Bosch Dishwashers E15 Error Code (Water in Base): How to Fix It Yourself
The E15 code means the flood protection system detected water in the base pan underneath the dishwasher. Bosch dishwashers have a built-in safety feature — a small styrofoam float triggers the sensor when water collects in the base. The fix usually involves draining the base pan and finding what caused the leak.
⚠️ Safety First
- Unplug the dishwasher or turn off its breaker before tilting or working underneath.
- Water may spill when you tilt the unit — have towels ready.
- Do not tilt the dishwasher more than 45 degrees.
Parts You May Need
Step-by-Step Repair
- 1
Turn off power and water
Unplug the dishwasher or switch off its breaker at the electrical panel. Also turn off the water supply valve under the kitchen sink. This is important for your safety and to stop any additional water from entering.
- 2
Remove the dishwasher kickplate
The kickplate is the narrow panel at the very bottom front of the dishwasher. It usually has one or two screws, or it may snap off. Remove it so you can see underneath. Look for standing water in the base pan.
- 3
Soak up the water in the base
Use towels or a sponge to absorb all the water from the base pan. You can also carefully tilt the dishwasher forward about 30-45 degrees to let the water drain out into towels placed on the floor. This is the key step — the sensor will not reset until the water is gone.
- 4
Look for the source of the leak
While the kickplate is off, shine a flashlight and look for dripping connections, cracked hoses, or loose clamps. Common leak sources include the door gasket, the water inlet connection, and the drain hose fittings. Tighten anything that looks loose.
- 5
Reassemble and test
Let the base dry completely, then reattach the kickplate. Restore power and water. Run a short cycle and watch for the E15 code. If it does not come back, you fixed it. If it returns quickly, there may be an active leak that needs closer inspection.
If That Didn't Work
- Cracked or loose door gasket
- Leaking spray arm seal
- Faulty flood switch sensor giving false readings
- Cracked sump or pump housing
When to Call a Professional
If you cannot find the leak source or the E15 code keeps returning, there may be an internal leak in the pump housing or spray arm assembly. A Bosch-certified technician can diagnose and fix it for $150–$300 depending on the part needed.
Related Repairs
Disclaimer: This guide is for informational and educational purposes only and does not constitute professional repair advice. All repairs are performed at your own risk. RepairItFree.com is not liable for any personal injury, property damage, device damage, voided warranties, or other losses resulting from the use of this information.
If you are unsure about any step — especially anything involving electricity, gas, water, or refrigerant — stop and consult a qualified professional. Your safety is more important than saving money.
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