How to lubricate fan bearings in furnace?
So in our 27-year-old Winnebago Warrior, we have a Suburban NT30KLT furnace. In the last couple of years, the first time it fires up you can hear the fan bearing squalling a bit and then it quiets ...
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First, the fan has BUSHINGS, not bearings.
And in many cases, they can be lubed in place. You need light-viscosity oil such as sewing machine oil in a dispenser with LONG tip.
Place a few drops on the shaft right next to the motor. Repeat a couple of times-- the oil will "wick in".
Note: This IS true for the Atwood furnace, suspect also applies to other brands.
And in many cases, they can be lubed in place. You need light-viscosity oil such as sewing machine oil in a dispenser with LONG tip.
Place a few drops on the shaft right next to the motor. Repeat a couple of times-- the oil will "wick in".
Note: This IS true for the Atwood furnace, suspect also applies to other brands.
