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Set your multimeter to the DC microamp (µA) scale and connect it in series between the flame sensor terminal and the control board wire
or a complete lack of movement despite receiving a 24V signal on the G terminal
ensure the control harness is inspected for thermal damage to prevent premature module failure during installation
while the drain-through design flushes away internal particulates
Trane CAB1157 Control 322838-754 Set your multimeter to theThe Trane CAB1157 is a critical OEM wire harness designed for precise power distribution and signal transmission within commercial and residential HVAC systems. Functioning as the primary power control cable, this component ensures seamless communication between the main controller and peripheral hardware like sensors or mechanical relays. Built to Trane technical specifications, the assembly features a 2 x 3 plug configuration combined with
