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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

14

Electrolyte Circulation Defective

Fronius · Perfect Charging

What does 14 mean?

This fault indicates that the electrolyte circulation system is not functioning correctly, specifically that the pressure switch is not activating. This condition is critical for certain battery types requiring active electrolyte management to prevent issues like overheating or stratification during charging.

Common Causes

  • A faulty pressure switch in the electrolyte circulation system that fails to detect flow or pressure.
  • Blockage within the electrolyte circulation lines or a malfunction of the electrolyte pump.
  • Insufficient electrolyte level in the battery cells, preventing adequate circulation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the operation of the pressure switch by checking its electrical state when circulation should be active.

  2. 2

    Inspect the electrolyte circulation pump for any blockages, debris, or signs of operational failure.

  3. 3

    Check the electrolyte level in all battery cells and replenish if it is below the manufacturer's recommended level.

Browse all codes in this manual (61)
Verified technical data. Last updated: April 2026

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Source: Fronius Perfect Charging
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