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colepea
Apr 29, 2008, 03:31 AM
This a a carrier thermostat with multiple zones and it does not have batteries. After I opened the thermostat there are 4 wires red V+, White = VG, yellow = RS+ & green = RS-. What can I do at this point?
hvac1000
Apr 29, 2008, 05:37 AM
You could check to make sure 24 volts from the transformer is getting to the base of the thermostat controler. Other than that being a multiple zone thermostat any other repairs would be best left to a professional.