Reznor 272743 Flame Sensor 318820-201 an open circuit during normal

an open circuit during normal pressure indicates a failed switch

Durable 30-Inch Length: Extended lead provides flexibility for various appliance cabinet configurations and burner depths

The build quality adheres to strict HVAC industry standards

extending the life of existing infrastructure

when used with a standard 45

Reznor 272743 Flame Sensor 318820-201 an open circuit during normalThe 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.