I have a Goodman GMT-070 furnace that makes a very loud humming noise when it turns on. It also isn't heating. Any ideas as to what may be causing this? Motor? Transformer? I'm not going to try to repair it myself, but how much should I expect to pay a professional?
Goodman Furnace humming and not heating
Feb 17, 2006
4 Replies
This is Turtle.
It is very hard to tell what it is but could be a blower motor bearing bad on the motor and just humming and stuck.
How much will it cost. ask the company you called what does a service call cost. they will tell you
I rarely ever see a GMT blower motor bearing go out.
TURTLE
flue blower noisy bearing failure? sometimes test is: for one minute have your licensed electrician or certified hvac repairman jump the switch at the end of the flue blower's suction tube?
4 page pdf specs at:
formatting link
literature picture at:
formatting link
general everybody's furnace Q & A here:
formatting link
Hi, Made sure fan is running when it's humming like that? Starting cap. gone? Any trouble code?
very loud humming noise
ideas as to what may be
to try to repair it
professional?
How old is it? the parts should be warranteed for 5 years. you will have to pay labor.a couple hundred if it's the blower motor.
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required