Question about Honeywell CT87B ROUND HEATING&COOLING MECHANICAL THERMOSTAT - WHITE Heater

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Have a round automag thermostat

Temp is set to 50 degrees....it is eighty in here....help!!

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SOURCE: Rinnai rce-606tra II -- temperature is wrong

move thermister probe higher on back of unit

Posted on Mar 10, 2008


Accurate Joe
  • 61 Answers

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.

Posted on Nov 30, 2008

  • 11 Answers

SOURCE: I have a new Honeywell Round Non-Programmable Heat

Make sure the switches on the back of the thermostat is set for hot water heat. If you have more then 1 zone you may a stuck zone valve or a short in the wiring somewhere keeping the boiler on.

Posted on Apr 02, 2010

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My Trane thermostat (TCONT600AF11MAA) is supposed to have 1.5 degrees of heat pump "rest" above the desired setting before turning on the heat pump. The thermometer reading does not change yet...


Friend! All thermostat is calibrated to cut in and cut off at the end of - or + 1 degree end.
Example: If you set 23 degree, it will cut off in 21 degree and cut in @25 degree. So accordingly you set the temp.
Secondly, don't set temp near to your room temp.Minimum difference should be 3 degree. If your room temp 12 degree, set at least 15 degree for heat and if room temp 28, set at least 25 degree for cool.
Hope it's helpful?

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1 Answer

I have a Honeywell programmable Thermostat (an expensive one that handles humidity, etc) and every spring and fall the thermostats behave improperly by ignoring the programmed temperature and cooling the...


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I have a new Honeywell Round Non-Programmable Heat Only thermostat MFG # T8775A1009. I turned it down to 50 degrees. The room temp. is reading 70 degrees and heat is coming out of my baseboards. Why is...


Make sure the switches on the back of the thermostat is set for hot water heat. If you have more then 1 zone you may a stuck zone valve or a short in the wiring somewhere keeping the boiler on.

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1 Answer

I have a frigidaire stove that heats to 50 degrees hotter than the know setting. Can it be adjusted to read correctly?


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1 Answer

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1 Answer

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