What this code means

Before switching the LC on, the software checks the power bridge: it turns on alternatingly the Low side and High side Power Mosfets and expects the phases voltage to decrease down to –BATT (increase up to +Batt). If the phases voltage do not follow the comands, this alarm occurs.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

This type of fault is not related to external components; replace the controller.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (POWER MOS SHORTED), machine model and serial number — we quote genuine and OEM replacement parts for export.