Lennox 36M63 Limit Switch mario ensuring the compressor remains protected

ensuring the compressor remains protected against thermal overload and mechanical failure during extreme head pressure conditions

Replacement is typically required if the first check valve fails a certified backflow test

Always check your furnace's wiring diagram to ensure voltage compatibility before installation

Versatile Installation: Uni-Kit design is supplied with terminals that can be mounted in four different positions to match existing field wiring

Lennox 36M63 Limit Switch mario ensuring the compressor remains protectedThe Lennox 36M63 Limit Switch is a critical safety component designed for precise thermal monitoring in HVAC residential heating systems. This L130 20F limit switch features a fixed temperature setpoint, engineered to open the electrical circuit at 130F and automatically reset when the temperature drops to 110F. As a genuine OEM replacement part, it ensures seamless furnace limit control, maintaining high limit safety standards to prevent heat