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Heating - Thermostat Error message in Mendham, NJ



Thermostat Error message in Mendham, NJ
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Customer states tv room thermostat display is blank and heat is not working. After further inspection found no voltage at wall by thermostat. Found furnace on downstairs with line voltage coming in and low voltage being distributed to control board. Found open 3 amp fuse by interlock switch. Reset fuse and restore low voltage to control board and thermostat.