Dash Air Conditioner & Heater blower motor only works on High

[CJ7365]

Took the blower resistor out, looks good, not burnt, has continuity on the 3 spring resistors, hooked it back up, I still only have High on the blower.

Blower works on High without resistor installed, there are 4 wires  on the plug to the resistor, all the resistors I am seeing don't have the right connection, they have the 4 spades on the back but will not match to my connector, guess I could just cut the connector and connect with spade terminals??

Could it be something else? before I buy a new one?

[Rickf1985]

When the resistors burn out all you will have is high, the resistor is what drops the voltage for lower speeds.

[CJ7365]

I took the resistor out of the blower housing, disconnected it and it has continuity on all 3 coils.

All wires at the end on the plug, have voltage when the blower switch is turned in different positions

Looks like there is a relay in this wiring harness, not sure how to test it?

Looking for some more guidance

[Rickf1985]

You may have a bad switch that is burnt on the inside and no matter what position it is in it sends power out the high setting.

[bobcat]

gm uses a high blower relay which by passes resistor when on high speed. it may be stuck?

[DaveVA78Chieftain]

Not sure if this thread will assist you or not

http://www.classicwinnebagos.com/forum/index.php?topic=7541.0

[CJ7365]

gm uses a high blower relay which by passes resistor when on high speed. it may be stuck?

I replace the relay with another one I had, no difference,

I am really making a mountain out of a mole hill, because I very rarely use anything except High on the blower anyways...

Just have an obsession with everything working.