Miele dishwasher won't start is a known issue affecting G7156. Our technicians specialize in Miele-specific diagnostics and repair.
Miele dishwasher won't start is typically caused by faulty door latch or failed control board. Miele-specific factor: waterproof system base-tray float lockout — a past leak tripped the wps float, cutting the inlet valve and refusing to start until the base is dried and reset. Repair costs $100-$350 with free diagnostic and 90-day warranty.
Waterproof System base-tray float lockout — a past leak tripped the WPS float, cutting the inlet valve and refusing to start until the base is dried and reset
WPS base-pan residual water from a minor hose weep keeping the float raised and the machine locked
Door-closure microswitch fault leaving the Miele reading the door as open so the cycle never starts
Inlet solenoid or flow-meter fault the control interprets as a supply fault, holding the start
Electronic control board fault after a power event preventing program start
Other Miele models may also be affected. Book a free diagnostic for confirmation.
Seeing one of these codes? It likely indicates won't start.
Bay Area Miele owners who see a dead, unresponsive dishwasher after a small under-counter leak are usually looking at a tripped Waterproof System, not a failed machine — the WPS float holds the inlet closed until the water is cleared and reset. The technician dries the base tray and finds the original weep.
Tilt the machine slightly and check the WPS base tray for standing water — a raised float there explains a Miele that has power but will not start
Trace the original leak (door seal, hose, or inlet) before drying and resetting, or the float trips again immediately
If the base is dry, verify the door microswitch closes and the inlet solenoid energizes before condemning the electronic control
The first check on a no-start Miele is the Waterproof System base tray: drying it and fixing the source leak clears most lockouts at the low-cost end. An inlet solenoid or flow-meter fault is a moderate repair; an electronic control board failure is the high-cost outcome. The WPS is a Miele-specific anti-flood interlock — treating the no-start as a simple door or power fault misses it.
| Diagnostic | Free |
| Typical repair | $100–$350 |
| Repair time | 1-2 hours |
| Warranty | 90 days parts + labor |
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