My 91 infinity heater would not shut off for 2 wks then it quit. Replaced relay board, worked off and on, mostly off. Replaced heater switch, came on. Started car back up and once again no fan.

Asked by Jan 13, 2013 at 09:18 PM about the 1991 INFINITI G20 4 Dr STD Sedan

Question type: Maintenance & Repair

2 Answers

102,825

A twelve year old blower motor will have short brushes. They get hung up in the brush holders and prevent the motor from turning. Try tapping on the motor with a screwdriver handle or you shoe to see if you can get it running until you replace it.

45

tenspeed is right. most likely a new motor is in your future. did you check the resistor when the circut board and switch were replaced

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