Bosch Dishwasher E15 Error: 2-Min Reset & Exact Part Numbers (#12005744)
Quick Answer: The E15 error code on a Bosch dishwasher means the AquaStop leak-protection system has detected water in the bottom base pan. When water collects in the drip tray, a polystyrene float rises and triggers a safety switch that cuts off the water supply and runs the drain pump continuously.
⚠️ Reddit Myth Warning: E15 is NOT caused by a kinked water hose or low water flow (that is E18/E24). E15 strictly means physical water or detergent suds have leaked into the bottom floor pan underneath the dishwasher tub.
#1 Most Common Fix: Bosch OEM Sump Gasket Silicone Repair Ring
Official OEM Part Number: #12005744
⏱️ Install Time: 10 Minutes (Top-down install, 4 Torx T20 screws) | 💰 Avg Cost: $9.99 – $14.50 (Saves $300 service call)
Step 1: Free 2-Minute Reset & Test (Try This First)
Before ordering replacement parts, perform this quick reset sequence to rule out a temporary sensor trip:
- Turn off the water supply valve under your sink and UNPLUG the dishwasher from the wall (pressing Cancel is not enough).
- Place an old towel on the floor in front of the dishwasher.
- Pull the dishwasher out slightly and tilt it 45 degrees forward for 60 seconds to drain trapped water from the base pan.
- Let it dry for 2 hours, plug it back in, and run a Rinse-Only cycle. If E15 returns within 1–3 washes, your sump gasket (#12005744) is leaking and must be replaced.
Step 2: 60-Second Symptom & Part Number Lookup Table
Match your exact Bosch E15 symptom below to get the factory replacement part number:
| What You Are Seeing (Symptom) | Required OEM Part & Number | Difficulty & Cost | Direct Part Link |
|---|---|---|---|
| Water keeps coming back into the base pan after 1–2 cycles (80% of all E15 cases) Cause: Shrunken Sump To Tub Gasket |
Sump Seal Repair Kit (Silicone Ring)#12005744 |
Easy DIY (10 min from inside tub) Est: $11.99 |
Check Price on Amazon → |
| E15 appears overnight while the dishwasher is turned OFF Cause: Slow drip from failing Water Inlet Valve |
Bosch OEM Water Inlet Valve#00628334 |
Easy DIY (15 min at kickplate) Est: $34.50 |
Check Price on Amazon → |
| Water tracks visible at the bottom corners of the front door Cause: Flattened or torn lower door seal |
3-Sided Door Gasket Seal#00657905 |
Very Easy (Press-fit, no tools) Est: $24.99 |
Check Price on Amazon → |
| E15 displays with 'Watertap' icon and no internal leak is visible Cause: Pinhole leak inside the double-walled supply hose jacket |
Bosch AquaStop Supply Hose Assembly#00668113 |
Easy DIY (20 min with wrench) Est: $42.00 |
Check Price on Amazon → |
Frequently Asked Questions (Bosch E15)
What part fixes the Bosch E15 error code permanently?
In over 80% of recurring Bosch E15 cases, the leak comes from the gap between the plastic sump housing and the stainless steel tub. Bosch released an official silicone repair ring (Part #12005744) that installs from inside the dishwasher in 10 minutes without removing the pump.
Why does my Bosch dishwasher pump keep running with error E15?
Continuous drain pump operation is a built-in AquaStop safety feature to prevent kitchen flooding. As long as water lifts the styrofoam float in the base pan, the pump will run non-stop, even with the door open.