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SwanInWA's avatar
SwanInWA
Explorer
Jan 06, 2017

Propane smell when furnace is running - Suburban SF-30F

We're getting a propane type smell whenever we turn on our furnace. No visible obstructions in the intake or exhaust. Did the soap check for leaking, switched to a fuller tank, but we're not having ...
aruba5er's avatar
aruba5er
Explorer
Jan 07, 2017
I would gamble you have a bad heat exchanger: look real hard at every part of it. Years ago I bought a smoke candle. You light it and it makes a ton of non toxic smoke. Then you could see if the heat exchanger is cracked. Might be hard to do on such a small unit. Or force air into the exhaust and see is you have and movement out of the heat tubes. or is the unit pipes sealed well when it's installed. so not getting any exhaust back into the rv?

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