Description
Lennox 56W26 AUTO Limit Switch Overview
The Lennox 56W26 is an OEM automatic (AUTO) limit switch designed to protect furnaces and heating equipment from dangerous overheating conditions. With a temperature operating range of 185°F to 215°F, this limit switch monitors heat exchanger temperatures and automatically interrupts the burner circuit when temperatures exceed the safe threshold — then automatically resets once temperatures return to normal operating levels.
Key Features
- AUTO (automatic) reset operation — restores normal function once temperature drops to safe level
- Temperature range: 185°F – 215°F
- OEM Lennox replacement part (SKU: 56W26)
- Designed for use in Lennox furnaces and compatible heating systems
- Provides reliable high-limit protection to prevent heat exchanger damage and unsafe operating conditions
- Direct drop-in replacement for simplified installation
Application
This limit switch is a critical safety component in forced-air furnace systems. It is engineered to shut down the burner when airflow is restricted or when the heat exchanger reaches unsafe temperatures, preventing equipment damage and potential fire hazards. The automatic reset feature makes it ideal for systems where nuisance lockouts must be minimized while still maintaining full safety compliance.
Why Choose OEM Lennox Parts?
Using genuine Lennox OEM replacement parts ensures proper fit, function, and system compatibility. The 56W26 limit switch is built to Lennox’s exact specifications, giving HVAC technicians confidence in every installation.
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