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How do I change the temperature range on a Honeywell TH8110u1003 thermostat. The range now won't let me go below 77 in AC mode.

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Try adjusting the heat range up. Set it a 77 then try the cool.
I believe the Honeywells have a max range between cool and heat.
also sometimes there is a lock out code on them you'll need the book.
Good luck

Posted on May 20, 2008

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My thermostat showing on screen 76F when really room temperature is 70F and I HAVE MEASURED PROPER room sensor resistance OHMS to real room temperature. Why thermostat showing higher temperature and n


Where is the thermostat in relation to the return? Is there air flow or is the air stagnant in the area of the thermostat. Have you placed a thermometer in varios locations where the thermostat is located? Try these locations and see if the thermostat needs to be placed in a location better able to reflect room temperature. Also how long have you lived in the house? If it is a newer home I suggest that you contact the builder or the air conditioner/heater installer to see if they have a schematic of the placement of the thermostats.

Nov 25, 2014 | Honeywell TH8110U1003 VisionPRO 1H/1C...

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Honeywell th8110u1003


The Honeywell TH8110U1003 thermostat is a universal programmable thermostat that gives you electronic control of 24V AC heating and cooling systems. It also has the capability to be used on 750mV heating systems


a68f8c0.jpg

One of the best features of this thermostat is it’s big clear backlit display. The current temperature, the set temperature and the date/time of day are displayed at all times. Simply touching the screen also activates the back light feature.

This digital thermostat has a menu programming guide the helps you through the process of setting up your schedule. You are able to select multiple days and customize the thermostat for any kind of unique schedule you may have. This thermostat also let’s you take it off the wall and still be able to program it. This lets you watch TV and program it at the same time.

There are built in backups that will hold the time for you if the power goes out. This t-stat will also update for daylight savings time. There are HOLD features that allow you to modify your program and hold it and then go back to the original.

Change reminders that are built in include the air filter, UV light, humidifier service and of course the batteries of the thermostat. The blower of you furnace can also be programmed to run extra to help increase the air quality in your home.

If you decide you want to know the outdoor temperature you can purchase an additional sensor and then hook it to you thermostat. The outdoor temperature will then be displayed on you thermostat. This feature also gives you the capability of using the sensor to monitor indoor temperatures remotely.

This thermostat will keep you very comfortable as the variation typically in temperature from set point is less than 1 degree F. The thermostat after a period of time learns the characterizes of the way the house or building heats and cools and then adjusts to get the most efficient operation of the heating or cooling system while maintaining a very close temperature tolerance.

By changing a few of the parameters in the thermostat this can be can be configured for either single stage conventional heat/cool systems or any single stage heat pump system.

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http://www.fixya.com/support/r3892721-programmable_honeywell

on Jan 17, 2010 | Heating & Cooling

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The Honeywell TH811U1003 thermostat is a universal programmable thermostat that...


The Honeywell TH811U1003 thermostat is a universal programmable thermostat that gives you electronic control of 24V AC heating and cooling systems. It also has the capability to be used on 750mV heating systems

One of the best features of this thermostat is it’s big clear backlit display. The current temperature, the set temperature and the time of day are displayed at all times. Simply touching the screen also activates the back light feature.

8787bd3.jpg


This thermostat has a menu programming guide the helps you through the process of setting up your schedule. You are able to select multiple days and customize the thermostat for any kind of unique schedule you may have. This thermostat also let’s you take it off the wall and still be able to program it. This lets you watch TV and program it at the same time.

f50b51b.jpg

There are built in backups that will hold the time for you if the power goes out. This t-stat will also update for daylight savings time. There are HOLD features that allow you to modify your program and hold it and then go back to the original.

Change reminders that are built in include the air filter, UV light, humidifier service and of course the batteries of the thermostat. The blower of you furnace can also be programmed to run extra to help increase the air quality in your home.

If you decide you want to know the outdoor temperature you can purchase an additional sensor and then hook it to you thermostat. The outdoor temperature will then be displayed on you thermostat. This feature also gives you the capability of using the sensor to monitor indoor temperatures remotely.

