York S1-025-31834-000 Limit Switch Key Benefits: Precise 240V Actuation:

Key Benefits: Precise 240V Actuation: Engineered specifically for high-voltage control circuits to ensure reliable heat pump reversing valve operation

while a shift toward yellow warns of moisture contamination

This straight flame sensor utilizes flame rectification technology to provide steady DC microamp signals to the integrated furnace control (IFC)

If the motor has failed

ensuring it handles everything from glycol loops to above-ground potable water supply without risk of contamination or premature fatigue

York S1-025-31834-000 Limit Switch Key Benefits: Precise 240V Actuation:The York S1 025 31834 000 Limit Switch is a critical OEM safety component engineered for narrow tolerance thermal protection in York HVAC systems. As a manual reset (M R) limit switch, this device is designed to interrupt the electrical circuit and lock out the ignition sequence if internal temperatures exceed the 160F open temperature setpoint. This ensures the unit does not attempt to recycle under unsafe conditions, protecting the heat exchanger