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Rust spots on cutlery

Rust spots on cutlery — Rust marks on silverware

Bosch · Dishwashers

What does Rust spots on cutlery mean?

Rust spots are appearing on your cutlery, particularly on knife blades.

Common Causes

  • Cutlery is not sufficiently rust-resistant.
  • Rusting items are washed together with cutlery.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Use only rust-resistant tableware.

  2. 2

    Avoid washing items that may rust (like steel knives) together with your silverware.

  3. 3

    Ensure dishwasher detergents do not contain ingredients that could cause corrosion.

Browse all codes in this manual (8)
Verified technical data. Last updated: April 2026

Related Faults

Detergent residueDetergent residue — Detergent left in dispenserE:32-00Error E:32-00 or water supply light on — Water supply issueE:61-02Error E:61-02 — Wastewater pump is blocked
Source: Bosch Dishwashers
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