Engineered as the direct T605DFH-4 replacement

Verify that you have 24VAC at the power input and check for proper grounding

The Williams P151800 Gasket is a critical OEM replacement component engineered for high-performance sealing within Williams Forsaire Direct Vent wall furnaces

preventing energy waste and protecting downstream equipment from condensate backup

integral time

Lennox 73K17 Limit Switch 322838-754 Engineered as the direct T605DFH-4As an HVAC technician, you know that a failed limit switch is a primary cause for furnace short cycling and overheating. The Lennox 73K17 is a genuine OEM limit switch designed specifically for Lennox, Allied, Armstrong, and Ducane heating units. This SPST normally closed high limit control features a 7 inch insertion length, making it compatible with various air handlers and furnaces, such as the G23Q5 6 series. It operates as an auto reset limit