Fault - 15 - Inv. MC(PEBB1 MC21) Failure ServiceLine RNWBL Modified on: Tue, 18 Aug, 2026 at 12:04 PM Inv. MC(PEBB1 MC21)Failure - 15 - Inverter side contactor (MC21 of PEBB1) failurePossible problem : Solution(s) :