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26

Auxiliary Power Supply Fault — The Auxiliary Power Supply has shut down

Schneider Electric · MPPT 80

What does 26 mean?

The Auxiliary Power Supply has shut down, indicating a fault. This may require manual clearing.

Common Causes

  • The Auxiliary Power Supply has shut down.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the power source for the Auxiliary Power Supply.

  2. 2

    Inspect wiring and connections to the Auxiliary Power Supply.

  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 54)Search more codes in this manual