Bosch dishwashers show E-codes. E24 is the most commonly reported code (drain path), with E25 (blocked pump) and E15 (leak detection) also frequent. Bosch documentation and owner manuals confirm these meanings.
| Code | Meaning | Severity | First action |
|---|---|---|---|
| E24 | Drain fault | Usually fixable at home | The dishwasher cannot drain — water remains in the sump at the end of the cycle. |
| E25 | Blocked drain pump | Usually fixable at home | Something is blocking the drain pump impeller — glass, seeds or food debris. |
| E15 | Leak detection | Engineer needed | Water has been detected in the base pan — the anti-flood switch has tripped and the machine has pumped out and stopped. |
| E16 | Water inlet fault | Usually fixable at home | Too much water has entered — usually the inlet valve is letting water through continuously. |
| E14 | Flow/level fault | Engineer needed | The reed switch or flow sensor is not reporting water level correctly. |
Safety first
Unplug before any check. Never open panels beyond the filter flap. Anything involving internal wiring, the heater or gas must go to a professional — see each code page for its "call a professional when" line.