AC and Heat Quit please help.

[Slp223]

In my constant battle to fix thing faster then they break my AC and heat quit. It still makes the hiss noise when I move the hot / cold but nothing blows and it doesn't make any noise. Previous to it quitting on two separate occasion it quit for a few minutes then came back on. Any suggestion for what i need to replace? thanks for all the help.

 

[TLIMITED]

Sounds like blower motor crapped out.Mine did same thing a couple of months ago.

 

[AbeWhat]

There's a good write up on vortex Buicks about diagnosing this stuff. I just did my relay and resistor. 5 minutes, tops.

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[dank GN]

Check the relay ?

that's what my issue was

 

[Slp223]

I still dont have it working. Just changed the relay today didnt fix it. Probaly repalce the blow motor next.

 

[dank GN]

The metal rely in the photo with the 2 screws holding it ?

 

[Slp223]

Yes

 

[salvageV6]

The A/C Fuse is what I would check first.