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Question DetailsAsked on 5/16/2015

We've lived in our new house for 2 years, had no problems with the A/C and the cooling is very cold and efficient.

But an A/C tech doing a routine check on our thermostat told us that the evaporator coils had a leak and the entire unit had to be replaced, which is a huge part. The tech used some hand held gadget with a long plastic tube pressed against the coil that supposedly detected a leak. The part is covered by a 5 year warranty but we would have to pay for labor and we were told it could take up to 6 hours of labor to replace the evaporator coils. It does not seems right that a new A/C should need its evaporator coil replaced after only 2 years, plus there is no evidence that there is any cooling problem. Does this sound unusual?

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1 Answer


The coil having a leak, unfortunitly is not that uncommon, these days. Not noticing a loss of cooling, could happen in mild weather,if the system has not lost much refrigerant yet.

You may want to get a second opinion from the same company, or another one, to be sure.

Coils fail early due to Formicary Corrosin, google that if you want more information. Some manufacturers have been tin plating the copper and/or switching to aluminum coils for greater resistance to formicary corrossion.

Currently Carrier is replacing coils that fail in warranty with aluminum coils, so at least the replacement coil may last much longer.


Answered 5 years ago by BayAreaAC

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