My vehicle A/C is icing up while driving. Initial vent temperatures are 0 - 2 deg C for about 1/2 hr then rises slowly. After 1.5hrs it will be around 10 - 15 deg C with air flow reduced. The vehicle has had the "De-Icing" Thermostatic switch replaced 6 or 7 times, TX valve replaced twice, new drier and a new evaporator assembly. The dealer tried repositiong the "De-Icing" switch but the cycling was too great and it would blow 20 degree air for 10 seconds every 20 seconds.
Video of the evaporator Inlet/outlet thawing after driving for 1.5hrs. Is this a normal amount of Icing? Should there even be any in a correctly working system?
2014 Land Rover Defender
Temps taken with a K-Type probe about 3 - 5cm into the vent.
Any one have any ideas or recommendations? The dealer and manufacturer are not being the most helpful at this time. I can provide full specs and operating principles of this system if needed.
Sorry if this is the wrong place for vehicle related stuff.
Edit: Location is Northern Australia. I am getting the same performance with an outside temp anywhere between 25 - 40 deg C the more humid the quicker it ices.
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