furnace start-up noises

voodoo101 wrote:
Started getting a faint squeal for a few seconds when the fan started. It progressed to a loud one over time, lating 10 or 15 seconds, but always went away and the furnace worked. I suspected the fan was rubbing a little on the housing but now think it is the motor. Some oil on the motor bearing in the one area accessible seems to have helped, as it slowly went away. This occurred late in my summer trip and RV is in storage.
Has anyone else experienced this and did it lead to replacing the fan and motor assembly? It is a 15 year old Atwood 8500. Thanks, bill

Exactly what happened to me. I oiled but finally replaced as the squeal came back when it got cold out.. I used an aftermarket sold on EBAY for about 1/3 the factory brand. Bad decision as it causes interference on my TV when I am on 12 volt to the TV.
The one I bought was
http://www.ebay.com/itm/Atwood-Hydro-Flame-Gas-Furnace-Heater-Replacement-Motor-PF23144Q-33589-RV-Camper-/231692523265?hash=item35f1f35701&vxp=mtr