Growatt
ARK: Precharge SC

Pre-Charge Short Circuit

Short circuit detected during pre-charge sequence. BMS ALM LED flashes red. Safety shutdown.

Short circuit in DC wiring from battery to inverterInternal inverter DC input faultDamaged battery output cable
STEP 1
STOP. Do not re-energise. Inspect all DC wiring from battery to inverter for short circuits or damage. Check inverter HV DC input terminals for contamination or short
STEP 2
Only re-energise after confirming no short circuit is present. Use a multimeter to confirm insulation between + and - before reconnecting
Any confirmed short circuit — do not reconnect until wiring is replaced. If wiring is confirmed fault-free and fault persists, escalate — internal battery or inverter fault
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