LAUXIER

i have a 87 convertible--it started blowing fuses---if you turn the heater or ac on it blows a fuse---a chevy dealer told me i need gm part#1228095 which is a hvac control dash unit or hvac controls dash control unit or ac and heater control head--said this part has been discontinued---where can i get this part--any help would be greatly appreciated

SunCr

What fuse? Electronic or Manual a/c?

LAUXIER

electronic digital control

npbassman

FWIW, My 93 LT1 blows the fuse that powers the climate control unit when I have the AC compressor plugged in at the engine bay. The compressor was seized when I purchased the car and I eventually figured out that the seized clutch was the culprit. So, I just leave it unplugged so I can use the rest of the climate control for heat and fan.

sailorsteve

Since you have the part #, you could try www.gmpartsdirect.com.

Chapindad

ebay has rebuilt ones on it. Buyer be where...

SunCr

Still need to know what fuse is opening. If if it's the a/c fuse, it has nothing to do with the Control Panel. That's on the Compressor circuit, always hot with the key in run. It's grounded by the Blower Module with an a/c request from the Panel. Blower Module Power is from a Fusible Link and always hot. If the a/c fuse is opening, it's usually a shorted clutch coil, so let us know what fuse is blowing. Control Panel fuses are Gages - Power; Courtesy Clock - Memory. They protect a bunch of other stuff too so you'd need to rule them out.

LAUXIER

It is the courtesy clock fuse that blows-when it blows the ac goes off and tghe radio goes off

SunCr

Tough one to diagnose because of everything else on this circuit - hopefully the a/c panel connector(s) were checked to rule out terrminal contact. Ignition Power is isolated in a separate connecter, but I think there is a 5 volt/in out to the Programmer on this Memory plug.