Major Issues with Trane XL13i ... Need Help Fast!

I have a 3 1/2 year old 4 Ton Trane XL13i A/C unit. About 2 months ago it had trouble turning over on startup. My servicing dealer came and installed a start assist kit. This seemed to help. Last Sunday the compressor started to fail towards the end of the day. It would not run all night and then it would come back on in the AM. The dealer put a new compressor in. Guess what? Same problem that night and 3 nights since. Also, the unit does not put out cold enough air. It runs all day continuously without cycling. Obviously it was not the compressor. Tech was out last night and the freon line was silent, the coil was dumping water and the compressor was red-hot! He had to run cold water right on the compressor for 30 mins just to cool it off so it would run again while he was there. Now he thinks the issue is the metering device in the coil and he thinks an indoor coil replacement will solve the issue. But, there is no way to really test the metering device. He is 80% confident in this solution. Based on the history here, I am not confident at all. It just feels like a trial and error guessing game and I am extremely frustrated. I have an outdoor unit that has been taken apart once, had a start kit added, had the 410A line drained already once. To replace the coil they will need to drain it again. Also, the new compressor has been running red-hot the past 3 nights, so I am worried about possible damage to that as well. I just feel like I have a real junk-yard, patch-work system out back. I have been in contact with Trane corporate and I am trying to push them to replace the indoor coil and the outdoor unit. This is the hottest week of the year and there is no progress from my dealer here. They need 2 more days to try and diagnose the problem and Trane won't make a replacement decision until the diagnosis is complete. It's a real Catch-22.
Can anyone provide insight into this or any advise?
Thanks, David
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Davidh1977 wrote:

Sounds like the guys you got workin on your unit dont really know what they are doing....probably know enough to put one in and then get it running.....but thats it.
Probably restricted metering device which is easily checked by someone who is competant in their skills but nobody can say for sure without actually being there to check a couple of things.
Trane probably wont be much help either.....they are in the business of selling new equipment...not giving it away...and they will also stand by their dealer who sells Trane equipment.
Listen... Trane is a good brand....its the best thing on the residential market but they dont care who sells their stuff for them. Used to be that Trane dealerships were hard to get....they just wouldnt let anyone sell their product but nowadays if you got a garage and a phone Trane will set you up as an authorized dealer.
I personally would demand a new outdoor unit....threaten them with a lawyer....
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