Description
Goodman OEM High-Limit Switch — L190-40F
The Goodman 10250806 is an OEM replacement high-limit switch designed to protect your furnace from dangerous overheating conditions. Designated L190-40F, this limit switch is engineered to open at 190°F, interrupting the burner circuit when the heat exchanger reaches an unsafe temperature, and automatically resets once the temperature drops by 40°F — restoring normal furnace operation without manual intervention.
Key Features
- OEM Goodman replacement part — ensures proper fit and reliable performance
- Opens (trips) at 190°F to shut down burner and prevent heat exchanger damage
- Automatic reset at a 40°F differential (closes at approximately 150°F)
- Protects furnace components from thermal stress and fire hazard
- Direct drop-in replacement for compatible Goodman and Amana furnace models
- Durable construction for long service life in residential and light commercial applications
Application
This high-limit switch is a critical safety component in forced-air gas furnaces. It monitors heat exchanger temperature and cuts power to the gas valve or burner assembly if temperatures exceed the rated setpoint, preventing equipment damage, carbon monoxide risks, and potential fire hazards. Always verify compatibility with your specific furnace model before installation.
Specifications
- Part Number: 10250806
- Limit Designation: L190-40F
- Opens At: 190°F
- Reset Differential: 40°F
- Brand: Goodman (Amana-Goodman)
- Application: Forced-air gas furnaces
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