Bosch E15 and E24 Error Codes Explained

E15: Aquastop Leak Protection

Bosch dishwashers have a safety pan in the base with a foam float. If water collects there, the float rises, trips a switch, and the machine shows E15 and stops filling to protect your floor. First, turn off the water supply. If you can access it, tilt the dishwasher back slightly so the pan drains, or carefully soak up the water. When the pan is dry the code often clears. If E15 comes back, there is a real leak, from a hose, seal, or the tub, that needs to be located and repaired rather than reset.

E24: Drainage Fault

E24 means water is not leaving the tub in time. Work through the drain path in order: clean the filter at the base, remove and inspect the drain hose for kinks or clogs, check the sink air gap and the garbage-disposal knockout if the drain ties into the sink, and clear any debris caught in the drain pump. In most homes one of these is the culprit. If the path is clear and E24 remains, the drain pump itself may have failed and needs replacement.

Why These Come Up in Mountain Homes

Hard water and infrequent use in second homes both contribute. Scale and trapped food narrow the drain path, and a machine that sits unused can develop a stiff or stuck pump. Regular filter cleaning is the best prevention, as covered in our Bosch maintenance guide.

Codes at a Glance

Frequently Asked Questions

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