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Common Questions: Is this part suitable for natural gas
maintaining compatibility with existing 2-pole 40-amp circuit configurations
Key Benefits Optimal Thermal Sensitivity: The 1/2" bimetal disc provides rapid reaction times to temperature fluctuations
This model is the direct replacement for 43-25133-05
This furnace high limit switch features a 170
Lennox 56M13 Control Limit Common Questions: Is this partThe Lennox 56M13 Control Limit is a critical high temperature safety component engineered for precision in gas furnace and HVAC system applications. This SPST (Single Pole Single Throw) switch provides indispensable protection by monitoring heat exchangers and duct temperatures, ensuring reliable safety shutoff during overheating events. This specific Lennox limit switch is often identified as 56M1301, confirming precise OEM replacement compatibility
