Question about Honeywell Programmable Thermostat Heater
The screen on the thermostat is completely blank. No reading at all and the heat is clearly not on because it's freezing in my house. I have changed the batteries and still nothing changed. Please help me. I live in CT and it is quite cold right now.
One of two things either the disply has gone out which is likely as it is a common failure for that thermostat or your heating unit is not sending control power. the older chronotherms were system (24volt ac) powered the new hardware/box store units are battery powered. Either way display should not be blank with fresh batteries. to get heat on remove the thermostat jumper or twist together the wire from the R terminal with the wire from the W terminal. note the color of each wire for later reference, heat up house disconnect wires from each other and go purchase a new thermostat
Posted on Dec 18, 2008
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Posted on Jan 02, 2017
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