Description
The Carrier 338085-758 is an OEM replacement limit switch designed to protect your furnace from overheating conditions. Designated L210-20F, this thermal limit switch opens the circuit at 210°F to shut down burner operation when unsafe temperatures are detected, and automatically resets (closes) at approximately 190°F once the system has cooled to a safe level — providing a 20°F differential for reliable, stable operation.
Key Features
- OEM Carrier replacement part — engineered for precise fit and function
- Opens at 210°F to interrupt burner operation during overtemperature events
- 20°F differential — resets (closes) at approximately 190°F for stable cycling
- Protects heat exchanger and furnace components from thermal damage
- Direct drop-in replacement for compatible Carrier furnace models
- Durable construction for long service life in residential and light commercial applications
Product Specifications
- Part Number: 338085-758
- Type: High-Limit Thermal Switch
- Designation: L210-20F
- Open Temperature: 210°F
- Differential: 20°F
- Reset Temperature: ~190°F
- Brand: Carrier
Application
This limit switch is a critical safety component in Carrier forced-air furnaces. It monitors supply air or heat exchanger temperatures and interrupts the gas valve or burner circuit if temperatures exceed the rated threshold, preventing equipment damage and potential fire hazards. Always verify compatibility with your specific furnace model before installation.
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