The York S1-025-22273-001 is an automatic reset limit switch engineered to protect furnaces and heating equipment from overheating conditions. Designed as a genuine York OEM replacement part, this limit switch trips at 150°F to shut down the heating system when temperatures exceed safe operating thresholds, then automatically resets at 110°F once the system has cooled to a safe level — eliminating the need for manual intervention and minimizing system downtime.
How It Works
The auto limit switch continuously monitors heat exchanger or plenum temperatures. When the sensed temperature reaches the 150°F trip point, the switch opens the circuit to the burner or blower controls, preventing damage to the heat exchanger and surrounding components. Once temperatures fall back to 110°F, the switch automatically closes and restores normal operation.
Key Features
- Genuine York OEM replacement part — ensures proper fit and function
- Automatic reset operation — no manual reset required after cool-down
- Trip temperature: 150°F
- Reset temperature: 110°F
- Protects against furnace overheating and heat exchanger damage
- Direct drop-in replacement for compatible York heating systems
Application
- Compatible with York furnaces and heating units requiring the S1-025-22273-001 limit switch
- Ideal for residential and light commercial HVAC applications
Why Choose a Genuine York OEM Part?
Using genuine York OEM components ensures your equipment operates within manufacturer specifications, maintains warranty compliance, and delivers the long-term reliability your customers expect. The S1-025-22273-001 is built to York’s exact tolerances for a precise, trouble-free installation.
