Furnace Heat Exchanger - Replace or Repair

mzikra007 wrote: ↑ Was getting my furnace maintenance done and was told that the heat exchanger in my furnace is "defective". Technician shut my system off, and recommended that I replace my whole furnace. Was told that replacing the Heat Exchange would cost more than $1500. I asked him to take a video of heat exchange to show me why it's defective. Here's the video. I'm thinking of getting a second opinion, but wanted to get some feedback here. Should I repair or replace?

My Furnace is 11 years old (Carrier Brand).

engineered wrote: ↑ Was there an issue that caused you to get your furnace maintenance done in the middle of winter?

mzikra007 wrote: ↑ No specific issue. I'm on a yearly maintenance plan that includes maintenance, and so had to get it done before the end of the month.

mzikra007 wrote: ↑ No specific issue. I'm on a yearly maintenance plan that includes maintenance, and so had to get it done before the end of the month.

pken818 wrote: ↑ Same situation
My Furnace is 11 years old (Carrier Brand)
Replaced Heat Exchange Part labour: 1K.
Technician checked other parts are ok.
He plugged and I'd bet the CO in your venting is in the 4500's(outside). That is mean not good for health.
Less than 1K. replaced Heat Exchange

thunderbolt wrote: ↑ when the heat exchanger is replaced, are both primary and secondary replaced at the same time under carrier extended warranty, or just the secondary?

1chinaman wrote: ↑ If the secondary hx has failed, best practice is to replace primary at same time since you have it out already. Minor additional labour. Carrier will supply primary under warranty.

retrovette wrote: ↑ Like Hexavalent mentioned, this is a known problem with that furnace so Carrier has extended the warranty on the parts.
It's a big job so the labour cost is significant.
Just last fall my son paid $750 labour to have both heat exchangers replaced.
Now you know what needs to be done best to call around for quotes.

newlyborn wrote: ↑ Please don't get me wrong . Just wondering have you ever replaced a primary HEX or seen anyone replacing it as you quoted its a minor additional labour?
Do you know Carrier can actually deny the warranty claim and the installer will be out of his pocket at least 1200 $ ?
P.S : Carrier HEX unlike other brands do not come in single piece. Its rare though that primary HEX is defective and Carrier knows about it. They very much can ask for a physical HEX to be retruned to them for inspection when in doubt for warranty claims. So beware.