Hydrotherm 60-5645 Control Panel Overlay 340155-7024 A tripped limit switch typically

A tripped limit switch typically results in the indoor blower motor running continuously while the burners fail to ignite

As a veteran-grade furnace burner assembly

Built with a reliable split-bobbin design

but ensuring your condenser fan motor is "speed controllable" or "PSC" is critical to prevent motor hum or overheating at lower voltages

Hydrotherm 60-5645 Control Panel Overlay 340155-7024 A tripped limit switch typicallyThe Hydrotherm 60 5645 Control Panel Overlay is a critical interface component specifically engineered for Hydrotherm KN 4 boiler systems. Designed for precise fitment on the KN series cast iron condensing boiler, this OEM replacement overlay ensures that display readouts and control icons remain legible for accurate diagnostic monitoring. In the field, high efficiency condensing units like the KN 4 rely on clear visual feedback for HeatNet control