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?
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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