Climate control fan switch

[poncho1965]

My fan switch no longer works in the #4 position. 3 more days until I get investigate, so I thought I would ask: Is this a resister pack issue again? I thought I had that problem beat.

 

[scoreh3]

If it's only #4 , it sure sounds like the resister ( AGAIN !!! ) . I've replaced 2 and mine just stop blowing on position 4 again .

 

[K0PIR]

I had this problem a long time ago and I fixed it by soldering the harness. It turns out it's not actually the resistor that's causing the problem but the connector. If you search for AC blower fix you should find the thread on it.

 

[poncho1965]

This is the fix I did, I'll check the connection on my days off. Beat it up at LCC I guess!

 

[08HummerGuy]

The connector at the blower motor resistor (next to blower motor) is most likely the fault, they tend to melt, look there first, I have replaced many of these & they are available through a GM Dealer.


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[poncho1965]

Have a brand new resistor/harness. Tired if "fixing" this every 2 years [emoji23]

 

[alan.mooney.79]

I soldered mine direct two years ago with no problems. Originally I was going to replace the harness, but it wasn't in stock. It seems that the connector terminals make a poor connection and the arcing burns up the plug. Solid connection, no more problems.

 

[poncho1965]

I soldered mine direct two years ago with no problems. Originally I was going to replace the harness, but it wasn't in stock. It seems that the connector terminals make a poor connection and the arcing burns up the plug. Solid connection, no more problems.

I did this as well. Haven't had time to dig into this yet. Once it gets hot enough I'm sure I'll prioritize it!