I was called to a home to repair a split system Rheem furnace. Upon arrival, I found that the furnace was not producing heat. I checked the thermostat and found that it was not working. I checked the power supply and found that it was working fine. I checked the furnace and found that the blower motor was not working. I replaced the blower motor and the furnace started working again. I also cleaned out the furnace and replaced the air filter.