Dual Heating control system!

[Alfalfamale]

Good morning fellow Alfamales!

I have another issue with my beloved GTA.

The drivers side dual control knob for the heating system has stopped working. I still have some control with the passenger side control, but it ain't perfect.

Any advice would be greatly appreciated?

Best wishes

[AndyMac]

Hi there, the sensor behind the dial has come adrift. Needs taking to bits and re soldering. I posted a thread that shows how to fix it.

[Alfalfamale]

Thanks AndyMac,
Can't find you're Thread re, heating control sensor.
Do you have a link?
Cheers Buddy

[Alfalfamale]

Found it!

Cheers

[AndyMac]

Good stuff, it's pretty straight forward, getting the unit out takes more effort to be honest.

[Jamhot77]

Wish I'd read this thread before buying a standard colour secondhand unit! Started taking the second hand bits apart to fit to GTA. Typical! Will give this a go at the weekend I think.

[AndyMac]

http://www.alfaowner.com/Forum/alfa-...ial-fault.html (How to fix electronic climate control dial fault)


It look daunting inside, but the little u shaped sensor thing is a sillily design and is easily repaired. I bought a spare one to swap with the broken original from a breaker, and it was broken too. I managed to repair it and sell it on. While I had the unit apart, I also resoldered all the joints to the 3 dial sensors. The amount of solder from the factory was very low. As that is the only thing holding the sensors on the board I added a blob of hot glue gun glue to the sensor edges to hold them more firmly too.

[diathermy]

Hi guys,

Was on a long journey yesterday and halfway through, the climate control went from 20 degrees ti hi all on its own. Initially I thought me or the wife had hit the demist button by accident, but it happened a few times. Once it went to high, the drivers side control did not seem to do anything.

On the return journey, system hardly worked. When turned on from middle control, it just jumped to high. The passenger control seemed to work ok, and when turned, did result in the drivers side temp dropping a little.

Just wondering if anyone has experienced silimar problems. I think it may be a problem like the op, so will take out the unit and see, as he did.

Any other suggestions?

[Jamhot77]

Originally Posted by diathermy

Just wondering if anyone has experienced silimar problems. I think it may be a problem like the op, so will take out the unit and see, as he did.

Any other suggestions?

Mines exactly the same. Will try soldering option first.

[diathermy]

Cool.

Let me know how you get on, because you will probably do it before me as I am busy over next couple of weekends.