I had a customer with a Nordyne 90+ 80,000 btu that keep tripping the limit switch on the venter. Another Company wanted to replace furnace stating internal issue with heat exchanger. I did a little research and found that this disc is known to disintegrate and just not be there, and causing to much heat to be pulled thru venter. Installed this and flue temperatures dropped by 20+ degrees and works properly now.
Plumber63
Waterloo, IN
11 years ago
Verified Buyer
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