A/C switch test

[mhopton]

I have a new AC system (2 years) and it blows cold til yesterday. The light went out on the dash as did the cold air. When I push the button it still kicks the compressor on - so could some portion of the switch be bad?

I have the manual and have read the section but do not have the knowledge or tools (meter) to test electrical bits - jeez, I'm a banker.

Also, the lights do not light up on any of the push buttons for the air control panel.

HELP - IT's HOT!!

thanks, Mike

PS, 89 LX

[mhopton]

OK, that wasn't too bad. I've narrowed it down to the Heater Control panel as being bad. I can deal with that. Now to figure out which plugs on the A/C connector that the dash switch plugs into to jump in order to get power to the compressor... or will that work?

[Mac]

You might have a blown fuse. Check fuse #5 (10 amp) in the under the dash fuse panel. I think it is labeled rear window defrost.

[mhopton]

Oh YEAH!! It's that #5 fuse!! I didn't even think to check that it could be the rear defrost fuse - I checked just about all the other ones though.

Thanks Mac! Now if the salvage yard will hopefully take back the control assy that I bought this afternoon...

thanks again...

[Mac]

Not a problem. Even if the junk yard doesn't take it back, you can use it to start a spare parts collection like alot of us have.