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it provides the necessary phase shift for both the compressor and the condenser fan motor
Key Benefits: Genuine OEM part ensures direct compatibility with York
reducing unnecessary service callbacks for manual resets
it maintains strict capacitance tolerances and high insulation resistance to prevent premature failure during frequent cycling
Lennox 99K63 Rollout Switch it provides the necessary phaseThe Lennox 99K63 Rollout Switch is a critical safety component designed for precise thermal monitoring in residential and commercial gas furnaces. Engineered as a manual reset rollout switch, this part is calibrated to actuate at 250 degrees F (+ 12F), immediately interrupting the burner circuit if it detects flame rollout or excessive heat concentrations outside the combustion chamber. This OEM Lennox replacement part, also identified by part number