Your blower motor is burned up. You need to get it replaced. Cost of motor, depending make and model and geographic location is approx 85.00 -100.00 figure roughly 2 hours for labor.
Blower motor may be burning out.
pluged filter, dirty coils,
If the noise is a squeaking sound, it could be coming from the bearings in the blower fan. It could also be coming from a worn bushing or bearing in the blower motor.
Defrost uses the a/c, if it doesn't smell the same with a/c only on. The smell is coming from the blower motor. Bmw's for example have a problem where the blower blade contacts the plastic housing and causes it to rub/melt.
He sees the snow blower coming.
I first guess would be something is blocking the fan/ blower motor. The filter could've been pulled into the blower fan and restricting the air flow causing the fan to pull to many amps and trip the breaker. The air coming through the duct at a room temperature could be the heaters in the air handler is coming on. First verify the outdoor unit is operating. Tron
Burning Wires.
I had this issue over the winter....had a mechanic tell I needed to take the blower fan out and clean it. Apparently some mice built themselves a home in my fan. The smell is likely the fan burning up because it is trying too hard to work.
Can you feel anything coming out of the vents. Also if you turn on the dial that controls the speed of the blower, and you dont feel anything coming out then you need a fuse or blower motor or mabe a resister for the blower motor. I would have to say that 8 out of 10 times its usually the blower motor resistor. Hope this helps
If the click is coming from the starter solenoid then you will probably have to replace it. If the click is coming from the fuel solenoid on the bottom of the starter then you may have a safety switch problem somewhere. Determine where the click is coming from and we can go from there. First make sure that your battery is good and fully charged. By passing the solenoid will make it work with either symptom. So that won't help diagnose it.
take your multimeter and set it to volts, going into the solenoid you should have anywhere from 12.2 to 14v and coming out it should not drop anymore than 1 volt. If it does the solenoid has to much resistance and should be replaced
Bad blower motor? Blown blower motor fuse? Bad fan switch? Bad blower resistor pack?