I have a 2-floor home with gas heat. My thermostat kicks the heat on fine on the first floor. The thermostat does not kick on the heat on the second floor. I took the thermostat off the wall on the second floor and connected the two wires, shouldn't this start the furnace? Does this mean my problem is not the thermostat but a problem with my furnace? The house is 4 years old so I am sure that wiring to the basement is in good shape. Appreciate any suggestions!
Do you know where the wires for the second floor connect in the control unit on your furnace? If so, jump the two screws with a piece of wire to see if the furnace kicks on. If it doesn't, it's controller time. If it does, bring the whole thermostat down to the furnace and hook it up with a short wire. If the furnace kicks on again or doesn't, you'll know what you need to do. Thermostat or wire to the second floor, one or the other.
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Detecting a Short in Thermostat Wiring
It appears that I have a short (it's a new house) in the wiring that goes from my thermostat to the telestat (actuates the flow of hot water to a certain zone in my home -- I have radiant heat).
My question is, is it possible to detect where the short is occurring? I would like to minimize drywall damage. Furthermore, I would prefer to find the short and fix it rather than running additional wires through the roof of my house. I have a flat roof in which leaks are notorious.
You can try cutting the line in a spot (or spots) where you have access and checking it there. Just splice the wire back together again after.
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