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Posts Tagged: compressor clutch not engaging after blower motor resistor

Compressor clutch not engaging after blower resistor replacement

Compressor clutch not engaging after blower resistor Shops are reporting a high incidence of the AC compressor clutch not engaging after blower motor resistor replacement. Fix: Make sure you’ve installed the right blower motor resistor. The resistor for a manual temp control versus automatic temperature control can cause the AC compressor no engaging condition. That’s because the HVAC head monitors the return voltage from the blower motor resistor. If the voltage isn’t right, the HVAC head will assume the blower motor isn’t working properly and will prevent AC compressor clutch … Read More


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