How do you change the fan on a comfort maker furnace?

Turn off power at breaker. Take off doors. Remove screws from board and allow to hang out of the way. Remove screws from squirrel cage assembly and slide whole cage assembly forward out of furnace, Remove plug from blower motor (if there is one, if not it may be necessary to cut wires).

With assembly on floor remove blower motor bracket screws, replace motor with OEM only, make sure it is balanced and reverse process.