For technicians troubleshooting Reznor heater error codes or persistent flame roll-out issues

effectively interrupting the burner circuit to prevent heat exchanger damage during high-temperature events

Is the 246-424 sold as a pair or a single unit

providing a precise fit for existing system layouts

Constructed with a rugged aluminum housing and filled with environmentally safe oil

Reznor 209166 Fan Control For technicians troubleshooting Reznor heaterThe Reznor 209166 Fan Control is a critical OEM replacement part designed for specific gas fired unit heaters. Engineered with a 125 degree F fixed temperature setting, this limit switch ensures precise control over the blower motor cycle by monitoring internal heat exchanger temperatures. Manufactured to meet Thermodisc 60T82 314585 specifications, it operates as a normally open contact that closes on temperature rise, facilitating proper airflow