Bosch dishwasher error code

E15

Water detected in the base

Water has collected in the base tray under the dishwasher, which trips a float safety switch that stops the cycle.

Also shown on some Bosch models as: E:15 E3100

Try these free fixes first

Unplug the dishwasher before opening any panel.

  1. Turn off the water supply valve to the dishwasher.
  2. Unplug the dishwasher or switch off its breaker before doing anything else.
  3. Look for obvious causes such as too much or the wrong detergent causing suds, or a cracked hose visible under the sink.
  4. Wipe up any water you can reach around the dishwasher and leave it off for a day so the base can dry out.
  5. Restore power and water and run a short test cycle while watching for leaks.

Still showing E15?

If E15 comes back, call a technician to find the leak, which is usually a worn hose, seal, pump gasket or the leak-protection float switch.

Leak protection float switchCheck that the part matches your exact model number (usually on a sticker inside the door or on the back).Find the part
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Questions people ask

What does E15 mean on a Bosch dishwasher?

E15 on a Bosch dishwasher means: water detected in the base. Water has collected in the base tray under the dishwasher, which trips a float safety switch that stops the cycle.

How do I fix Bosch dishwasher error E15?

Turn off the water supply valve to the dishwasher. Unplug the dishwasher or switch off its breaker before doing anything else. Look for obvious causes such as too much or the wrong detergent causing suds, or a cracked hose visible under the sink. Wipe up any water you can reach around the dishwasher and leave it off for a day so the base can dry out. Restore power and water and run a short test cycle while watching for leaks.

When should I call a repair technician?

If E15 comes back, call a technician to find the leak, which is usually a worn hose, seal, pump gasket or the leak-protection float switch.

Related dishwasher codes

Samsung LCDishwasher: Leak detectedLG E1Dishwasher: Leak or overfill detectedWhirlpool F8E4Dishwasher: Water detected in drip trayGE LEAK DETECTEDDishwasher: Possible leak detectedMaytag F8 E4Dishwasher: Water in drip trayElectrolux i30Dishwasher: Leak protection activated

Source: Bosch official support · Reviewed 2026-10-01