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warm(ambient temperature) suction line

Posted by jaywalker1981 (My Page) on
Thu, Aug 14, 14 at 22:54

My HVAC stopped working all of a sudden. Its an R-22 System. The Suction line is warm(ambient temperature) and the liquid line is at the same temperature. The Low side as well as the high side pressure with the compressor off is about 150 psi(manufactured recommended Lo Side Pressure is 150 PSI as well). The compressor draws about 18 amps when the call for heat is made.

On turning the compressor on, the suction side pressure quickly drops to 0 and the liquid side pressure goes up to 180 from 150.
What could be the problem?

This post was edited by jaywalker1981 on Fri, Aug 15, 14 at 2:46

Follow-Up Postings:

RE: warm(ambient temperature) suction line

It sounds like the expansion valve is not working.

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