How do I fix High Temperature During Charge on a Growatt?

Check ambient temperature at battery location. ARK operating range: 0–55°C discharge, 0–45°C charge. Ensure 300mm clearance on all sides. Remove from direct sunlight Then: Allow battery to cool and charging will resume automatically. Fault self-clears when temperature returns to safe range

Growatt

ARK: Charge Hi Temp

High Temperature During Charge

Cell temperature above charging temperature protection threshold. Charging halted. BMS ALM LED flashes green.

Common causes

Ambient temperature above 45°CBattery in direct sunlightInsufficient ventilation clearances

What to check

STEP 1

Check ambient temperature at battery location. ARK operating range: 0–55°C discharge, 0–45°C charge. Ensure 300mm clearance on all sides. Remove from direct sunlight

STEP 2

Allow battery to cool and charging will resume automatically. Fault self-clears when temperature returns to safe range

Escalate if

Fault occurs in ambient temperatures below 35°C with adequate ventilation — NTC sensor fault, escalate

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