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xnizstudio's avatar
xnizstudio
Explorer
Sep 15, 2019

Loud vibrating furnance

Hey guys.. these past few mornings have been cold. I had been turning the central heating furnace on in the morning and it has been fairly quiet. I could hardly hear it at all.

Today, I turned it on, and underneath the refrigerator where the unit sits, has a very loud vibrating sound. The blower is still working and the heat is still working, but it is EXTREMELY loud and vibrating the entire camper.

Any suggestions on what it could be? Since I bought the trailer, the heat has been on for maybe 10-15 minutes max. 5 minutes each morning. Its a 2007 model.

Could it have sucked some gunk up into the blower or a fan got stuck?

I plan on disconnecting the gas and removing it later today to inspect it and see if any trash has been sucked into the unit. My brother in law is also an HVAC guy and might be able to help.
  • You may have had a mouse build a nest in one of the squirrel cage blower wheels. If it didn't cover the complete surface of the wheel, the fan could still be partially working. If it's a Suburban, you have to remove it and take apart to get to the blowers. If you find nest materials in the blower which circulates the air through the trailer, you may have a mouse problem.

    Hope this helps a bit and good luck.

    Ken

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