Beckett Igniter 21789U Valve Assembly R-22 The GM40AV-W relies on line

The GM40AV-W relies on line power for timing

A failed coil will show open resistance (Infinite Ohms) when tested with a multimeter

engineered for 2-stage furnace applications requiring precise gas furnace pressure switch calibration

the 72-inch rod is designed to be trimmed by the contractor to fit the specific depth requirements of the installation vessel

Beckett Igniter 21789U Valve Assembly R-22 The GM40AV-W relies on lineFor the seasoned contractor, the Beckett 21789U Valve Assembly is your go to housing mount igniter valve for dependable oil burner operation. This precision engineered component, designed specifically for oil burner ignition systems, ensures consistent fuel delivery and reliable ignition performance in both residential and commercial heating applications. Crafted from high grade, durable materials, the 21789U is built to withstand rigorous burner