1999 Buick Century Heater fan fuse

1999 BUICK CENTURY
Avatar
STEVE TERRALL
  • MEMBER
  • 1 POST
Heater problem
1999 Buick Century 6 cyl Automatic 130000 miles

heater/cooling fan in cab works fine on a bench test, no noise of vibrations but instantly blows the 30 amp fuse in the passenger side when installed.. have read that may be indication of something wrong with AC
Aug 19, 2009 at 2:48 PM
Advertisement
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Are you talking about the high blower fuse? When testing, you can use a testlite across the fuse terminals, instead of blowing all your fuses. If the lite comes on, the circuit is going to ground. Unplug blower motor and test, if it still comes on, unplug connector at resistor assembly test again. It might be a short on the circuit from fuse to resistor assembly?
Aug 19, 2009 at 3:34 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.