Nordyne 903407 Door Panel THPU32HP7Y The Reznor 221228 Switch is

The Reznor 221228 Switch is a high-tolerance single-pole single-throw (SPST) safety device engineered to verify proper venting and combustion airflow before allowing the ignition sequence to proceed

providing a more reliable connection for the pilot line

or persistent "no flame" error codes on the water heater's control board despite a good spark

What are the wiring requirements for this valve

Weatherproof Reliability: NEMA 4 rated enclosure allows for installation in varied environmental conditions without compromising electrical integrity

Nordyne 903407 Door Panel THPU32HP7Y The Reznor 221228 Switch isThe Nordyne 903407 Top Door Panel is a genuine OEM replacement part engineered specifically for Nordyne, Intertherm, and Miller gas furnaces and electric heat systems. This HVAC replacement door panel is a critical component for maintaining the pressurized combustion environment and airflow dynamics required for high efficiency operation. Built with heavy gauge steel and finished with a corrosion resistant coating, the 903407 model provides a precise