I haven't heard of this problem yet, but I can't believe I am the only one that has experienced this, but maybe others have the problem, they just don't know it yet. We experienced a severe thunderstorm, heavy slashing rain, strong winds and hail. Afterwards the temperature dropped and the furnace didn't work. It cycled through the start up process, but no ignition. When I opened the furnace cover, there was water inside. A few drops on the circuit board, a little scattered around, and a small puddle on the bottom. I dried everything out and when it still didn't work, I systematically went through trying to figure out what was the problem. The Limit switch, Sail switch and circuit board were all fine (I carry a spare circuit board, so I could swap it out). The circuit board signaled "ignition lockout fault". When I started to loosen up the burner assembly, water came gushing out. Rather than taking it all apart, that seemed like the problem, so I just let the water drain, and gave it time to dry out it. Still no ignition, so I pulled out the burner and this is what I found! Obviously this wasn't the first time water had been sitting in there. I tried to find a replacement in the nearest city, no luck, and it would be days to months for it to be ordered. One parts guy suggested trying to clean it up. My wife suggested using "Bar Keepers Friend", and it cleaned up pretty well. The furnace works again!!
It strikes me to be a design flaw that water can be blown into the burn chamber through the exhaust pipe. I don't know if they have a fix for it, but we will probably keep tape over it during the seasons we don't use it, and cover it when rain is expected. I would have never guessed this could happen.
Dave
It strikes me to be a design flaw that water can be blown into the burn chamber through the exhaust pipe. I don't know if they have a fix for it, but we will probably keep tape over it during the seasons we don't use it, and cover it when rain is expected. I would have never guessed this could happen.
Dave
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