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3801, 3802, 3805

Event 3801, 3802, or 3805 — DC overcurrent detected

SMA · SUNNY BOY Solar Inverters

What does 3801, 3802, 3805 mean?

The inverter has detected an overcurrent at its DC input and briefly interrupts feed-in operation as a protective measure. This indicates that the PV array might be supplying too much current, potentially beyond the inverter's limits.

Common Causes

  • PV array incorrectly rated for the inverter's maximum input current.
  • Incorrect wiring of the PV array, leading to unexpected current levels.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If this message is displayed frequently, ensure that the PV array has been correctly rated for your inverter's specifications.

  2. 2

    Verify that the PV array has been wired correctly according to the installation manual and electrical codes.

  3. 3

    If the problem persists, contact your installer to check the PV array design and wiring configuration.

  4. 4

    Avoid connecting additional PV modules without verifying compatibility with the inverter's current limits.

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 53)Search more codes in this manual