Correct Controll Wiring Problem PSC Blower

Correct the Control Wiring Problem or Replace the Thermostat

Before replacing any thermostat, be sure enough time has elapsed to account for built in time delays. If there is 24 volts between Common and (R) at the air handler but not between common and (G) terminals the be sure to check for any control safety switches (condensate overflow switches) before tracing for broken wires, bad wire connections or replacing the thermostat.

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AC low voltage wiring diagram