I have a Ducane furnace, model#CMPE075U3, for which I have to replace the blower motor only. I have taken off the 4 nuts which seem to hold it in place, but it won't pull out. Is there something in the back holding it on?

My furnace is working but the blower motor won't turn off. I can disconnect all of the wires on the thermostat and the motor still runs. The only way I can stop the motor is to either take the face plate off which disengages the switch or to unplug the power cord. I just put a new motor on the...

Hello. I have an older central Lennox furnace/air conditioner unit that has been giving me trouble lately. I noticed one day that the blower should have kicked on. I went downstairs and found the motor to the blower was humming but the blower was not turning. I flipped the switch on the unit on...