Re: 2011 GC Overland v6 2wd - A/C Fan Continues to blow - but not through vents...
Originally Posted by padgett
That sounds like the evaporator is icing up and blocking flow. Turning on max heat for a few minuites may help.
Since a non-smoker I use the recirc almost constantly and have not had it happen including up and back from NC.
There are two usual causes of icing up:
1) low refrigerant
2) blocked flow (if a 2011 have you changed the cabin air filter behind the glovebox ?)
ps hissing is probably just before the evaporator blocks completely. Is the little flow you feel ice cold ?
pps have seen mention that recirc causes icing. I do not believe that is true, at least not in a high humidity area.
I agree. It sounds like the evaporator ices up and totally blocks the flow. I had a BMW that used to do that during high usage with high humidity. The best fix for us was to turn off the AC and just run the fan for a few minutes. The ice would melt and flow would return to normal. Eventually there was a fix from the dealer. I think the fix just automatically shut down the AC for a few seconds on a regular basis, to prevent the ice from building up.
2014 Grand Cherokee Limited, True Blue, Morocco Black, 3.6L, ORAII, 8.4AN, Sunroof