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I have an old analog honeywell chronotherm thermostat. I am trying to figure out how to program it. It blows heat, but is inconsistent with timing.

Last night it read 70 degrees in the house, yet the heat was blasting. Today, it reads 60 in the house and the heat is inconsistent with coming on. We have never used the programming feature and want to know if it will help. It is a gas furnace.

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: fan on but no heat

I never liked the user un-friendliness of the Chromatherm, I would suggest finding a thermostat that you can understand and operate. Yes the Chromatherm is a good one, but so damned hard to figure out. Stay away from thermostats that still use mercury. Good Luck!

Posted on Oct 21, 2008

  • 96 Answers

SOURCE: Honeywell Chronotherm III puts heat up contrary to programming

sounds like t-stat is going bad

Posted on Jan 06, 2009

  • 252 Answers

SOURCE: need help programing a honeywell thermostat T8095A1002

Go Here: http://yourhome.honeywell.com/Consumer/Cultures/en-US/Support/Thermostat+Wizard/

Posted on Apr 10, 2009

  • 139 Answers

SOURCE: My home too is stuck at 78 degrees with the Chronotherm IV

a/c will only bring temp down about 15 degrees from outdoor temp

Posted on Jun 24, 2009

  • 22 Answers

SOURCE: my furnace keeps running heat increesing 5 degrees

heat anticipator is shorted or broken. if this is the case you must replace the tstat.

Posted on Nov 24, 2009

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