No low or medium speed on A/C Blower fan

[JPenkert]

The high speed on my blower works. I have replaced fan motor and have new relay for high speed. Have power to resisters in air box. I am not sure which relay is for low speeds. I would appreciate some help

[HotZ28]

It is to the right of the high speed relay. All the relays should be interchangable.

http://autorepair.about.com/library/...s/bl457lib.htm

[kok328]

If the fan motor worked on high speed, then why did you replace the fan motor?

The easiest way to check your resistor (not resistorS, there's only one) would to be check the voltage output to the blue wire on all lower speed settings. Even a bad resistor will have power at the poles.

See this post for additional help:

http://www.automotiveforums.com/vbul...d.php?t=439182

[JPenkert]

Originally Posted by kok328

If the fan motor worked on high speed, then why did you replace the fan motor?

The easiest way to check your resistor (not resistorS, there's only one) would to be check the voltage output to the blue wire on all lower speed settings. Even a bad resistor will have power at the poles.

See this post for additional help:

http://www.automotiveforums.com/vbul...d.php?t=439182

The fan motor was bad bound up. Bad bearing