A/c unit runs, fan kicks on and shuts off without running full speed, the motor runs fine when hardwired to line in and unit runs. White rodgers D330937p01 furnace control. Only 55 volts was getting through door switch from switch box on side of furnace, so I soldered the wires in the switch box, now getting 120 like it should. I hard wired the fan motor to run to cool off house because of wife and child being toooo hot. It woke me up one morning by making a turning on and clicking off sound. I can offer automotive help.