This furnace high limit switch is essential for maintaining sequence of operation integrity and preventing overheating conditions in Rheem and Ruud HVAC systems

Industrial Durability: Built for commercial environments where consistent duty-cycle performance is non-negotiable

providing the structural integrity required for refrigerant piping systems

maintaining the same 1/2" solder footprint for easy field replacement

Lennox 15K88 Wiring Harness This furnace high limit switchFor field technicians and contractors maintaining Lennox furnace systems, the Lennox 15K88 Wiring Harness is a critical OEM component for restoring the Ign Control Upper signal path. This specific harness facilitates the high integrity electrical connection between the ignition control module and the upper internal components, ensuring precise liquid line pressure monitoring and signal transmission for heating cycles. In the field, having the exact