Weil McLain 591-391-862 Wiring Harness Els PW 17895 the actuator must be positioned

the actuator must be positioned above the valve body and never tilted more than 85 degrees from the vertical axis to avoid moisture damage

089-inch diameter aperture

Enhanced Diagnostics: Built-in logic assists in identifying system faults

If the indoor blower runs continuously or the burners fail to ignite due to an open safety circuit

Weil McLain 591-391-862 Wiring Harness Els PW 17895 the actuator must be positionedThe Weil McLain 591 391 862 Wiring Harness is a critical OEM replacement part designed for standing pilot ignition systems in Weil McLain CG and CGa boilers. Engineered for hydronic heating service, this harness provides secondary electrical integrity between the gas valve, pilot, and control module, maintaining consistent boiler performance. In the field, a compromised harness is often the root cause of intermittent pilot ignition failure or erratic