Description
York S1-373-13300-604 AUTO Limit Switch Overview
The York S1-373-13300-604 is an OEM automatic (AUTO) limit switch engineered to protect furnaces and heating systems from dangerous overheating conditions. With a temperature range of 105–165°F, this limit switch opens the circuit when supply-air or heat exchanger temperatures exceed the upper setpoint of 165°F and automatically resets once temperatures fall back to 105°F — providing continuous, hands-free protection without the need for manual intervention.
Key Features
- AUTO (automatic) reset operation — no manual reset required
- Trip temperature: 165°F
- Reset temperature: 105°F
- Temperature range: 105–165°F
- Genuine York OEM replacement part
- Direct drop-in replacement for compatible York heating equipment
- Helps prevent heat exchanger damage and fire hazards caused by overheating
Application
This limit switch is a direct OEM replacement designed for use in York furnaces and heating systems. It monitors air or component temperatures and interrupts the burner circuit when unsafe temperature thresholds are reached, safeguarding the heat exchanger, blower components, and surrounding structure. The automatic reset feature makes it ideal for installations where repeated manual resets would be impractical.
Why Choose OEM York Parts?
Using genuine York replacement components ensures proper fit, reliable performance, and compatibility with your existing equipment — helping maintain manufacturer warranties and system efficiency. Always verify your unit’s model and wiring diagram before installation.
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