I have a York Affinity 5 ton split system model number YZE06011A with coil model MC60D3XH1A. R-410A system. It was put into service in Feb-2007 when we built our house. The furnace is in the attic.
Service history:
coil replaced 8/18/2010
added freon 3/29/2012
replaced service port valve down assembly 7/09/2012
coil leaking again 4/19/2013
The first coil was a blue fin. The currently failed coil isn't blue fin but still has copper tubes. York won't fix since warranty was only 5 years & this is 6 years old. Their replacement is the same piece of dung with plain copper tubes that resulted in the second one failing after 2.5 years. Cost would be ~ $900 including $550 for coil.
Formicary corrosion (ant's nest) is the root cause of both coil failures. I don't know if it was internal or external to the coils though. If external, then not much I can do to reduce the organic acids in the ambient air. If internal, then doesn't matter b/c I'm not getting another coil from York anyway.
I realize that formicary corrosion is an industry wide problem but some mfg have implemented some sort of solution by either tin coating the copper or moving to an all aluminum coil. I'm trying to find another brand but fit might be an issue.
What would be your recommended course of action?
Service history:
coil replaced 8/18/2010
added freon 3/29/2012
replaced service port valve down assembly 7/09/2012
coil leaking again 4/19/2013
The first coil was a blue fin. The currently failed coil isn't blue fin but still has copper tubes. York won't fix since warranty was only 5 years & this is 6 years old. Their replacement is the same piece of dung with plain copper tubes that resulted in the second one failing after 2.5 years. Cost would be ~ $900 including $550 for coil.
Formicary corrosion (ant's nest) is the root cause of both coil failures. I don't know if it was internal or external to the coils though. If external, then not much I can do to reduce the organic acids in the ambient air. If internal, then doesn't matter b/c I'm not getting another coil from York anyway.
I realize that formicary corrosion is an industry wide problem but some mfg have implemented some sort of solution by either tin coating the copper or moving to an all aluminum coil. I'm trying to find another brand but fit might be an issue.
What would be your recommended course of action?
