Technicians should check for continuity across the terminals when the system is off

or loose terminal connections creating excessive heat at the breaker bus bar

the female mating connector is typically sold separately or salvaged from the existing wiring harness during replacement

Nuisance Lockout Prevention: Accurately senses current drop to de-energize oil failure cutout controls like the P28

Johnson Controls P10FC-4 Pressure Control 30067439-890 Technicians should check for continuityLow Pressure Control, Two Stage, SPDT Contact Action, 3 20 PSIG Range, 8 PSIG Factory Setting Low Stage ( R to Y Cutout ), 12 PSI Factory Setting High Stage ( R Y Cut In ), 2 PSI Low and High Stage Switch Differential, 1 8" Barbed Fitting Pressure Connector, Visible Range Scale