This thermostat will keep you very comfortable as the variation typically in temperature from set point is less than 1 degree F. The thermostat after a period of time learns the characterizes of the way the house or building heats and cools and then adjusts to get the most efficient operation of the heating or cooling system while maintaining a very close temperature tolerance.

By changing a few of the parameters in the thermostat this can be can be configured for either single stage conventional heat/cool systems or any single stage heat pump system.


Specifications of the Honeywell TH8110U1003 Thermostat
  • Description: VisionPRO Touchscreen 7-Day Programmable 1 Heat/1 Cool
  • Conventional and Heat Pump Thermostat
  • Application: Gas, Oil or Electric; Heat Pump; Millivolt
  • Programmability: Universal Programming from 7 Day to Non-Programmable
  • Changeover: Auto or Manual
  • Color: Premier White
  • User Interface: Touchscreen
  • Switch Positions (System): HEAT-OFF-COOL-AUTO
  • Switch Positions (Fan): AUTO-ON
  • Power Method: Battery or Hardwired
  • Terminal Designations: R, RC, C, W (O/B), Y, G, S1, S2
  • Dimensions (in.): 4 9/16 in. high x 6 in. wide x 1 1/4 in. deep
  • Mounting: Horizontal
  • Electrical Ratings: 20 to 30 Vac
  • Frequency: 60 Hz. 50 Hz
  • Setting Temperature Range (F): Heat: 40ª F to 90ª F. Cool: 50ª F to 99ª F
  • Setting Temperature Range (C): Heat: 4.5ª C to 32ª C. Cool: 10ª C to 37ª C
  • Differential Temperature (F): 1ª F
  • Differential Temperature (C): 0.5ª C
  • Stages: Up to 1 Heat/1 Cool
  • Outdoor Sensor: Yes, optional outdoor or indoor remote
  • Remote Sensor: Yes, optional outdoor or indoor remote
  • Sensor Element: Thermistor
  • Currents (Heating): 1.0 A running
  • Currents (Cooling): 1.0 A running
  • Currents (Fan): 0.6A running
  • Operating Humidity Range (% RH): 5 to 90% RH, non-condensing
  • Comments: Selectable to and Heat Only or Cool Only
  • Features: Screen lock


on Jan 15, 2010 | Hardware & Accessories

1 Answer

My thermostat when prgrammed and set on "auto" mode kicks on heat when temp drops below set temperature. The problem is that after warming up to that temperature...it does not shut the fan off. ...


I have a honeywell TH8320U thermostat and American standard Air handler with heating unit put in. THE thermostat works fine with the ac and follows the programs I have set. However the heat is a different story. The thermo clicks on to follow program but the unit does not run. (auto settings) If I place the thermo in heat and turn it to on I get heat?

Dec 08, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Mystery message "wait" appears above "following schedule" display line on our Th8000. Ac does not come on even when temperature is in range. Fan operates ok. Is "wait" setting one I can reset? Maybe a...


Mystery message "wait" appears above "following schedule" display line on our Th8000. Ac does not come on even when temperature is in range. Fan operates ok. Is "wait" setting one I can reset? Maybe a compressor issue rather than thermostat? Thanks

Jun 21, 2010 | Honeywell Electronic Programmable...

Tip

Th811u1003


The Honeywell TH811U1003 thermostat is a universal programmable thermostat that gives you electronic control of 24V AC heating and cooling systems. It also has the capability to be used on 750mV heating systems

One of the best features of this thermostat is it’s big clear backlit display. The current temperature, the set temperature and the time of day are displayed at all times. Simply touching the screen also activates the back light feature.

This thermostat has a menu programming guide the helps you through the process of setting up your schedule. You are able to select multiple days and customize the thermostat for any kind of unique schedule you may have. This thermostat also let’s you take it off the wall and still be able to program it. This lets you watch TV and program it at the same time.

There are built in backups that will hold the time for you if the power goes out. This t-stat will also update for daylight savings time. There are HOLD features that allow you to modify your program and hold it and then go back to the original.

Change reminders that are built in include the air filter, UV light, humidifier service and of course the batteries of the thermostat. The blower of you furnace can also be programmed to run extra to help increase the air quality in your home.

