Coleman Mobile Home Furnace Troubleshooting. Remove the used air filter; Home:heating & cooling parts:coleman parts:coleman furnace manual.

Locate the air filter, it’s found in a slot near either the side or bottom of return air duct; The limit switches on older homes don’t have a reset button. If your blower does not turn on, first look through the viewing hole above the gas valve and see if the burners have lit.