So Im headed home , and get a call from my cousin " my AC isnt cooling well "
Have to top this off every year , cant find a leak .
Its 102 degrees out today , and she watches kids .
All I have in my trunk of my car is a old set of guages , and a bottle of r22 . Ok this will do .
2 ton Rheem split about 20 yrs old , tri level home .
Throw on the guages and I have 70 and 370 . Whoa .
Look at the condensor and its dirty .
Return Filters are pretty new , AH filter clean , evap clean .
Wash the cond real good . Fire up the comp .
Guages fluxuate around a little and steady at 50 and 250 after about 5 minutes .
Ok fine it wants a top off .
So I add a half pound . Goes to 60 and 260 . Add little more hits 70 and 270 . Hmm its hot out here .... I think 300 should be perfect . Bump it to 2 pounds . 75 and 310 . Good its happy . Go inside and the air is nice and cold .
Go back out . Im standing there day dreaming when I hear a " click " in the compressor , and the low side spikes to 95 , high to 350 , and it sounds like a dish washer in the comp . Im like what tha I panick and loosened the low side hose to bleed off some gas - figured I added too much. I let out approx 1 pound . Both needles start dropping slowly . Dish washer sound stops and I got 85 and 325 . Ok whew thats better , let it run a little bit while I scratch my head .
After a few minutes I hear a click again , and its back to 80 and 290 in a flash . Stayed that way for 10 minutes . I said ok Im cool with that , and I went home .
What happened ?
I do MVAC for a living , and have fixed several home AC . Never seen this .