CHECK FUSE AND RELAY.IF ALL IS GOOD.CHECK VOLTAGE AT HEATER CONTROL SWITCH.IF YES REMOVE BLOWER MOTOR GROUND IT. AND HOT WIRE IT BY USING A JUMPER WIRE AND BATTERY.IF MOTOR RUNS IT GOOD AC + HEAT CONTROL SWITCH COULD BE BAD. GETTING POOR GROUND. ALSO BLOWER RESISTOR IS FAULTY.IF BLOWER MOTOR DONT RUN REPLACE IT.IF NO POWER IS NOT GETTING TO BLOWER CONTROL SWITCH.BLOWED FUSE OR BAD RELAY.OR BROKE LOOSE WIRE BETWEEN THE FUSE WIRES TO THE CONTROL SWITCH.
Check for a bad fuse.
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