If you decide you want to know the outdoor temperature you can purchase an additional sensor and then hook it to you thermostat. The outdoor temperature will then be displayed on you thermostat. This feature also gives you the capability of using the sensor to monitor indoor temperatures remotely.

This thermostat will keep you very comfortable as the variation typically in temperature from set point is less than 1 degree F. The thermostat after a period of time learns the characterizes of the way the house or building heats and cools and then adjusts to get the most efficient operation of the heating or cooling system while maintaining a very close temperature tolerance.

By changing a few of the parameters in the thermostat this can be can be configured for either single stage conventional heat/cool systems or any single stage heat pump system.

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  • Description: VisionPRO Touchscreen 7-Day Programmable 1 Heat/1 Cool
  • Conventional and Heat Pump Thermostat
  • Application: Gas, Oil or Electric; Heat Pump; Millivolt
  • Programmability: Universal Programming from 7 Day to Non-Programmable
  • Changeover: Auto or Manual
  • Color: Premier White
  • User Interface: Touchscreen
  • Switch Positions (System): HEAT-OFF-COOL-AUTO
  • Switch Positions (Fan): AUTO-ON
  • Power Method: Battery or Hardwired
  • Terminal Designations: R, RC, C, W (O/B), Y, G, S1, S2
  • Dimensions (in.): 4 9/16 in. high x 6 in. wide x 1 1/4 in. deep
  • Mounting: Horizontal
  • Electrical Ratings: 20 to 30 Vac
  • Frequency: 60 Hz. 50 Hz
  • Setting Temperature Range (F): Heat: 40ª F to 90ª F. Cool: 50ª F to 99ª F
  • Setting Temperature Range (C): Heat: 4.5ª C to 32ª C. Cool: 10ª C to 37ª C
  • Differential Temperature (F): 1ª F
  • Differential Temperature (C): 0.5ª C
  • Stages: Up to 1 Heat/1 Cool
  • Outdoor Sensor: Yes, optional outdoor or indoor remote
  • Remote Sensor: Yes, optional outdoor or indoor remote
  • Sensor Element: Thermistor
  • Currents (Heating): 1.0 A running
  • Currents (Cooling): 1.0 A running
  • Currents (Fan): 0.6A running
  • Operating Humidity Range (% RH): 5 to 90% RH, non-condensing
  • Comments: Selectable to and Heat Only or Cool Only
  • Features: Screen lock

on Jan 15, 2010 | Heating & Cooling

2 Answers

Honeywell th8110u1003 touch screen frozen working but cant adjust at all


It sounds "locked". Refer to the installation/setup manual that came with the tstat for information on how to lock and unlock the thermostat.

Apr 06, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

How do you reset a honeywell th8110u1003 thermostat honeywell 800 # will not tell me but he said it needed to be reset because off ee code on screen


http://www.pexsupply.com/Honeywell-TH8110U1003-VisionPro-Thermostat-1-Heat-1-Cool-3909000-p YOU MAY FIND THE ANSWER HERE BUT IF NOT YOU CAN FIND IT RESET BUTTON IN THE (FURNACE?) UNIT. THE REASON HONEYWELL WILL NOT GIVE THE INFORMATION IS BECAUSE THIS CONDITION USUALLY MEANS THERE IS A PROBLEM IN THE SYSTEM AND GAS IS NOTHING TO FOOL AROUND WITH. FYI HAVE YOUR IGNITER CHECKED OUT.

Mar 05, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Improper Termperature Readings during AC run


personally i'd just replace the thermostat, but try pulling the front panel off and look on the circuit board and see if there is a jumper for F/C or any other settings. you may try changing its position. you can also remove the batteries for 15 minutes and see if it resets itself. the only other thing it could be is a wiring issue.

May 29, 2009 | Heating & Cooling

1 Answer

How to program Honeywell thermostat for remote sensor


Remote Sensor (Setup Function 0340): If an optional outdoor sensor is installed, the thermostat can display the outside temperature. If an optional remote indoor sensor is installed, the thermostat will display the temperature at the sensor location (the internal sensor in the thermostat is not used).
\ 0 No remote sensor
1 Outdoor sensor (display only)
2 Outdoor control sensor (select heat pumps

Dec 31, 2008 | Honeywell Heating & Cooling

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