06-09-2015, 06:31 AM
The filter/dryer is prior to the pressure measurements so I doubt it is the problem.
The system I have does not seem to have a "thermal expansion valve", but has two capillary size tubes feeding the evaporator. It could be easy for those to plug. If they are plugged they must be completely plugged as there is no cool spot detected anywhere in them which would be the case if there was only a restriction.
I'm still researching and confirming the diagnosis, but what I've determined so far confirms a plug somewhere downstream of the compressor, condenser, and dryer and prior to the compressor low pressure side. I still have lots to learn.
At the moment, I'm thinking of deconstructing a roof air conditioner for the necessary parts since they are designed for 13,500 btu's which is what my system seems to be.
The system I have does not seem to have a "thermal expansion valve", but has two capillary size tubes feeding the evaporator. It could be easy for those to plug. If they are plugged they must be completely plugged as there is no cool spot detected anywhere in them which would be the case if there was only a restriction.
I'm still researching and confirming the diagnosis, but what I've determined so far confirms a plug somewhere downstream of the compressor, condenser, and dryer and prior to the compressor low pressure side. I still have lots to learn.
At the moment, I'm thinking of deconstructing a roof air conditioner for the necessary parts since they are designed for 13,500 btu's which is what my system seems to be.
Jon Kabbe
1993 coach 337 with Civic towed