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heat/ac fan is always on -never shuts off-even when key is off,fan still blowing on 1993 Jeep Grand Cherokee

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Asked by for the 1993 Jeep Grand Cherokee
try unplugging your blower motor resistor to start with and see if that helps. iv seen this only one other time on a dodge b4
Thanks for your response.This is what I thought it may be and previously asked a question as to the exact location of the blower motor resistor but did not get a helpful response. I will try that and see if it corrects the problem.Thanks again for your reply.
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Most likely its a defective - Blower Motor Power Module