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Just installed the RTH230B thermostat and no hot air is coming out, just cool
I replaced my old thermostat with the RTH230B and it seems as though the fan comes on but there is no hot air coming out with the heater setting. I put the wires in the spots that they were in the old thermostat, but there was an extra blue wire that was not connected in the old so I did not connect with the new. The wires that are there, that were hooked up to the old one are; red, yellow, white, and green.
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