In my 92 Roady - My blower fan wont turn off even when the car is turned off and the key is out of the ignition. I replaced the blower fan motor a year ago (salvage yard blower) and just recently replaced the Climate control panel (thinking that could be it) and it still wont turn off. I have to unplug the blower motor just so it wont keep running. What should I look for now? Could it be a bad blower motor?