After rebuilding my bus air condenser fan system on my Country Coach, I decided to pressure check the system before recharging with R-12. I applied 250 PSI of nitrogen to pressure check the system and had no leaks on the condenser that I rebuilt, but the compressor leaks at the seems. A quick call to Omega Systems in Dallas resulted in a great conversation with JD Huff, their AC Sales Manager. He stated that if these large AC compressor overheat, leaks can occur at the seams such as mine does. He suggested that individuals have had success with installing a refrigeration system sealant, but I chose not to take that route. Mine was low on oil, thus the overheating. Mine has a convenient sight glass on the compressor's side to see the level. I discovered the low oil level during the bus air service.

I have never seen an AC compressor leaking at the seams.

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If you have a system that leaks down over a long period of time, here is a place to check.

This applies of Country Coach owners with the Country Coach bus air system.

Hector