While copper is corrosion-resistant

Component Protection: Acting as a mechanical end stop

Premium American-Made Quality: Machined from domestic high-copper brass for superior corrosion resistance and durability compared to low-quality imports

Common Questions & Troubleshooting What causes this switch to trip repeatedly

York S1-025-27747-018 Rollout Switch While copper is corrosion-resistantEnsure critical safety operation in gas fired heating systems with the York S1 025 27747 018 Rollout Switch. This genuine OEM furnace safety control is engineered to monitor flame behavior and interrupt the burner circuit if temperatures near the burner box exceed its 370 degree Fahrenheit threshold. As a fundamental furnace limit switch for York, Coleman, and Luxaire equipment, this component features a manual reset mechanism, requiring a technician