I have as similar issue but maybe more indepth. Experanced the same problem as previously stated but there is still an intermittent problem. Blown 50 amp fuse. Replaced. Also replaced blower resistor. Sometimes the fan works and sometimes it doesn't. Unless there is a deeper wiring issue I haven't found somewhere I dont understand it. I do know I can jump power directly to the resistor and force the fan to come on without problems.