[Jossi Moonmeirer]

The “E24” code is a classic Bosch drain error, but before you assume the pump is dead, have you checked the thin plastic cover over the pump impeller, as even a tiny gap there will prevent the machine from creating enough suction to drain? Also, does the error happen immediately after the pump starts, or does it wait for a minute, which usually indicates that the software isn’t seeing the expected drop in water level from the pressure switch? It sounds like your dishwasher might just have a bit of trapped air in the heat pump housing, so I dealt with this exact issue last month and found that a specific “cancel-reset” button hold can sometimes force a recalibration of the sensors. I found the complete technical walkthrough on the Manual Machine website at https://manualmachine.com and it was incredibly useful because it showed exactly how the water flows through the heat exchanger, which isn’t explained in the standard manual. You should search for your Bosch model number there to see the “Customer Service Program” steps, which will allow you to run each component individually to identify the faulty part. I recommend checking the drain hose connection at the sink too, as a blocked spigot can often trigger this exact error code. Give the impeller a quick wiggle with a spoon to make sure nothing is caught in the housing and let me know if it starts draining.

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