i have a tractor that the air conditioning works good for 10-60 min then quits working not freezing up put on new expansion valve could that be freezing up??? any suggestions???
did u evacuate it for 45 minutes and replace the receiver dryer. might be moisture or trash in the system. need to use guages to see high and low preasures. Is system sweating to the compressor when working and what is the line temps when it quits need more info
joe
June 2009
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