Hi,

I got a new Heil (ICP) furnace for my little brick
bungalow last spring. Heats OK (so far).

With Tstat calling for inaction, it sits there and hums.
I flip the shutoff switch and the hum dies.

Gotta be the transformer? I don't recall a transformer
hum with previous furnaces.

Is this normal? Doe it make a difference if the
transformer is Honeywell?

Thx,
Puddin'

Pease pudding hot,
Pease pudding cold,
Pease pudding in the pot
Nine days old.