Electrical Question - Blower Motor?

Bad blower switch.

1. if there is power to the "blower" motor but the motor doesn't spin, that means the motor is bad / ruined / burned up / trashed / junk / throw it away................

2. if it's an electrical motor, it's hardly considered a "blower" i dunno how people have been able to run that scam for so long... i don't care what people think, or what the advertisements say, an electric motor will never act as a blower........

lets say you have a 4 cyl motor.... you'd need a motor pushing 25,000 RPM at a car's idle in order for it to do a damned thing, and at 6000 rpm on the motor, you'd need it to spin something like 350,000 RPM for it to do anything at all.........

the reason why, is because a typical fan, like the type found on the back of a computer will just chop air if the air has nowhere to go... these blower motors need to build COMPRESSION, and model car motors and such, DONT BUILD COMPRESSION... they just build rpm's...

they chop air.. not push air...

and the power of the engine and it's natural intake overpower what the little electric motor does, and if anything it probably loses you horses because you're restricting the air flow..

the ONLY way this would work is if you take a heater core, with the cage type fan, stick a large bladed propeller on it, and ran the largest remote control airplane motor on it you could possibly run, and then put it on a switch that would allow you to throttle it up and down at will... you'd need something like 50 volts to run it though.... but you could actually get a whopping 10% hp increase....

You may have the voltage to the motor but is the amperage there? I.E. a 12 volt cordless drill battery is 12 volts so it should start a car right? Nope, not enough amperage. An electric motor requires twice the power it runs at to start. I would jumper a known 12v source directly to the blower.

Hey Mitch, maybe the rest of us are wrong, but I think he is talking about the blower motor for the heat A/C system.

If you have power to the motor and a good ground and it does not turn , then I don`t know how to tell you this, But your motor is burnt out, replace it. take it out and hook it up to the battery. Does it turn? if yes get back to me, and include what you are working on

The motor could just be burnt up. Are you getting any movement in any position of the switch?