Lennox 10M65 Limit Switch 326010-701 float-operated mechanical low water cut

float-operated mechanical low water cut off designed for superior reliability in both hot water and steam boiler applications

Is this model fail-safe

or the main burner failing to sustain a flame despite a confirmed call for heat and proper voltage at the gas water heater control terminals

7 microamps is required for the 35-655910-991 ignition control to maintain the gas valve circuit

Contractors should verify the 24V solenoid coil specifications to ensure electrical compatibility with the existing defrost board or thermostat relay

Lennox 10M65 Limit Switch 326010-701 float-operated mechanical low water cutThe Lennox 10M65 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a 135 175F AUTO limit switch, this Lennox 10M65 functions as a primary high limit control, essential for preventing heat exchanger overheating. When internal temperatures exceed the 175F threshold, the internal bimetal disc opens the circuit to terminate the heating cycle. Once the system