Question about Heating & Cooling
I would change the battery first. Then try adjusting the temperature to see if that has any affect. From here I would guess the temp sensing thermistor is open or short, causing it to indicate the extreme temperature of it's capability. Test the thermistor and replace, or replacing the thermostat are the only solutions. I hope this helps.
Posted on Oct 22, 2013
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Posted on Jan 02, 2017
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