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9002

Event 9002 — SMA Grid Guard code invalid

SMA · SUNNY BOY Solar Inverters

What does 9002 mean?

The SMA Grid Guard code entered to change protected operating parameters is incorrect. As a result, the parameters remain protected and cannot be modified.

Common Causes

  • Incorrect SMA Grid Guard code entered by the user.
  • Typographical error during code entry.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Carefully re-enter the correct SMA Grid Guard code.

  2. 2

    Ensure you are using the most up-to-date SMA Grid Guard code.

  3. 3

    If you do not have the correct code, contact a qualified installer or SMA Service.

Browse all codes in this manual (31)
Verified technical data. Last updated: April 2026

Related Faults

1501Event 1501 — Reconnection fault, grid data mismatch301Event 301 — Grid fault, voltage out of range3301, 3303Event 3301 or 3303 — Unstable operation, insufficient DC power
Source: SMA SUNNY BOY Solar Inverters
Open Manual (Page 58)Search more codes in this manual