For technicians performing system dehydrating after a compressor burnout or routine maintenance

For facility managers and HVAC contractors

Enhanced Precision: Blue liquid-in-glass fill provides clear

which can lead to erratic flame signals or combustion instability

Lennox 75W43 Thermal Switch 323080-701 For technicians performing system dehydratingThe Lennox 75W43 is a high precision compressor thermal switch engineered for critical temperature regulation in industrial and residential HVACR systems. As a genuine OEM component (Manufacturer Number 103048 01), this HVAC thermal protection switch prevents catastrophic equipment failure by monitoring operational heat levels. It features a specified open temperature range of 239F to 257F, which interrupts the electrical circuit to protect the