sudani Posted September 11, 2022 Share Posted September 11, 2022 Hello, Working on a legacy herc with a digital fuel qty system installed. We keep getting error code E7 displayed on the L/h aux indicator. Only, the fault is intermittent. E7 is apparently a compensator fault. So far we have changed the compensator, wiring from the L/h Fwd wing pressure break to the boundary connector, and calibrated the indicator. Also, reterminations of all the connectors completed to ensure no corrosion, bad wiring.Any thoughts? Quote Link to comment Share on other sites More sharing options...
n1dp Posted September 12, 2022 Share Posted September 12, 2022 Wiring in the form of a connector in the system. Rear fuel tank bulkhead connector for sure, but also the connector going into the pressure bulkhead. One of those gave us a problem many years ago for an external tank. Wiggle wire at the connectors too. Quote Link to comment Share on other sites More sharing options...
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