York S1-026-34027-000 Roll Out Switch

The York S1-026-34027-000 Roll Out Switch is a critical furnace safety limit designed to detect abnormal combustion conditions. As a specialized bimetal flame rollout limit switch, it monitors the burner area for escaping flames or "rollout" caused by heat exchanger failure, restricted venting, or flue blockages. Rated for 300 degrees Fahrenheit, this manual reset switch terminates the electrical circuit to the gas valve when thermal thresholds are exceeded, preventing hazardous overheating or fire. This genuine York OEM replacement part provides exact compatibility for various residential furnaces and serves as the direct replacement for York S1-2702-3191.

• Precise Thermal Safety: Engineered with a 300°F temperature rating to intervene immediately during combustion bypass.
• Manual Reset Mechanism: Requires a physical inspection by a technician before the system can restart, ensuring underlying causes like cracked heat exchangers are addressed.
• Direct OEM Fitment: Replaces York S1-2702-3191 and fits popular furnace models including 6MG04 and 6MG03.
• Contractor-Grade Construction: Built for high-reliability in demanding heating environments to maintain rigorous safety standards.

Why does the York S1-026-34027-000 switch keep tripping?
Repeated tripping typically indicates a serious venting issue or air pressure imbalance within the combustion chamber. Check the heat exchanger for cracks and verify that the flue or chimney is free of obstructions.

Can I bypass this rollout switch for troubleshooting?
No. Bypassing a flame rollout switch is dangerous and violates safety codes. If the switch detects a rollout, the system must remain disabled until a technician confirms the flame is correctly contained within the burners.

Is this compatible with York S1-2702-3191?
Yes, the S1-026-34027-000 is the standardized OEM replacement for the discontinued S1-2702-3191, offering the same 300 degree limit and mounting configuration.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.