It's a newly installed thermostat, it ran for 2 hours without turning off,didn't get really warm in the house, it was on 80 degrees according to the setting inside, so I just turned it off.
SOURCE: Honeywell digital thermostat won't turn off ac.
The Honeywell CT87 thermostat is a normal round thermostat, not digital and may have a sub-base installed with it that has a two switches on it. One is for Fan (Auto or On)and the other is for Heat, Cool and Off. Make sure the Fan switch is in the Auto position and the other switch is in either the Cool or Off mode. If you continue to get cooling, you have a short in the thermostat wire or a stuck relay in th indoor or outdoor unit. To test this, while the unit is running; remove the round outer ring on the thermostat by pulling it straight off towards you. You will find 3 slotted head screws that hold the thermostat to the sub-base. These screws are located at the 3 o'clock, 7 o'clock and 9 o'clock positions. Turn these screws counterclockwise with a small head screwdriver. They are held in place so should not fall and get lost. With the front of the thermostat removed from the base, the air conditioner should stop running. If the unit continues to run, you will need to have your A/C system inspected by a technician. If in fact your thermostat is digital, look to see how it is mounted to its sub-base and remove it. If the system stops, you may have a bad thermostat or the Fan switch is in the On position. Hopefully this will help.
SOURCE: heat pump auxiliary heat does not turn on
Turn up your outside thermostat in the outside unit.
You should have about 3 degrees difference in one stage to the next. So I would change the thermosat with one that has three stages of heat.
SOURCE: with new digital thermostat furnace runs every 10 min.
You did not say what model you use. Depending on the model , there might be setting for 'deadband' or 'system type'. Changing that value will affect when it turns on. If it switches on that frequently and the room feels comfortable, it might be that your thermostat is placed on wrong place - one which cools of quickly, or there is draft cooling it off. Digital thermostats have a 'learning period' and adjust to dynamic of the room.
SOURCE: Replaced mercury thermostat w/Honeywell CT87K - doesn't work!
You need a specific thermostat for a Wall Furnace it is a Millivolt Thermostat and not a 24v standard thermostat....usually it will work anyway however if the powerpile (generator produces millivolts from the pilot light) is weak it may not be producing enough...or the Pilot light may be dirty and lazy...won't produce enough millivolts ...or you can have bad or dirty contacts or connections....or a combination of any of the above.....a 24v Thermostat and particularly a non-mercury thermostat has too much resistance in it for a millivolt system....as your Wall Furnace (other than the fan) runs on less than 1 volt
SOURCE: Honeywell RTH2310 thermostat temp variance
Hi,
Yes you can change that by change the number of cycles per hour that your t-stat looks from for youe furnace. Lower the cycles per hour number and it will increase the range.
You can see how to do it here
http://dl.owneriq.net/3/39359643-dfda-451d-bb81-828eecddd9fc.pdf
I hope that this will help you to solve your problem!
Thanks for using Fixya!!
Heatman101
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html
If wire is bad between upper and lower parts of water heater, and water heater has tight-fitting 2" foam insulation, it usually indicates water heater replacement.
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