Use an ohmmeter to check resistance

Common Questions: What is the difference between an 'L' and 'F' White-Rodgers control

Technicians should cross-reference the part number on the heater kit data plate or the model number of the furnace

This HVAC temperature sensor is designed to trigger at specific thermal thresholds

this dual section motor run capacitor is engineered for continuous duty in HVACR systems

Lochinvar & A.O. Smith 100135300 Main Burner 30067439-890 Use an ohmmeter to checkAs a veteran technician, you know that maintaining high efficiency combustion requires precision components. The Lochinvar & A. O. Smith 100135300 Main Burner is the direct OEM replacement burner for failing or carbon fouled units in commercial water heaters and boilers. This specific gas burner assembly is 100% identical to the BNR3417 and is engineered for Lochinvar Copper Fin and EnergyRite models, specifically those within the 400,000 to 750,000