DIY Evaporator Coil Replacement?
lambert_john
17 years ago
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Comments (17)
georgehvacnj
17 years agodavefr
17 years agoRelated Discussions
Carrier central AC evaporator coil leaking
Comments (5)Twee I would get a second opinion. Leaks at a valve are usually easy and relatively inexpensive to repair. Evap coil leaks In an air handler can be another matter entirely. Standard procedure when adding refrigerant is to include dye especially when tech did not attempt to find the leak. Let the system then run for several days and return to check coil to locate leak with proper tools. Was dye inserted? Do you even know? Yes, evap coils can be replaced in an air handler. However, usually this s not cost effective due to the expense. I assume air handler is out of warranty. IMO...See MoreNoise in liquid line after evaporator coil replacement
Comments (5)Does this happen sometimes or all the time? Depending on the size of unit,the type of metering device, the outside temperature, does it have a receiver, what temperature you have the unit set at,it can take up to 10 minutes to totally equalize. I personally don't like the answer they gave you. Perhaps they didn't feel like explaining the scenario's. Just because it's cooling doesn't necessarily mean there's no air in the system. With a cap tube metering device that would hold true for the most part. If there is air in there, you can bet you will know in short order because you will have a burn out or, as it gets consistently hotter, you will notice less cooling. If they properly evacuated the system and added filter/dryers I wouldn't be concerned....See Moreevaporation coil?
Comments (3)Ok Bob. That makes since. We usually keep it at 78 so that shouldn't be a problem Baba. No, the guy did no leak detection (I doubt he even checked it) I just got a call from the place which quoted over $1800 for a new coil. I asked if it could be repaired and he said no. When I asked if coils can ever be repaired, he said on occasion, but even when they can repairs often fail. When I asked what about my leak made it unsuitable for repair, he said the the newer aluminum ones can't be soldered and that the older copper ones have too many coils to make them accessible for repair. Though they took down my model number for the quote, he said nothing about whether mine was aluminum or copper. Also, he gave NO indication that the coil had actually been checked at all (I am now more certain that the guy just pretended to check it) The model is Trane TWE031e130a0 (I think those are all zeros) I did a websearch for that model and came up blank except for one guy mentioning one of that model being installed in 1994. House was built in the late 70s but the former occupant was a HVAC guy, so I guess he replaced the orginal. We don't know if we will be in the house for two years, 10 years or more. A new air handler would be REALLY expensive, right? Is it possible that if we called in another guy, we could get it repaired? (IS this a repairable model???) If so, how expensive might that be? If we did call in a second opinion, what questions should I ask? Am I already in extra-price quote book #2 just for getting a second opinion? Thanks Amy...See MoreIs a new permit required when changing evaporator coils in an ac?
Comments (7)Such a thing may be required now for CA codes. It wouldnt surprise me. But you wouldn't necessarily get near it when just replacing the coil. I guess I'm saying that if an overflow switch and trap were not installed when the unit went in some years ago, it is quite possible to be code mandated now for new installations. Whether old units have to be updated in your situation depends on the locality. I'll say that here a similar thing is required with water heaters. The 'new' code requires unions or some similar connection on both hot and cold, as well as a pressure tank. Any water heaters being replaced have to have the plumbing updated at the time of replacement....See Moreairsome
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