How a Miele dishwasher reports a fault
A Miele G dishwasher runs its fill, wash, heat and drain through sensors, a flow meter and a control board, so when a cycle stalls it shows an F-code rather than failing silently. The dishwasher carries the richest code set of any Miele appliance, which makes it the easiest to diagnose before a visit, because each F-number points at a specific part — the drain pump, an inlet valve, the heater, the door or the Waterproof System float. The codes apply across the G 7000 flagship and G 5000 entry models.
The codes you will see
F11 is a drainage fault — most often a blocked filter, drain hose or pump rather than the pump itself. F12 and F13 are water-intake faults at the start and end of a step, and F15 a hot-water inlet problem (water under about 100°F, or hot and cold reversed). F18/F19 are flow-meter faults, F24/F25/F26 heating and boiling-protection, and F32/F33/F36 the door auto-close, lock and switch. F51/F52 are pressure-switch faults, and F67/F69 a circulation-pump speed or blockage problem.
F70 and the Waterproof System
The most important leak signal is F70: the Waterproof System float has detected water in the base, so the dishwasher stops and runs its drain pump to protect your floor. The source is usually a hose fitting, a door seal or over-foaming rather than a catastrophic failure. The milder codes — F86 salt-lid contact, F87 water softener and F88 turbidity sensor — are often a quick check rather than a service call.
What to check, and when to call
For F11, clean the base filter and check the drain hose and air gap; for F12–F15, confirm the supply is open and the inlet screens are clear. A persistent F11 after cleaning, an F32/F33 door-lock fault that strands the cycle, an F24/F25 heating fault or an F70 leak you cannot trace needs an experienced, independent technician with genuine parts. See the full list on the dishwasher error codes page or the wider error codes library, then book dishwasher repair. Confirm your model on the manufacturer’s site at mieleusa.com.