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Need help with wireless thermostat problem
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I'm having a problem with a new wireless thermostat and wonder if I
could get some advice. The thermostat is a Carrier TSTATCCPRF (thermostat) and TSTATCCREC01 (receiver). The manual is at The furnace relay on the other end is a Honeywell R845A (manual at I have the T T connections from the relay going to the W and R connections on the thermostat. Now, when I first hooked up the thermostat, everything worked fine for a while. Then the relay at the furnace started buzzing. This happens even if the transmitter and receiver are right next to each other. When I put back the old thermostat the problem goes away. I got a replacement thermostat of the same model and the same problem happens, so I don't think it is defective. The back of the manual mentions that with a 4 wire system, adding a 270 ohm, 10 watt resistor across the Y and C terminals at the furnace will provide more power, but I have a 2 wire system and I'm not using the C terminal. Thanks for any advice you can give on this problem. |