Description
The York S1-024-41230-000 is a genuine OEM primary automatic-reset limit switch engineered to protect York furnaces from overheating conditions. This limit switch opens the control circuit at 130°F when the heat exchanger reaches an unsafe temperature, then automatically resets and closes the circuit once the temperature drops back down to 100°F — providing reliable, hands-free thermal protection without requiring a manual reset.
Key Features
- Genuine York OEM replacement part — ensures proper fit and performance
- Primary limit switch provides first-line overheat protection for the furnace
- Automatic (auto) reset — reopens the circuit at 130°F and resets at 100°F
- 30°F differential between open and close setpoints for stable, reliable cycling
- Direct drop-in replacement for compatible York heating systems
- Helps prevent heat exchanger damage, nuisance shutdowns, and safety hazards
Specifications
- Part Number: S1-024-41230-000
- Brand: York (Johnson Controls)
- Switch Type: Primary Limit Switch
- Reset Type: Automatic (Auto)
- Opens (Trip Temperature): 130°F
- Closes (Reset Temperature): 100°F
- Temperature Differential: 30°F
Application
Designed for use in York residential and light commercial gas furnaces, this limit switch is a critical safety component in the heating system. When airflow is restricted or the heat exchanger overheats, the limit switch interrupts the burner circuit to prevent damage and unsafe operation. The automatic reset feature restores normal operation once safe temperatures are achieved, minimizing downtime and service calls.
