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Heater blows cold air

Tiny
HEATHERJSALM
  • MEMBER
  • 2000 NISSAN XTERRA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 181,412 MILES
When my car is on and my temperatures are normal and I turn my heat on it blows cold air. If I unplug my air conditioner the heat works fine but the air conditioner does not. When my heat is on and the air conditioner connected the heat blows warm to cool air even when put on the highest setting. Do you know why or what I can do to make my heat work?
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Saturday, December 3rd, 2016 AT 2:34 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try pulling HVAC fuse inside car to reset actuators do it for sixty seconds with key on then reinstall. If this is auto temperature control where you set temperature a mechanic will have to scan it with his scanner.
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Saturday, December 3rd, 2016 AT 4:02 PM

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