Random blower motor functions on and off
My 2014 ram 1500 blower motor randomly cuts in and out. I have changed blower motor and control switch and it’s still cutting in and out.
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If you have changed the blower motor and control module, you likely have two remaining possibilities:
1: Your blower motor resistor has failed which can cause an intermittent connection as the resistor heats and cools.
2: You have a loose connection in your wiring harness. Check all the pins are firmly in place in the connector.
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