Replacing Thermostat


Old 03-09-05, 09:47 AM
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Replacing Thermostat

I'm in FL and I have a Carrier Pump and Air Handler. I'm thinking about replacing the current thermostat, White-Rodgers 1F58-80W, with a Honeywell RTH7400D. Will this be the proper replacement? I'm worried about wiring, as it says in Honeywell's manual not to follow the existing wiring color coding. Any advice?
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Old 03-09-05, 10:32 AM
Ed Imeduc's Avatar
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The color of the wires dont mean a lot. thats why they said that. Mark down what color wire you take off of each letter on the old tstat like R W G Y C E L O OR B with the heat pump and put them back the same.

Old 03-20-05, 08:56 AM
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replacing thermostat

make sure the thermostat you buy is for a heat pump if thats the type of system you have also some thermostats have a gas or electric switch some also have a O or B switch these need to be set also
Old 03-20-05, 03:48 PM
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H/P thermostat

Save yourself a lot of potential grief & expense. Call a pro to replace the thermostat, if you are not 100% comfortable doing it. A lot of my service calls are the result of a homeowner replacing his/her own thermostat & messing something up.
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