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Detergent residue in appliance

Detergent residue in the appliance - Dispenser lid blocked or old detergent

Bosch · Dishwashers Series 6

What does Detergent residue in appliance mean?

Undissolved detergent remains visible inside the appliance, not just in the dispenser, after a wash cycle.

Common Causes

  • Lid of the detergent dispenser is blocked by items of tableware parts and will not open.
  • Items of tableware are blocking the dispenser lid.
  • The lid of the detergent dispenser is blocked by the tab and will not open.
  • Tabs are used in quick or short programmes, and dissolving time is not attained.
  • Washing effect and dissolving performance are reduced after prolonged storage or detergent is very lumpy.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Arrange tableware in the top basket so the tab collecting tray and dispenser lid are not obstructed (Page 33).

  2. 2

    Do not place tableware or fragrance dispensers in the tablet collecting tray.

  3. 3

    Position the detergent tab crosswise, not vertically, in the dispenser.

  4. 4

    For quick or short programmes, use powder detergent or select a more intensive programme to allow tabs to dissolve fully.

  5. 5

    Change to a fresh detergent if it has been stored for too long or is lumpy (Page 29).

Browse all codes in this manual (38)
Verified technical data. Last updated: April 2026

Related Faults

All LEDs lit up or flashingAll LEDs lit up or flashing - Electronics fault detectedAppliance cannot be switched on/operatedAppliance cannot be switched on or operated - Software update, power failure, or door issueAppliance stops/cuts out during programmeAppliance stops during the programme or cuts out - Door open, power/water interruption, or obstruction
Source: Bosch Dishwashers Series 6
Open Manual (Page 51)Search more codes in this manual