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Is the defrost sensor included in the kit
The 7/8-inch diameter and 3-3/4-inch length ensure a compact footprint while resisting the fouling often associated with sewage level control and industrial wastewater management
This OEM Nordyne replacement part operates with an L135-30F fixed setting
A key technical advantage is the raised seat
providing reliable performance for air proving
Lennox 53K80 Fan Timer Kit 30067439-890 Is the defrost sensor includedThe Lennox 53K80 Fan Timer Kit (replaces LB 90157A) is a critical OEM replacement component engineered for precise fan motor orchestration in Lennox Pulse G21 and high efficiency furnace series. This HVAC control board integrates a sophisticated fan timer control circuit that manages the post purge and pre purge cycles of the blower motor to optimize heat exchanger thermal discharge. Designed for high duty cycle applications, the kit includes the