Lochinvar & A.O. Smith 100277290 Rod 320819-301 leading to the element cracking

leading to the element cracking during the first heating cycle

for optimal performance and to avoid motor overload or shroud interference

Housed in a durable plated casing

meeting rigorous safety standards for high-limit or operating control

Lochinvar & A.O. Smith 100277290 Rod 320819-301 leading to the element crackingThe Lochinvar & A. O. Smith 100277290 Flame Rod is a critical safety component engineered for precise flame rectification in high efficiency gas fired heating systems. As a veteran technician knows, flame sensor troubleshooting often begins when a unit short cycles or fails to prove flame within the standard 4 second ignition window. This OEM furnace flame sensor is designed to communicate directly with the control board, converting AC voltage to a DC