Hi all. Haven't seen any posts with a blower that works on only three AND four. Many posts cite blowers that work only on four.

I've replaced the resistor's fuse, but still no luck. It's possible that I've blown the new fuse—haven't checked with an ohm meter—but is it possible that something else has gone?

Have checked the main fuse box and the all are good.

Any other ideas?

 

blower motor resistor is bad. replace it and all will be well.

 

x2.....