Editorial & technical review
- Written by ApplianceWorth Editorial Team
- Technically reviewed by Victor — appliance technician
- Last reviewed 2026-07-12
- Applies to Bosch dishwashers
- Confidence medium
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
What this code means
The dishwasher has detected water in the base area and may run the drain pump repeatedly as a protective response.
Applicability
Applies to Bosch dishwashers displaying E15. Confirm your model's E-Nr and FD number, since base-pan leak-sensing hardware has changed across Bosch generations.
Symptoms
- The dishwasher stops mid-cycle and will not restart
- Water may be visible pooled at the base of the unit or dampness on the floor immediately in front of it
Most likely causes
- A hose, pump, seal or water inlet connection is leaking
- Excess foam has pushed water into the base
- The appliance was tilted or recently moved and water reached the safety float
- A damaged float switch, connector or harness is reporting a false leak
Diagnostic logic
If water is visibly pooling at the base, an active leak (hose, pump seal or tub) is likely and the unit should stay off until inspected. If no visible water is present, excess foam from incorrect detergent, or a false trip from humidity, becomes more likely — this is a safety-designed error, not necessarily a hardware failure.
Safe checks for the owner
- Turn off the dishwasher and close the water supply if water is visible around the appliance.
- Do not keep resetting the code while the drain pump runs continuously.
- Check for excess suds, water under the unit and a recently disturbed supply or drain hose.
Estimated U.S. repair cost
$180–$600, depending on model, access, parts availability and local labor.