I just bought a 76 spider and going through the car to get the bugs out. One big bug is my heater / defroster blower is not working. When I switch it in the indicator light does come on( on low only ) but no fan. I have removed the side panels on the console but getting that blower assembly out looks nasty. Any suggestions ? I wish I could reach the fan blades somehow and try to spray some electrical cleaner in there before I start major surgery. Thanks for your help !