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THANKS! New furnace is running great so far today. I'm just a bit scared of the "new technology"... hope it's problem free!

Blocked / clogged heat exchanger is the diagnosis (from 2 reputable fuirnace companies). There is a bulletin about my furnace... guess it's a common problem. These older Bryantc 90plus's are junk I...

No blockage found. No problem with draw from blower fan. Combustion chamber area is getting very hot (by rollout switch)... Could it be a blocked / plugged heat exchanger??

Thanks... nothing is blocked (supply / returns) and all vents are open. I will try to borrow an amp probe tomorrow, but main blower air volume feels the same as before...

(The furnace filter was...

Hello, On Wednesday the furnace stopped heating (Bryant 90plus model 340MAV) . Checked error code. It said reset flame rollout switch. I did. Furnace worked fine for 2 days, then the same thing...