Gas Furnace

[davonelson]

My 2006 5th Wheel gas furnace is huffing and puffing and at times vibrating. How do I fix it?

[Dave_H_M]

Gearitis wrote:
I had that problem and found a mud dobber wasp nest glued to the fan. Got it out and all is fine. And I have the screens on the exhaust. So how they got in there is a mystery.

Same here but did not have screens on. :S

Do now. 😉

[Gearitis]

I had that problem and found a mud dobber wasp nest glued to the fan. Got it out and all is fine. And I have the screens on the exhaust. So how they got in there is a mystery.

[enblethen]

Sounds like the circulation or burner fan has come loose, motor is loose in housing or bad motor.
Make and model of furnace?

[8ntw8tn]

I call a reputable RV service repairman.