"Meat Plow" wrote in message
news
On Sun, 18 Jul 2010 22:24:37 -0500, The Daring Dufas wrote:
The buzzing is caused by a bit of rust or believe or not an insect
caught in the armature of the contactor.
nods
Heard this sound many, many times. Doesn't take much rust on the
laminated core of the contactor or the plunger to make them hum.
Thanks for all of the great information guys!