Dishwasher won't start any programmes (after interrupted drain step)

If the dishwasher powers up but will not start any programme after being left with water in it, the most likely causes are that it still “thinks” there is water present, the drain system is blocked, or a safety switch has operated. As there’s no clear error code, it’s a matter of narrowing it down.

1. Reset it fully Turn it off at the mains for at least 10–15 minutes, then power back up and try a cancel/reset again. Sometimes the control can get stuck after an interrupted cycle.

2. Check the door is definitely latching If the door switch is not proving closed, it can appear normal but refuse to start. Make sure the door closes firmly with no resistance from baskets or crockery.

3. Check for water in the base tray If water has leaked into the bottom tray, an anti-flood float switch may be stopping all functions, including starting and draining. Isolate from the mains before inspecting internal parts. If safe to do so, look for signs of water underneath or in the base.

4. Check the drain path Inspect the pump cover area, sump, drain hose and sink spigot connection for blockage or kinks. A blocked non-return valve or pump can leave the machine thinking it has not drained.

5. Listen when starting a programme Does it make any sound at all—pump noise, clicking, humming? If it hums but does not drain, the drain pump may be jammed or faulty.

6. Water level / pressure switch issue If all visible blockages are clear, a pressure chamber, pressure switch or related hose may be blocked with sludge, preventing it from recognising that the tub is empty.

If you need to remove panels or test electrical parts, keep it isolated from the mains and use a qualified engineer for mains-related work. If you want, I can help you work through what to check next based on exactly what it does when you press Start.

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