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Diagnosing and Replacing a Victron Unit on a 12-Metre Yacht

February 25, 2025
interiores-de-una-unidad-victron-de-2000w — marine electronics installation for yachts

Diagnosing a Victron Unit on a Grand Banks-Style Yacht

We recently worked on a Grand Banks-style motor yacht of approximately 12 metres where the owners were experiencing battery charging problems. The equipment involved was a Victron combined unit rated at 2000W, 12V, 80A, which was no longer operating correctly.

Identifying the Fault

As with any marine electrical issue, the first step was a detailed inspection of the installation. We checked:

  • The connections and terminals at the unit.
  • The condition and sizing of the cabling.
  • The settings and configuration of the Victron system.

After completing these checks, we confirmed that the unit had an internal fault that prevented the batteries from charging correctly.

Replacement and Configuration

We installed a new unit and made sure that every part of the system was set up properly. The work included:

  • Clean, secure and correctly tightened electrical connections.
  • Correct configuration using a laptop.
  • Charging tests to verify stable and reliable system performance.

Once the replacement was completed, the yacht’s electrical system operated correctly again, restoring dependable onboard power for the owners.

Why Accurate Diagnosis Matters in Marine Electronics

In marine electrical and electronic systems, accurate diagnosis is essential. It avoids unnecessary replacement of equipment, protects the battery bank and improves safety on board. A combination of technical knowledge and hands-on experience helps prevent larger failures and keeps critical systems operational.

Need Assistance with Your Marine Electrical System?

If you are experiencing battery charging issues or electrical faults on board, we can help. Contact us to restore confidence in your equipment. Click here for more information.