A tripped vent switch often indicates a physical blockage in the chimney

or compressor contactors

In Nordyne HVAC systems

Set your multimeter to the Volts AC scale

Sporlan 180402P Power Element Els PW 17895 A tripped vent switch oftenThe Sporlan 180402P Power Element, also identified as the KT 46 VX100, is a critical replacement component for thermostatic expansion valves (TEV) utilized in diverse refrigeration and HVAC environments. Engineered with a large flat stainless steel diaphragm, this power head ensures precise superheat control and consistent refrigerant metering across varying load conditions. It features a 60 inch capillary tube length and is optimized for systems