York S1-025-29093-002 120-150F AUTO Limit Switch

York S1-025-29093-002 AUTO Limit Switch Overview

The York S1-025-29093-002 is an OEM automatic limit switch engineered to protect York furnaces and heating systems from dangerous overheating conditions. Designed to open the control circuit when temperatures reach the upper threshold and automatically reset once safe operating temperatures are restored, this limit switch delivers reliable, hands-free protection for residential and light commercial heating equipment.

Key Features

• AUTO (automatic) reset operation — no manual intervention required after the unit cools
• Trip temperature: 150°F — opens circuit to shut down burner on overheating
• Reset temperature: 120°F — automatically restores circuit once safe temperature is reached
• OEM York replacement part (SKU: S1-025-29093-002) for precise fit and function
• Protects heat exchangers, blower assemblies, and downstream components from thermal damage
• Direct drop-in replacement for compatible York furnace models

How It Works

The limit switch continuously monitors the temperature within the furnace plenum or heat exchanger area. If the temperature rises to 150°F — indicating a restricted airflow, blocked filter, or other fault condition — the switch opens, interrupting the burner circuit and preventing further heat buildup. Once the system cools back down to 120°F, the switch automatically resets, restoring normal operation without requiring a service call for manual reset.

Application

• Compatible with select York furnaces and heating systems
• Ideal for residential and light commercial HVAC applications
• Recommended for use as a direct OEM replacement to maintain system warranty and performance

Why Choose OEM York Parts?

Using genuine York replacement components like the S1-025-29093-002 ensures compatibility, reliability, and consistent performance. OEM parts are manufactured to the same specifications as the original components, reducing the risk of callbacks and ensuring your equipment operates safely and efficiently.