Oxidized oxygen sensor cable causes unstable or missing readings
Oxidation on the oxygen sensor cable may lead to signal loss or internal electronics damage. Follow the steps below to assess the situation safely.
Possible causes
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Expired or end-of-life oxygen sensor leaking corrosive electrolyte — replace sensors according to the manufacturer's recommended service interval
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Prolonged exposure to high humidity
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Galvanic corrosion at connector contacts
⚠️ Warning: Before attempting any cleaning steps, ensure the analyzer is powered off and disconnected from any gas supply.
How to fix corrosion on your Divesoft analyzer-
Immediately disconnect the affected oxygen sensor to prevent further damage.
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Carefully clean visible oxidation using isopropyl alcohol (IPA, 90% concentration or higher). Apply with a cotton swab or lint-free cloth using gentle circular motions; do not flood the board.
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Inspect the internal board and connectors for green corrosion, white powdery deposits, or electrolyte residue.
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Document the extent of the damage with clear photos for service evaluation.
⚠️ Do not continue using the analyzer if corrosion is present inside the device. Doing so may result in inaccurate oxygen readings and could pose a serious safety risk during a dive.
When to contact service
Corrosion damage requires professional inspection and must not be ignored. Depending on the extent of damage, service may include board cleaning, connector treatment, board replacement, or sensor cable replacement. Contact an authorized Divesoft Service Point as soon as possible for a full evaluation. Do not return the device to service until it has been cleared by a qualified Divesoft technician.
Find your nearest authorized Divesoft Service Point on our Service Centers page.