Johnson Controls F261KAH-V01C Flow Switch 30067439-890 the heat relay sequencer is

the heat relay sequencer is likely the culprit

While the clamp provides the primary structural support

and the majority of models from A

featuring an angled probe measurement of 0

This gas burner spark igniter features a 9

Johnson Controls F261KAH-V01C Flow Switch 30067439-890 the heat relay sequencer isThe Johnson Controls F261KAH V01C Flow Switch is a heavy duty liquid flow switch engineered to provide reliable signal transmission to HVACR controls and industrial equipment. This unit serves as the direct OEM replacement for legacy models F61KB 11, F61FB 1, and IFS 1. Equipped with a NEMA 3R enclosure, it is suitable for indoor and outdoor installations where protection against rain or moisture is required. The internal SPDT switch supports high