On Jun 27, 4:31 pm, wrote:
I have a G50UH gas furnace by Lennox. My blower motor is making a
high pitched humm. The air filter on the intake is clean. There is
no oil and there isn't a belt. What could be making the noise? Do I
need a new blower motor??

Thanks.

Joe O'Connell

It's possible, even likely. Check with the furnace guru at www.arnoldservice.com.
They sould have the answers and the parts. Good luck.

Joe