Question about Honeywell Programmable Thermostat Heater

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Thermostat displays 79 deg but really 68 in room

For some reason the room tempature shows 79 deg but the room is 68... Therefore, when I have my settings at 72 it won't turn on since it thinks the room is 79.

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  • gamblejustin Nov 05, 2008

    Honeywell T8001C model by the way

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If the thermostat does not have a reset, replace it.

Posted on Nov 07, 2008

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Posted on Jan 02, 2017

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My thermostat is set on 68 degrees and it shows room temperature is 68, but the furnace still kickson, Honeywell said it has a 1 degree difference. so what's the problem then?


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Buzzing and f2 showing on display panel


Hello,

The F2 error code means that the over overheated by at least 100 degrees above the tempature that was set at the time. The usual reason the oven would over heat by so much is a defective oven tempature sensor and the sensor would need to be tested to see if is the problem to test the sensor it would need to disconnected from the wiring to it and measure the amount of ohms of resistiance AT ROOM TEMPATURE when the oven is off and cool. At room temp. the the meter used to check the sensor should display between 1060-1100 ohms,if the number is vastly different that 1060-1100 at room tempature the sensor is defiently bad and should be replaced. This is what the sensor looks like oldtech2332_129.jpg
it will be inside of the oven chamber and again to properly check it the wiring should be unplugged and the meter leads should be placed into the plug at the end of the sensor to measure the ohms

GENE

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1 Answer

GR448LXPS ERROR CODE E2F3


Hello,

The F3-E2 error code means that the heated well above the setting the tempature was set at. The usual reason the oven would over heat by so much is a defective oven tempature sensor and the sensor would need to be tested to see if is the problem to test the sensor it would need to disconnected from the wiring to it and measure the amount of ohms of resistiance AT ROOM TEMPATURE when the oven is off and cool. At room temp. the the meter used to check the sensor should display between 1060-1100 ohms,if the number is vastly different that 1060-1100 at room tempature the sensor is defiently bad and should be replaced. This is what the sensor looks like oldtech2332_129.jpg
it will be inside of the oven chamber and again to properly check it the wiring should be unplugged and the meter leads should be placed into the plug at the end of the sensor to measure the ohms.
If after checking the sensor if its within the range of 1060-1100 ohms at room tempature the problem is going to be the control board.


I hope i have been able to help ya fix your oven,

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Keeps making ice and fills up bin. I checked the bin thermostat and it is plugged in and does show some resistance. House is not too cold but is about 65-68 deg.


Usually the system continues It's operation when the thermostat is defective,Replace thermostat and check the operation of the system.

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Yes,
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check out this tip to find the manual for your t-stat and then how to get into the installer setup program...

Manual Honeywell How to Find Honeywell Manuals
http://www.fixya.com/support/r3894275-manual_honeywell_find_honeywell_manuals

heatman101

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Remove the window unit and dissasemble,and clean it out,careful not to bend the fins on the condense and evaporator,but clean them out,and the inside of the unit also,then see what happens,if the problem persist,then find the probe on the evaporator and move it away from the evaporator until the compressor stays on longer.

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Chronotherm III displays 32 deg for room temp, which is really around 70 deg. No action called for by the instrument. Batteries had died and replaced. My first guess was the actual temp sensor was...


HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions
If you can’t find what you want, the bottom left and bottom of web
Page, they have homeowners assistance and Home products to get the help you need.

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I can not change the thermostat setting on the unit. Whenever I try to change it, it reverts back to the previous setting.


The thermostat will display the current tempature in the room. When you press the buttons to change the tempature and you see it change back it is probably going back to the room tempature display but still keeping the temp you set it at. Also make sure the "hold" feature is set or the temp you choose can change at different times during the day due to the programmable features built into the thermostat.

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Thermostat issue with comfort zone II.


Is this an electric or gass furnace - Eather of these can can have this problem its most recomendable that you call a seviceman .
in the case of electric furnace you may requier a new heat sequencer. And in the case of gass you may requier a new relay.

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