Bard 8402-116 Limit Switch 318423-701 replacing the sensor is the

replacing the sensor is the professional standard to avoid repeat service calls

they are identical parts and can be used interchangeably in any 11/32-32 threaded gas valve connection

Confirm that you are using the terminal wiring diagram specific to the 257975 DSI board rather than the older board's schematic

This potted solenoid coil is built to withstand the thermal stressors found in boiler enclosures and furnace compartments

Bard 8402-116 Limit Switch 318423-701 replacing the sensor is theThe Bard 8402 116 Limit Switch is a critical safety component designed for high temperature protection in Bard wall mount heat pumps and air conditioning units. Engineered with a fixed temperature setting of L300 30, this high limit control opens the electrical circuit when the internal plenum temperature reaches 300 degrees Fahrenheit and automatically resets when it cools by 30 degrees. This normally closed (NC) disc style switch prevents heat