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Blowing fuses

(1990 Chevrolet Blazer)
in Lake Geneva, WI on July 07, 2013
When going from vent to off I blow a fuse. What could be causing this problem?
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Popular Answer
on July 07, 2013
Short circuit in mode selector switch in the control panel. Part prob. discontinued. You can check. AC and other controls work ok?



Update! Try NAPA part # TEM 207465. AC mode selector switch. That lever activates this switch, will need to remove the heater control panel to replace it. Not a hard fix if a little car savvy.
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