I have a 1990, 36 ft diesel pusher and the dash air conditioning is not working, I have done the following, 1. found the compressor clutch not engaging, 2. I found a bad blade fuse holder and burndt fuse on the condensor Replaced that fuse holder and fuse, now the compressor clutch engages,3. I purchased conversion fittings for adding R134 to the existing system, I know not reccomended for an r-12 system, but it worked and is still working on my 1990 ford ranger.
So now the condensor fans (2) both run, compressor turns and clutch engages, I added 4 Ea 12oz cans of r-134 and no cooling yet, I did notice the evaporator start getting cold, but not very cold or frosty like i would expect it to.
How much freon R-134 could the system possibly take remember the hoses are about 36 feet long going from the compressor to the condensor and returning 36 ft. back from the evaporator. Is 4 Cans enough and has anyone else filled their system if so how much did it take. It is possible that I have a leak someplace after all the Coach is 23 yrs old.
If there is a leak someplace what is the best way to find it, considering how big the system is. HELP I have a trip planned and hate running the propane genset for 10 hrs. a day while traveling.
Muledeer2 1990 hawkins/36 ft./Cat 3208/37,000 miles