A/C Heater Blower Electrical issue

Asked by Dec 31, 2016 at 06:42 PM about the 1999 Chevrolet C/K 1500 LS Extended Cab RWD

Question type: Maintenance & Repair

My truck's A/C would initially only operate on high speed then quit blowing all together. I replaced the Blower Resistor & Blower Motor- no improvement. I replaced the A/C Console & Fan Speed Switch, got it working on all speeds, but after a few weeks the Blower Fuse blew. Replaced the fuse but it's still not working. I'll be grateful for any advice you may have.

1 Answer

77,805

There must be a draw on the circuit, a bad component, all I can see that you have not looked at is the HVAC Control Module. Also I would see if that blower motor resistor is still good, and along with the new blower motor. If the blower motor is drawing too much current, it would pop the fuse.

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