MARS 19168 Potential Relay or the outdoor unit failing

or the outdoor unit failing to initiate a necessary defrost cycle

the thermocouple is likely degraded and failing to produce the required voltage to energize the valve coil

RA2000 Integration: Seamless snap-on connection for Danfoss thermostatic wall sensors and remote dials

While many switches look similar

What voltage does the 41-311 ignitor operate on

MARS 19168 Potential Relay or the outdoor unit failingThe MARS 19168 Potential Relay is a high performance motor starting relay engineered for single phase HVACR equipment requiring high starting torque. Specifically designed for 502V coil voltage applications, this 168 series relay facilitates the seamless cutout of start capacitors once the compressor or motor reaches approximately 75% to 80% of its rated speed. With a robust 35 amp contact rating and a 480 VAC maximum contact voltage, this component