E15, Water in the Tub, but No Familiar Flood Tray

• The dishwasher arrived with E15 and water still inside.
• After a cycle was started, the machine drained and the drain pump operated.
• The circulation and drain pumps were reported to work.
• The code stopped appearing during the discussion.
• The technician found no conventional lower tray and flood switch used on other Bosch platforms.

A similar symptom with E15 can have a different cause or level-sensing design on another model. This case matters because the exact SHE3AR72UC/25 construction changed the test path.

The discussion identified a float switch mounted in an upper enclosure rather than a flood switch in a lower catch pan. Those devices should not be treated as interchangeable names. The control still needs an input before deciding that the water condition is unsafe.

Two unconfirmed explanations remained: the inlet valve may have stayed open long enough to overfill the tub, or the float input may have stuck or reported the wrong state. A control fault was also considered, but no test result established it.

1. Photograph the code before clearing or draining the machine.
2. Record the water level and whether filling continues longer than expected.
3. Note whether E15 appears during fill, wash or while the dishwasher is idle.
4. Check from outside for visible supply, door and drain leakage.
5. Give the technician the full model suffix so the correct float circuit is tested.

The thread did not confirm a lasting repair. Its value is the platform exception and the observation that an intermittent code does not erase the earlier overfill or float signal.