Lennox 28G46 Limit Switch, Manual Reset, L160

A Lennox 28G46 Limit Switch monitors temperature conditions and cuts power when heat levels rise too high within the equipment.

• Installing real OEM thermostats and high limits ensures seamless compatibility with your unit's controls and connections for proper fit and function
• Fits Popular Models: GSR21Q3-50-10-10, GSR21Q4-50-7-07, GSR21Q4/5-100-4-04
• Product Type: Limit Switch
• Reset Type: Manual Reset
• Temperature Rating: L160

Common Questions and Answers

Why is the Lennox 28G46 Limit Switch a critical component in the system?

The limit switch monitors operating temperature in the heating and cooling system and interrupts the circuit when temperatures rise to its 160F setpoint, protecting the system from overheating conditions. Its manual reset design matters because it requires inspection before restart, adding a deliberate safety measure that supports reliable operation in the HVAC system.

How can I identify if the Lennox 28G46 Limit Switch might need replacement?

The limit switch may need to be replaced if the heating and cooling equipment shuts down unexpectedly, trips repeatedly or does not resume operation properly after an over-temperature event. Physical signs can include visible wear or heat damage and environmental signs may include exposure to excessive dirt, vibration or moisture that could affect sensing accuracy or reset function.