Reznor 272743 Flame Sensor 320819-301 Reliable Media Handling: NBR seals

Reliable Media Handling: NBR seals provide excellent compatibility with water and light oils up to 180°F

Does this strainer require periodic cleaning

Check your boiler's model and series number

Proper installation of this chimney draft regulator reduces soot buildup and prevents high-limit trips by maintaining steady airflow through the combustion chamber

Constructed with a rugged aluminum body and NBR seals

Reznor 272743 Flame Sensor 320819-301 Reliable Media Handling: NBR sealsThe Reznor 272743 Flame Sensor is a critical safety component designed for precise rectification in Reznor unit heaters and power vented systems. This genuine Reznor OEM part is engineered to withstand the high temperature environment of the combustion chamber, ensuring consistent flame signal detection for the ignition control board. As a veteran technician knows, a fouled or degraded sensor is a primary cause of short cycling and nuisance lockouts.