2017 big horn 3160 Furn fan is noisy at start up

[scottknight1]

Any suggestions ? My furn fan sounds rickety when starting up and gets quiet as it starts pushing propane and heat. Is that normal ?
I assume not

Should I spray the fan bushing with Teflon or lithium?

 

[cookie]

First inspect the fan. I have heard of broken spokes and insect nests causing issues.
Also bad bushings. A little lube should quiet things a bit if the bushings (bearings?) are shot.

Peace
Dave

 

[scottknight1]

Thx for the tip. Do I put the lube in from the opening at the top of the furnace fan?

 

[cookie]

Dunno, whatever works.

Peace
Dave