Codes / Bosch / Dishwasher

Bosch E24: The dishwasher is not draining properly; the drain filter is blocked.

Bosch's page says E24 indicates the dishwasher isn't draining properly because the drain filter is blocked. It lists pooled water after a cycle, unexpected pauses, and gurgling or humming as symptoms, and names a blocked drain hose, a filter that needs cleaning, and a garbage-disposal knockout plug that was never removed as causes.

Source: Bosch Dishwasher Error Code E24; read 2026-10-16. 5 owner checks listed.

Fault isolation, in Bosch's order

• Owner check from Bosch's page
• Observation Bosch asks you to make
• Request service: technician only beyond here
• Code should clear

The checks, with Bosch's detail

1. 1Check the hose for kinks or damage

   Bosch lists this as the first check.

2. 2Check that the siphon connection is sealed

   Where the drain hose meets the sink drain or disposal.

3. 3Check whether the pump cover is loose

   It sits under the filter; Bosch says the owner's manual shows where.

4. 4If connected to a garbage disposal, confirm the knockout plug was removed

   A new disposal ships with the dishwasher inlet plugged. If the installer left it in, the dishwasher cannot drain.

5. 5Reset the dishwasher and clear the code

   After fixing the cause, reset as the owner's manual describes.

6. Does E24 still appear?

Same code, different meaning on other brands

None of the other brands in the verified set (LG, Samsung, Whirlpool) uses E24 on their official pages read on 2026-10-16. If your display shows E24 on a different brand, do not apply these checks; use the lookup or that brand's own support page.

Same symptom on other brands

• OELG washer: The washer cannot drain the water from the wash cycle.
• F9 E1Whirlpool washer: Long drain time: the washer cannot drain correctly.

Other Bosch codes here

• E15Bosch dishwasher: Water was detected in the base; the leak protection system has activated.

Provenance