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Stained tub interior

Stained tub interior — Detergent with colorant

Teka · Dishwashers

What does Stained tub interior mean?

If the interior of the Dishwasher tub becomes stained, it is likely due to using a detergent that contains colorants which can transfer and build up over time.

Common Causes

  • Detergent with colorant was used.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Make sure that the detergent you are using is one without colorant.

  2. 2

    Switch to a clear or colorless Dishwasher detergent.

  3. 3

    To clean the existing stains, use a damp sponge with a small amount of regular Dishwasher detergent.

  4. 4

    For persistent stains, a Dishwasher cleaner may be used, ensuring it is compatible with your appliance.

Browse all codes in this manual (39)
Verified technical data. Last updated: April 2026

Related Faults

10 beeps every 30s10 beeps every thirty seconds — Dishwasher door opened during cycleBlack or gray marks on dishesBlack or gray marks on dishes — Aluminum rubbingBuzzer 8 secondsBuzzer sounds for 8 seconds — Wash cycle finished
Source: Teka Dishwashers
Open Manual (Page 27)Search more codes in this manual