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As posters have said it is a sealed system, BUT it can be charged and I will qualify this by saying if the work is done by a qualified HVAC tech. My neighbor who is a qualified HVAC Tech, (the HVAC tech for the local Hospital campus), recharged the system in my last coach by installing a "piercing" valve on the low pressure line of my Gulfstream's rooftop unit and recharged it. The coach was 9 years old at the time and he said a little Freon leaking around the compressor seal of these small units is normal overtime. He said the window units in the old sections of the hospital buildings are pretty much the same as a rooftop MH A/C unit and the hospital recharges them the same way.
There is no charge port on most RV's A/C units and it is not a procedure most RV service departments want to undertake though my guy did the work in less than half an hour. Most service departments would much rather sell you a new A/C unit.
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2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
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