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1995 Nissan Pathfinder Air conditioning freezing over

Tiny
RODNEY595
  • MEMBER
  • 1995 NISSAN PATHFINDER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
My AC keeps freezing over even when the AC is turned off. The exchanger in the dash turns into a block of ice preventing air flow. I have checked AC levels and they appear to be good. Why would the AC cotinue to operate while the AC button on the dash is turned off?
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Wednesday, October 27th, 2010 AT 1:08 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi Rodney595,

Is your system Automatic climate control or manual control?

Problem coudl be due to a stuck AC relay. Try swapping the relay and retest.

Other possible causes could be the thermistor.
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Thursday, October 28th, 2010 AT 3:06 PM

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