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Heater blower fan quit and 30amp battery main.

Tiny
ANONYMOUS
  • MEMBER
  • 2004 PONTIAC GRAND PRIX
  • 67,000 MILES
Heater blower fan quit and 30amp battery main fuse under hood blew replaced fan and fuse. Blower ran on high as soon as pluged into harness, I replaced module and worked fine for 1 week then started running continuously on high again. Replaced module again and worked fine for a day next day started and instantly went to high setting when turned knob onto lowest setting
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Thursday, January 31st, 2013 AT 6:43 PM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Did you replace the connector?

Roy
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Thursday, January 31st, 2013 AT 9:55 PM
Tiny
BRUCEMAY
  • MEMBER
  • 4 POSTS
What are you calling "THE CONNECTOR"
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Saturday, February 2nd, 2013 AT 1:57 AM
Tiny
GMTECH
  • MECHANIC
  • 537 POSTS
If you are continuously blowing a fuse you need to figure out the cause. I am sure the module burns out and blows the fuse but have you considered that the blower motor might be drawing too much current. You potentially have a small water leak into you heater case that could case your blower motor to rust and draw more current.
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Saturday, February 2nd, 2013 AT 5:21 AM
Tiny
BRUCEMAY
  • MEMBER
  • 4 POSTS
The leak was repaired prior to replacing fan motor and fuse hasnt blown sice I replaced it the one time. No water is on or around new motor.
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Saturday, February 2nd, 2013 AT 11:17 PM

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