I presume these pressures were with the outside compressor running?

Yep, those pressures do suggest bad valves.

--

Christopher A. Young
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"NewsReader" wrote in message
...
We recently had our air conditioning serviced by a professional contractor.
Was low on R-22, no
leak found so he charged it up.

Since then we have had some intermittant problems (no cooling). Put some
meters on the outside unit
with the low side 120 psi and the high side ~175 psi.

I called our air conditioning contractor (1 week backlog) and he believes it
is probably the reed
value in the compressor and the compressor needs replaced. For those who
care, this is Lennox.

Wanted to double check if this makes sense. Any input appreciated.

Thanks. Direct replies to: firefly24 comcast net (insert @ and .)
Gary.