Miele dishwasher (G 4000-G 7000 generations): field service manual

Covers: Miele built-in dishwashers sold in the US, older G 1xxx-G 6xxx and the G 5xxx/G 7xxx generations from 2019 on (including AutoDos/PowerDisk units). Codes and parts vary by generation; confirm on the model's tech sheet.

Single sourceBrands: Miele4 components

Miele dishwashers report faults as F-codes. The Waterproof System adds a float switch in the base pan (F70) and supply-side protection. The most common calls are F11 drainage faults, often caused by a mis-seated drain pump cover (newer generation) or a displaced non-return valve (older generation), not a dead pump.

Safety first

Unplug before reaching into the sump; check for broken glass
Live tests on the electronics are caution work

How it works

Fill: the inlet valve fills the tub; a flow meter measures intake. Low supply pressure, a closed stopcock or a blocked inlet screen sets intake faults (F12/F13).

Wash and heat: the circulation pump moves water to the spray arms; the water is heated under control of a heater relay, a temperature sensor and a heater pressure switch that proves water is present before heating (F14 for the pressure switch, F24 for the heater relay).

Drain: the drain pump sits under the filter combination. On G 5xxx/G 7xxx (2019 on) the drain pump has a cover that must sit flush; on G 1xxx-G 6xxx a non-return valve sits in the drain path. If either is out of place, water flows back and F11 appears.

Leak protection: water in the base pan lifts the float switch and the control shows F70 and stops filling.

Components & tests

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Large stainless refrigerator set flush between kitchen cabinets by Alex Qian, Pexels License

Diagnostic guides for this appliance

Component test · Dishwasher

How to test a dishwasher heating element

Many US dishwashers have a hidden or visible loop element under the tub. A good one reads in the tens of ohms. A leak to the tub trips the GFCI even when the resistance looks fine, so always check to ground.

5 steps ~20 mineasy

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How to test a dishwasher circulation (wash) pump motor

The wash motor pushes water to the spray arms. Older units use an AC induction motor; many newer ones use a brushless DC motor driven by the board. Rule out a jam and a filter clog before testing, and use the tech sheet for winding values.

6 steps ~45 minmoderate

Component test · Dishwasher

How to test a float switch (dishwasher overfill and similar)

A float rides up with water and opens or closes a small switch under the tub. It stops overfill or flags a leak. Make sure the float moves freely before blaming the switch.

6 steps ~20 mineasy

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