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78

Output Over Current Fault — The DC Output current is too high

Schneider Electric · MPPT 80

What does 78 mean?

The DC output current exceeds the safe operating limit, causing a fault. This can prevent charging and may require manual clearing.

Common Causes

  • The DC Output current is too high.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the connected loads to ensure they do not exceed the device's maximum output current rating.

  2. 2

    Inspect the output wiring for any shorts or damage.

  3. 3

    Manually clear the fault if possible after confirming the condition has resolved.

  4. 4

    If the issue persists, contact support.

Browse all codes in this manual (34)
Verified technical data. Last updated: April 2026

Related Faults

10Output Under-voltage Immediate — The DC Output Voltage is too low11Output Under-voltage — The DC Output Voltage is too low2Capacitor Over Temperature — The Capacitors are too hot
Source: MPPT 80
Open Manual (Page 55)Search more codes in this manual