humming noise in the furnace when it's on standby

Started by robstar, December 21, 2013, 09:56:03 PM

Previous topic - Next topic

robstar

hi, my furnace is making a humming noise when on standby (off cycle)
any help is pretty much appreciated.

Admin

What kind of furnace is it?  

I would take off the blower door and push in the door switch and try to pin point the noise.  It could be the transformer if it's secured to something metal.  I have seen alot of ICP furnaces with noisy transformers.  

Try removing the screws holding the transformer in place and see if noise stops.

robstar

it's york affinity

I did exactly what you said i put a rubber underneath the transformer and it works noise gone.

thanks, Admin