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Red LED flashing

Flashing red LED - Backup power overload

Fronius · Primo GEN24 Inverters

What does Red LED flashing mean?

A flashing red light indicates that the inverter's backup power function is experiencing an overload. This means too much power is being drawn from the backup circuit.

Common Causes

  • Too many appliances connected to the backup power circuit
  • High-power appliance attempting to operate on backup power
  • Short circuit on the backup power circuit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Disconnect some non-essential loads from the backup power circuit.

  2. 2

    Reduce the power demand from appliances connected to the backup power.

  3. 3

    Check the total wattage of devices connected to backup power and ensure it is within the inverter's specified limits.

Browse all codes in this manual (17)
Verified technical data. Last updated: April 2026

Related Faults

1030Status Code 1030 - WSD Open (flashing red LED)1083Status Code 1083 - Insulation warning1173Status Code 1173 - ArcContinuousFault (flashing red LED)
Source: Fronius Primo GEN24 Inverters
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