Rod wrote:Remove the inducer motor bell housing, its held in by 3 5/16" headed screws.

is this inside the firebox? or behind the vent blower/motor?

Now that the cold season is here i have been running the furnace. it is a Nordyne M3RL 90+ Downflow Condensing Furnace. The vent switch keeps popping on it, i have to reset the button alllll the time. when it pops it wont reset right away, you have to wait 5 minutes or so to let the vent tubing cool...