the heat exchanger is bad. Get another one.
rolloff switch triggered typically means
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换新的heat exchanger还是新furnace啊?
-千里江山_USA-
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12/04/2024 postreply
06:55:33
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whole thing.
-borisg-
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12/04/2024 postreply
07:00:30
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明白了。多谢各位
-千里江山_USA-
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12/04/2024 postreply
07:04:00