My Jeep Grand Cherokee 2001 air con comes on and off and appears electrical fault but acn anyone advise plse?
Monday, February 25th, 2008 at
8:40 pm
Robin M asked:
Garage has quoted for complete new unit but when it is on it works perfectly.
The heater/air con unit (and the rear window defrost switch) will work intermittently-as if it is only getting electrical supply now and then. When it is on, which can be from seconds to minutes, it works perfectly. On a trip it switches on and off repeatedly.
Hope this explains the problem abit better
Tagged with: Acn • Rear Window • Switches
Filed under: Jeep
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brighton electrics
what is the problem? control head shuts off, blower motor quits, lack of airlow?
if the whole control head is shutting down including the rear defrost i would have to agree the most likely cause would be the control head. it is not unlikely or uncommon.
sussex electric
I have to risk insulting your car knowledge, but…
If the heater control is set on Defrost, or any combination including Defrost, your A/C compressor will run. That’s normal. And if the temp controls are set to Cold, it will BE Air Conditioned air coming out of whatever vents (again, with the controls set to Def in any combination).
Your garage should know this, as it is nothing new or unique.
Do you mean that the A/C comes on when it’s turned completely off? There is, by the way, a test to diagnose only the HVAC systems in Chrysler vehicles. I am not sure how it would work on yours, because the system models vary.