[ferguson58]

i check the pressure on my ac unit recently and it had reading of suction 100psi and head 160psi.This is way off from the normal reading of suction 70psi and head 210psi.I went on the internet and get various possible cause from restriction in suction lline ,bad valves in compressor,bad valves in air handler , moisture in system.What do you think is the problem

 

[Doc Holliday]

Restriction. Could be a filter drier or the metering device.

 

[hvac instructor]

sounds like bad valves. what type of comp. recep or scroll.
if restriction wound it be low suction?

 

[carmon]

a restriction in suction line wil not give you hi suction pressure...it sure sounds like the compressor is not pumping.... or has someone dumped an extra 5 lbs of gas in the thing..... run compressor and then shut it off and listen to see if you hear the compressor hissing.and the suction line warming up......

 

[Doc Holliday]

sounds like bad valves. what type of comp. recep or scroll.
if restriction wound it be low suction?

Yup. :thumbup:

 

[Marty S.]

Agreed, compressor problems.

 

[beenthere]

A couple guesses. A, compressor, B reversing valve if its a heat pump.

 

[brian_bama]

it sounds like a bad compressor