Common Questions: How do I know if the 100074412 high limit switch is tripped

When you're out in the field servicing an R-22 system

Equip your heating and cooling systems with the high-performance ASCO 238810-032-D Coil

For standard single-stage gas or electric systems

Resideo WLD3CABLE Cable Sensor 320819-301 Common Questions: How do IThe Resideo WLD3CABLE Cable Sensor is a critical accessory for expanding the monitoring perimeter of WiFi water leak and freeze detectors. Engineered to integrate seamlessly with the Resideo L1 and First Alert L1 detectors, as well as the L5 WiFi water leak shutoff valve, this 5 foot sensing cable provides a sensitive, cylindrical detection surface that triggers an alarm the moment moisture is detected anywhere along its length. For larger mechanical