Trane furnace repair and replacement parts

How to fix your Trane furnace when it won't heat

• Check the gas supply cut-off valve to make sure it's fully open. Open the valve if you find it shut.
• Check the thermostat setting. Turn the temperature dial on the thermostat to a position calling for heat to see if the thermostat works. Replace the thermostat if it doesn't turn on the furnace.
• Make sure the pilot burner is lit. Follow the instructions in your Trane owner's manual for lighting the pilot. Replace the pilot if it won't stay lit.
• Shut off the gas supply and check the burner orifice. Clean the burner orifice if it's clogged.
• Shut off electrical power to the furnace and check wiring connections on the thermostat, pilot light and gas valve connections. Reconnect any loose wires and repair any broken wires.
• Replace the gas valve if it doesn't open to ignite the burner.

Common Trane furnace replacement parts

• Thermocouple. The thermocouple or flame sensor is a small metallic device positioned in the flame path of the pilot light. When the pilot flame is lit, the thermocouple sends a signal to the electronic control board or gas valve indicating that the pilot is lit and that it's safe to open the gas valve for flame ignition.
• Air filter. The air filter is located at the intake of the blower assembly. It removes dust and debris from intake air.
• Blower assembly. The blower assembly is the air handler that circulates air through the heat exchanger in the furnace. It consists of an outer case, a blower motor and blower wheel.
• Thermostat. The thermostat is a temperature control device that mounts on a wall inside your home. The thermostat monitors temperature inside your home and tells the furnace when to start and stop.
• Hot surface igniter. The hot surface igniter is a small ceramic ignition device that lights the burner flame when the furnace turns on.

Find the Trane furnace parts you need at Sears PartsDirect

Sears PartsDirect is a factory-authorized seller of genuine Trane furnace parts. We have the parts you need to get your Trane furnace heating again. To find parts, enter your model number in the search bar and select the parts you need from the parts diagram.