or the furnace seizing during the initial startup sequence

verifying the connector type and tube diameter is necessary to ensure a proper fit

The "/U" suffix denotes "Universal" packaging

ensuring zero-gap compatibility with 5-5/8 inch motor diameters

Can I use an aftermarket relay instead

Allanson 421-655-G Transformer 30067439-890 or the furnace seizing duringThe Allanson 421 655 G Transformer is a high performance ignition transformer engineered specifically for Power Flame burners and high demand commercial heating systems. This heavy duty unit operates on a 120Vac supply voltage, delivering a consistent 10,000Vac secondary voltage at 23mA to ensure reliable arc stabilization and efficient fuel ignition. Designed with a midpoint ground configuration, the 421 655 G minimizes electromagnetic interference