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I have a 5 year old Carrier 2 Ton hvac system and heard that the CK5B N Coil has been know to have issues. I had the system looked at a year ago and the coolant was low. They added coolant but never looked inside the unit. They came out in the winter for a second service call and didn't find much loss of coolant. (probably because unit wasn't used in the winter) Just last week same issue started and company came out and finally after pushing to have the unit opened so that you could see the coil it was found to be very deteriated/rusted. The sensor tool did not go off with a high amount of coolant leak detected though. They did not find any other visible signs of coolant leak outside or inside. Just the large deteriation. They are charging me $500 to replace the coil. Is that a good price? It should include the recharge of coolant. Plus a $89 service call. I'm wondering why they did not open/find this last year when I signed on for the $160 service agreement for a twice of year check? I'm hoping this coil (under warrently, the $500 is labor only) will fix the leak issue? Is this Carrier Coil known to be defective? The level of deteriation after 4 summers use is like it was sitting outside in the rain for all those years. Parts of the metal can be just pressed off so rusted. Seems like parts and labor should have been warrentied by Carrier? I can't find a recall or anything on this. Any thoughts to what I'm doing and paying is the right direction?

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We have noticed some of these same problems in TEXAS.. the coils have a potential to leak earlier than their expected lifetime but the problem is not severe enough for government to force a recall unfortunately... Maybe in 10 years... grrr right ? .. That price is good for materials and labor to change the part under warranty and most system checks for service agreements do not include looking for a leak.. usually just cover a pound or two of refrigerant.. I hope this helps.. the new coils are awesome..

Posted on Sep 01, 2010

  • jmdatl123 Sep 01, 2010

    Thanks so much for the comments! Guys installed the new coil today. New pressure gage included on new coil! When old coil was pulled out there was a few small holes in the back. they flushed the line and pressurized the line and the run from HVAC to outside tite. So hopefully this will solve this over a year issue. I'm shocked that a service contract wouldn't include looking for a leak. Strange. Just putting more refrigerant in is a patch and not a solution. If they opened the panel last year they would have seen all that deteriation and it would have been done already. Thanks for the comment!

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