External AC Contactor Malfunction

What does F72 mean?

This Manual Fault occurs when the External AC Contactor or a latching relay within the Battery Control System (BCS) is not in its expected commanded state. This signifies a failure in the external AC power path control, impacting power flow.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   For Contactor: Check for fusing of coil, damaged or broken wiring and connections, and damaged inverter aux port.

2. 4

   For BCS: Check for broken (welded) contactor/relay, damaged or broken wiring and connections, and damaged inverter aux port.