Allanson Transformers 2744-628G Transformer 30067439-890 A common cause is a

A common cause is a degraded thermopile or a clogged pilot orifice

As a genuine Trane furnace part

as the 143-16-508-00 provides a standard mechanical interface rather than an airtight secondary isolation point

this 3/4 inch relief valve utilizes a diaphragm-isolated spring chamber

electric heating elements

Allanson Transformers 2744-628G Transformer 30067439-890 A common cause is aThe Allanson 2744 628G Ferromagnetic Ignition Transformer is a high performance OEM replacement specifically engineered for Beckett A, AF, and AFG oil burners. Operating on a 240Vac supply voltage, this unit steps up to a 10,000V secondary output with a 23mA current rating, providing the high energy spark required for reliable oil burner ignition in residential and commercial heating systems. This small can series transformer features midpoint