and CSP-4000 series controller-actuators

Durable Construction: High-grade copper tubing resists vibration fatigue and system pressure spikes

Is the Lennox 93J5401 the same as the 93J54

the wiring harness is often the culprit due to loose terminal crimps or internal wire breaks

This single-prong sensor is engineered to withstand high-temperature environments within the burner box

York S1-024-23224-000 Rollout Switch and CSP-4000 series controller-actuatorsThe York S1 024 23224 000 Rollout Switch is a critical safety component designed for high limit thermal protection in residential and light commercial gas furnaces. This fixed temperature limit switch is calibrated to trip at 370F, effectively breaking the 24V control circuit to the gas valve if it detects flame rollout or excessive heat buildup near the burner assembly. As a genuine OEM York replacement part, it ensures direct compatibility with