1981 Honda Civic Heater,fan,defrost

220,522 MILES • 4 CYL • FWD • MANUAL
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MYSCOTTIEDOG
  • MEMBER
  • 1 POST
My heater, fan, and defrost stopped working. Nothing happens when I turn the switch back and forth. This went out a month ago. What could this be?
May 27, 2009 at 8:26 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi myscottiedog,

It could be a bad fan motor or a blown fuse. Check the underdash fuse box for any blown fuse.

If the maximum speed is working, then the fan motor resistor is bad. If alll speeds are not working, unplug the blower motor connector and apply battery voltage to the terminals to test the motor.
Jun 1, 2009 at 7:35 AM
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