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TUCSONRAIL · 04-20-2016, 06:35 PM

I have a 2008 Kountry Star that the rear AC unit is not cooling. I have read that they are a sealed unit and can not be serviced if the freon or whatever they use has leaked out. Is it better to just install a new unit, or try and fix the old one.

loisjop · 04-20-2016, 06:53 PM

Quote:

Originally Posted by TUCSONRAIL

I have a 2008 Kountry Star that the rear AC unit is not cooling. I have read that they are a sealed unit and can not be serviced if the freon or whatever they use has leaked out. Is it better to just install a new unit, or try and fix the old one.

There are several things that will keep an a/c unit from cooling. Relays, thermostat, capacitors, etc. First I would do a little troubleshooting before anything else.
To answer your question, yes they are a sealed unit, but a fitting can be installed although it's normally not done. Like I said above I'd make sure it was a leak before assuming that. If there is a leak you should be able to see some sign of oily residue.

jerry bies · 04-21-2016, 11:57 AM

I had a similar problem of not cooling, I had removed the ac cover,ran the ac,still not cooling . Had wife shut off ac unit while I was on top of roof, heard freon gas leaking from copper line. The line had vibrated and caused a crack. Called a ac guy and he silver so deed it up. Install a system recharge fitting, pumped it down and recharged it and it started cooling. I was lucky in finding the freon leak. Your problem might be different.GOOD LUCK

GaryKD · 04-21-2016, 01:55 PM

Hi TUCSONRAIL,
Are the fans running? Is the compressor running? Could be a start capacitor. Take the shroud off. There is a metal box one must remove the lid. If it is a capacitor usually you will be able to tell. There will be gooey gunk all over the top of the capacitor.

TUCSONRAIL · 04-21-2016, 02:18 PM

Hi Gary, Yes the fan runs, and it comes on immediately instead of the normal 2 minute delay before the AC kicks on.

jerry bies · 04-21-2016, 02:59 PM

Do you hear anything leaking out after shutting it off ? Have someone shut it off while you are up there with cover off .

GaryKD · 04-21-2016, 03:21 PM

Hi TUCSONRAIL,
Make sure the evaporator and condenser fins are clean. Really clean.

CampDaven · 04-21-2016, 04:03 PM

I had one fail. Amp meter showed a current draw on AC and heat pump that meant the compressor was running but no freon, per my tech. Replaced the unit.

Dave and Nola, RV Mutants