typically in the thermostat wiring or a failing contactor coil

A: The integrated flame sensor ensures the main burner safely shuts down if the pilot flame is not properly established

the Belimo B320B valve is a solid choice

and high-integrity O-rings ensures an airtight seal and reliable pressure regulation

Trane SWT2978 Pressure Switch 322838-754 typically in the thermostat wiringThe Trane SWT2978 is a heavy duty dual pressure switch engineered for precision safety monitoring within residential and commercial HVAC units. This OEM replacement part is built to monitor critical pressure thresholds, providing a vital safeguard for the compressor and combustion blower. Operating on a 24V AC power supply with an 18A current rating and 28VA pilot duty, it ensures reliable electrical signaling to prevent system strain during high or