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View Full Version : White-rodgers thermostat help[?


alfeyy
Mar 12, 2011, 08:15 AM
I replaced the batteries in thermostat model white -rodgers #1f80-51 and now my heater pre heats but won't firewh

T-Top
Mar 12, 2011, 02:20 PM
Changing the batteries in you thermostat will not be the problem. If the furnace is trying to come on but will not light, Its getting a 24v signal from the thermostat, telling the equipment to work. Not knowing the equipment you have makes it hard to help.