Hi all pros - I'm a homeowner, longtime "lurker" to the site...Very appreciative of all the GREAT advice given on the site...Very useful in the past. Quick background on situation:
A/C unit for upstairs level of home is a 13 yr old Carrier, 3-ton, 10 SEER,runs R22, and is apparently on the way out. Evap coil replaced last year by home warranty co contractor; they used an R410 coil with TxV valve to handle R-22. Having issues with compressor not kicking on with system since the coil install. Fan runs fine. New home warranty contractor says R410 coil not matched to R22 condenser, says coil box was not installed right - prior coil was "A" style installed partially offset on top of blower, new coil is "N" style coil but still offset in same way. Also say TxV valve may be malfunctioning, causing high head pressures leading to compressor non-start. When compressor does come on we are getting noticeable bubbling/boiling/hissing sound coming from inside of the walls where refrigerant line is running from outside to attic evap coil.
Home warranty co contractor recommended replacing entire A/C unit, the evap coil plus condenser/compressor, leaving Carrier furnace/blower. Warranty Co is offering to replace Carrier with GOODMAN GSX13 Running R410.
- Does this sound right? Is this good/adequate replacement? Should I try to force repair of my Carrier system as-is (staying with R22) and not replace? Any issues I should look out for with Goodman unit? Questions I should ask or things I should verify with installer on the Goodman?
I know from reading here, install is half the battle. Just trying to get some quick pro thoughts, and any guidance re what I should do or should be asking about. Thanks in advance!
-- J. in Charlotte, NC