I just got back from vacation today and got a call from my Mother who is 78. She has a 2000 Blazer with less than 40,000 miles on it. She stopped at the store on Friday and when she returned to her Blazer she had no A/C. No blower fans, no A/C, no Heat, nothing. I suspected a fuse but could not find any that were bad. In 2008 she had the heater worked on at the dealer and it cost her about $900.00,( clogged core)? Then in 2009 she had her A/C worked on, another $1000.00.

I Thought for sure it was just a blown fuse and I could fix it myself. She's on a fixed income. It would be great if I could fix this for her. Any suggestions would be greatly apprciated

Thanks

dfd

 

could be the blower motor resistor, control panel or blower motor.
You will have to do some diagnostics to find the faulty part.

 

Is it climate control or manual control?
I'm not a chevy guy but this is a generic type problem.

Drive it and see if you can make ANYTHING associated with the heater controls work.
Like vents/def/floor. Temperature {blend door}
If not... almost certainly fuse/relay circuit breaker. Dont just look at fues, test it. Then do wiring wiggle tests at fuse box and control.. will often find bad connection

 

Electronic Climate Control System

 

On my 99 brava diag

Under hood fuse
HVAC 30 A


Inst panel fuse 9 20A main function power
Inst Pnl Fuse 21 10A serves control, day/nite mirrors, rear defog and controls blend door.

No panel illum, also? ground splice - black wires.