Miele g6820 dishwasher drainage error — intermittent failure after transport · wasserabfuhr

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   Photograph or transcribe the complete display before pressing buttons, including whether it literally says Wasserabfuhr, Wasserablauf, or another message; record the G 6820 model variant, serial information, program stage, and whether water remains in the wash cabinet.

   Expected result: The exact drainage wording and model identity are confirmed, or the display is translated, abbreviated, or otherwise uncertain.

   Next step: Use the exact Miele manual for the model and market. If the wording cannot be matched, give Miele the photograph and do not borrow a code interpretation from another G-series dishwasher.

   Why this matters

   Why: Miele's G 6820 manual uses Wasserablauf for a drainage fault and says model and serial information are needed for service. A different literal word may be a regional or model-specific label rather than the same documented branch.

2. Check 2

   Because the failure began after transport, without pulling out or tilting a built-in dishwasher, inspect only the accessible drain-hose route and connection for a kink, sharp high loop, compression, tension, an overly inserted connection stub, or a loose connection; also note whether the appliance appears level.

   Expected result: The drain hose is visibly kinked, under pressure or tension, routed unusually after the move, connected at an abnormal depth, or the appliance is no longer level; alternatively, the accessible route looks normal.

   Next step: Correct only a plainly accessible routing issue that can be changed without moving the appliance or opening plumbing. If the built-in route cannot be inspected safely, stop and have Miele service or an installer check it.

   Why this matters

   Why: Miele specifies kink-free, pressure- and tension-free drain-hose routing, a drain connection that is tight, and level installation. A post-transport change makes an installation restriction or backflow path more plausible than a random control failure, while a normal accessible route does not rule out an internal blockage.

3. Check 3

   If water remains and the exact manual permits user cleaning, switch the dishwasher off, disconnect it from power, remove only the interior filter assembly, and inspect the documented drain-pump-cover and non-return-valve area for a visible foreign object; scoop standing water first and keep hands away from sharp debris.

   Expected result: The filter, pump-cover path, or non-return valve contains a visible obstruction, or the accessible path is clean.

   Next step: Remove only the visible obstruction following the exact manual, reinstall every component correctly, and stop if the area is damaged, hot, unsafe, or different from the manual. Do not probe or disassemble the pump.

   Why this matters

   Why: Miele lists the filter, drain pump, and non-return valve as user-accessible drainage checks for the G 6820. A visible obstruction can explain an intermittent drainage fault; a clean path makes an internal pump, valve, hose, or control issue more likely but does not identify which part failed.

4. Check 4

   After the external route and documented interior checks are complete, do not repeatedly restart the dishwasher. Only if there is no leak, the appliance is safely reassembled, and the exact manual permits a test, run one short empty or approved drain-related program while observing from a dry position.

   Expected result: The program drains normally once, or the drainage message returns, water remains, the pump sounds abnormal, or the fault is intermittent again.

   Next step: Stop testing after one documented result and arrange Miele service if the message returns, water remains, or any leak or abnormal sound appears.

   Why this matters

   Why: One successful drain after a corrected route or visible blockage supports that condition as a contributor, but it does not prove the appliance is repaired. A returning or intermittent fault after a clean path points to a persistent mechanical, hose, valve, or control diagnosis.

5. Check 5

   Prepare the service record with the exact display wording, G 6820 variant and serial, transport date, whether the appliance was tilted or disconnected, hose-routing observations, remaining-water level, filter/pump-cover result, and the result of any single permitted test.

   Expected result: The problem can be reproduced after transport, or it occurs only intermittently with no confirmed trigger.

   Next step: Provide the complete record to Miele service or a qualified installer. Do not order a pump or valve from the drainage wording alone.

   Why this matters

   Why: A transport history and timing can direct service toward installation, drain routing, backflow, or a disturbed connection before parts are selected. Miele's manual says the model designation and serial number are required for a service case.