This unit has worked almost flawlessly since 1999, but now has devloped major problems. The local Lennox service company is now a regular visitor, and my mailbox is filling with service bills. The unit cannot turn on and "backfires" attempting to do so; it is also leaking water. From surfing the net, I am getting the idea that these units fail totally sooner or later, most often from leaks into the combustion chamber.
If I cannot negotiate something with Lennox, I will have to replace the unit, but this time with a separate furnace and hot water heater (the old fashion way). Is a Lennox AC unit compatible with a Carrier or Trane furance, or will I have to replace the CompleteHeat with another Lennox?
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