2005 Prius, 181K miles. No heat or AC for a couple weeks so I figured the fan motor was bad. Just replaced the fan motor (if that's what it's called) under the glove box. Haven't put everything back together but I plugged in the new fan motor, turned on the car, turn on AC....no air....turned on defrost....no air. There's just a low whining sound that comes from under the hood when I turn on the AC of defrost. Any ideas on what could be causing the fan not to blow?
Maybe check with a voltmeter at the fan connector. Do you get voltage? I assume you checked the fuse already.