Yesterday when I started my car I thought "something" was different, but didn't try to figure out what it was. After about 3-4 minutes of driving the heater fan started. The switch had been on 3 and I moved it through all settings & it worked properly. I was out running errands and the next 3 times I started ther car it worked as it should. The next time, the car had been running for 7-8 minutes before the fan started. The last two instances were about 15 and and then 7-8 minutes and the fan did not run at all. I didn't think it would be the fuse, but I checked it anyway. It's fine. When I turn the key from Accessories to Run there is a "click" in behind the glove box. Is this enough information to diagnose the problem? I'm concerned that I will be tokd that the blower motor needs to be replaced at a cost of several hundred dollars and I'll be in no position to argue. Thanks for any comments you can offer.