2003 Chevrolet Avalanche Heater C Working Fine One Day Next Went Turn On Didn T

2003 CHEVROLET AVALANCHE
120,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
My heater and A/C was working fine one day and then the next day I went to turn it on and it didn't work. It doesnt do nothing, it doesnt blow air or anything. where do Istart to find the problem and how do I fix it?
Oct 26, 2012 at 12:58 PM
Advertisement
Avatar
HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check yoru fuses first, then if you have a test light, test to see if resistor an drelay are getting power, they are by the blower. one or both cold be bad or the control unit may be bad. you also might try takeing the fuse out and putting back in after a minute or so. otherwise you'll need to have it scanned to see what 's wrong.
Oct 26, 2012 at 2:05 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.