Heater blower motor....problems

[Cruiserhead05]

Ok. one day my blower motor just stopped....i took everyones suggestion and replaced the resistor. that didnt do anthing. Then i found a working original blower a guy had from a 1982 and put that in it today. Still not working? What could be next. the switch? or the resistor on the new blower? thanks

 

[1Fine40]

Check the switch and the obvious, the fuse. I have seen fuses that looked good to the eye, but were open inside the glass tube at the ends......use a meter to check em' Turn the switch on, and check for voltage at the blower connection would also be a great place to start.. Have some fun, electrical problems aren't that bad if you logically work your way through them!!

Cheers!

 

[IDave]

Use a test light and work your way back from the motor. If the connector is oem, there will be a three prong connector. The stickout is the ground, the other two are high and low. Stick the probe in the high or low with the appropriate switch setting, and ground it on the engine block to check for current.

 

[Eric_S]

1st.....does your original heater fan work at all?

Did you unplug it and run 12V across the motor windings to see if it runs on high and low?

If it works fine, you need to look into your wiring harness. Maybe a blown fuse, bad ground, shorted wire, etc.