How to Replace a Lennox Condensation Trap?

Answer Lennox gas furnaces include a combustion blower part behind the upper access panel, which is connected to the condensation trap. The trap, also known as the condensate trap, holds a small amount of... Read More »

Top Q&A For: How to Replace a Lennox Condensation Trap

How to Replace an Air Flapper on a Lennox G-14?

The air flapper on a Lennox G-14 model furnace is connected to a gasket at the bottom of the air intake assembly. The air flapper helps control the air pressure within the furnace when it is being ... Read More »

How to Replace the Thermal Sensor on a Lennox Furnace?

Because your Lennox furnace runs on gas, it is important that safeguards are working properly. One such safeguard is the thermal sensor. This component sits next to the pilot light in the furnace a... Read More »

How to Replace a Lennox Pulse Ignition Control Unit?

Lennox manufactures a line of gas furnaces that utilize pulse ignition control units. A pulse ignition control unit is an electronic module that produces a spark for lighting the furnace burners, ... Read More »

How to Replace a Limit Switch on a Lennox Merit Series G40UH(X)?

Lennox Merit series G40UH(X) appliances are mid-efficiency, natural gas furnaces available in upflow and horizontal models. These furnaces contain internal safety devices, known as limit switches, ... Read More »