[W126 Coupe] dick spellman i.e. climate control or anyone.

[Dick Spellman]

Gary,

The burning wire insulation smell could also be the blower fan if the 
strip fuse did not blow as it should have.  If the fan was powered but 
frozen in place that would be more than enough current to melt the 
wiring.  You whole system needs to be gone over now to get at the short.

You best have things looked at unless you are prepared to tear down 
portions of the dash.

Dick

Gary wrote:

> dick you said the control button thingy was going out....well 

> yesterday the a/c completely shut down.  no air...doesn't even turn 

> on.   unknowningly i left the a/c button on and a few miles into my 

> drive i started to smell that electrical wire burn so i turned the a/c 

> off.  the smell went away.   so its has to be the push button 

> control?   the following is what you wrote.

>  

> "Sure sounds like the push button control is going south or the vacuum 

> switching valve is failing.  You can test the vacuum switching valve 

> after removing pass side carpet and lifting the acc pushbutton wood 

> trim forward.  Need a mighty vac to test each vacuuum lead to the pods 

> in the dash.  Honestly, if the pods are original, you should rebuild 

> them.  The mighty vac will tell you which ones are already leaking 

> easily.  Not so bad if you are operating an SEC with no air bags.  If 

> air bags, yeah it's a bit of effort to get to certain of them.

>

> If you are hearing any clicking from this area when the valves are 

> moving the air all over the place, it is the pushbutton control.  

> Rebuilt with 3yr warranty available for $150-175 depending on where 

> you source it.  Requires you test with a meter both the mono-valve and 

> aux heater pumps for shorts or grounds before putting new unit in 

> place or warranty is void."

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