Question about Honeywell Programmable Thermostat Heater

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Readings disappear on thermostat for awhile then come back

This is a Honeywell nonprogrammable thermostat. This is a vacation home. Temp was set during our absence at 51 degrees. When I visited the house I turned the thermostat up to 64. I happened to look at the thermostat about one-half hour later and the readout was blank- nothing on the dial. Later the numbers came back into view and the heat was working.
Should I worry that the thermostat is not reading the room temp if/when the readout goes blank? W/o heat, the house pipes will freeze. If needed, I'll call a repairman to replace the thermostat unless the readout has nothing to do with the thermostat sensing the temp. This happened once before but it lasted just a few minutes. In both cases when I noted the readout was blank, I did not notice if the heater was running.
Linda

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  • Troy360 Feb 14, 2009

    My house is starting to get cold but the buttons don't work and the numbers dissapeared. Should I be worried?? Or will it come back on all on it's own???

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  • 12 Answers

Hi Linda,

There are a few things that cause this:

  1. When the heat is starting, it will sometimes go blank for a few minutes and then resume.
  2. Most have batteries, replace them with fresh new ones, if the electricity goes out while you are away, the batteries will keep the settings.
  3. Have someone check the house when it is extremely cold or hire a service to monitor. Your alarm company can usually add temperature sensors to your home, it will add a little safety net for you.
Hope this was helpful, please rate my answer.
Thanks,
Paul

Posted on Jan 28, 2009

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