1995 Nissan Pathfinder Air conditioning freezing over

1995 NISSAN PATHFINDER
170,000 MILES • 6 CYL • 4WD • AUTOMATIC
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RODNEY595
  • MEMBER
  • 1 POST
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?
Oct 27, 2010 at 6:08 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 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.
Oct 28, 2010 at 8:06 AM
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