A Bosch dishwasher E15 error means the appliance’s leak-protection
system has detected water in the dishwasher base. Bosch’s official US
guidance is direct: turn off the water supply and contact Bosch customer
support for service.
This is not a normal drain-clog message. Do not tilt the dishwasher,
remove its base panel, dry the internal pan, defeat the float, or run
another cycle to see whether the error returns.
What E15 Means
Bosch describes E15 as a water-protection or leak-detection
condition. A sensor in the base has reacted to water where it should not
be. The protection system may keep the drain pump running or prevent
normal operation to reduce the chance of additional leakage.
The code identifies the protective response, not the exact source of
the water. An internal hose, seal, valve, pump area, excess suds, or
another issue may require inspection. The specific cause cannot be
confirmed from the display alone.
Immediate Safe Actions
1. Stop the Dishwasher
Do not start another wash or reset it repeatedly. If controls
respond, turn the dishwasher off. If water is actively escaping, keep
people away from wet flooring near electrical connections.
2. Shut Off the Dishwasher
Water Supply
Close the dishwasher’s dedicated shutoff valve, commonly located
under the kitchen sink. If the valve is stuck, corroded, leaking, or you
cannot identify it confidently, do not force it. Contact a plumber or
building maintenance.
3. Disconnect Power Only If
It Is Safe
Switch off the dishwasher’s circuit breaker if you can identify it
safely. Do not touch a plug, outlet, or electrical panel while standing
in water or with wet hands.
4. Protect the Surrounding
Area
Use towels only for water that has already reached accessible
flooring. Keep children and pets away. Check the cabinet and floor
around the dishwasher for visible moisture, but do not pull out a
built-in dishwasher or remove the toe kick.
5. Contact Bosch
Support or Qualified Service
Record the full E15 code and model number. Bosch US directs owners to
customer support for this error because the leak source and protective
components require proper diagnosis.
Why You Should Not Tilt
the Dishwasher
Some unofficial guides recommend tipping a Bosch dishwasher to empty
the base. That may temporarily move water away from the sensor without
repairing the leak. It can also move water toward wiring or controls,
damage cabinets or flooring, strain hoses, and create a tip or lifting
injury.
Clearing the display is not the same as correcting the source. Follow
Bosch’s official response instead.
Why E15 Is Different
From “Not Draining”
A normal drainage complaint generally involves water remaining inside
the wash tub. E15 refers to leak protection detecting water in the base
area below the tub. If you only have standing water inside and no E15
code, use the dishwasher
not draining guide.
Do not remove filters or reach into the sump while E15 is active
unless Bosch support explicitly directs a model-specific user step after
power and water are safely isolated.
Information to Give the
Technician
Prepare:
- The complete model and serial number.
- The exact displayed code.
- Whether the drain pump continues running.
- When the code appeared in the cycle.
- Any visible water under the sink or on the floor.
- The detergent type and whether unusual suds were present.
Do not speculate about a failed part. These observations are more
useful than a guessed diagnosis.
When the Situation Is Urgent
Contact emergency maintenance, a plumber, or an electrician promptly
if water continues flowing after the appliance is off, the shutoff valve
leaks, water reaches an outlet or wiring, a breaker trips, or you smell
burning. For a substantial active leak, close the home’s main water
valve if you know how and can reach it safely.
Frequently Asked Questions
Bosch reference: Dishwasher
Error Code E15.
What does E15 mean on
a Bosch dishwasher?
It means the leak-protection system detected water in the dishwasher
base.
Can I reset Bosch error E15?
Do not focus on clearing the display. Bosch US instructs owners to
shut off the water supply and contact support because the underlying
leak condition needs diagnosis.
Should I tilt the
dishwasher backward?
No. Tilting may move water away from the sensor without fixing the
leak and can create electrical, property, and lifting risks.
Can I
keep using the dishwasher if the code disappears?
No. A temporarily cleared code does not prove the leak is repaired.
Leave the water off and arrange service.
Is E15 caused by a clogged
filter?
The code itself only confirms water in the base. It does not identify
the source, and a technician must determine the actual cause.
Why does the pump keep
running?
The dishwasher may be using its protective drainage response after
the base sensor detects water. Do not defeat or bypass it.