Bosch Dishwasher Error E15: Leak Detected

The Logic Verdict

My Take: I watched the tech pop off the kick plate, immediately find water floating the safety puck, and then trace a slow drip to the inlet water valve as soon as he pressurized the supply line. Start by sopping the base dry and running a short fill with the toe-kick removed — you’ll quickly see whether that plastic valve body or a nearby hose clamp is seeping before you order parts.

What It Means

E15 means the leak tray under the tub filled up enough to lift the styrofoam float. That float hits a microswitch, Bosch locks out the cycle, and the drain pump runs until you clear the water. The code clears only when the base is bone-dry and the original leak is fixed.

Common Causes

1. Inlet water valve (part 00628334/10023852) leaking at the molded seal — exactly what the video shows.
2. Loose clamp or cracked hose where the supply or drain line enters the base pan.
3. Residual water under the float after a prior spill (you must dry it fully or the float keeps triggering).

Step-by-Step Fix

1. Kill power and water: Trip the breaker, shut the dishwasher supply valve, then back out the two screws holding the toe-kick so you can see the base.
2. Mop the tray dry: Slide towels in under the tub, lift the styrofoam float, and remove every puddle so you can spot a fresh drip.
3. Recreate the leak: Turn power/water back on briefly, hold the Start button for ~3 seconds to force a drain/fill reset, and watch every hose junction while it takes on water. The video shows a telltale droplet forming on the inlet valve body.
4. Remove the bad valve: Shut power/water again, disconnect the supply line, undo the mounting screw, slide the valve out of its bracket, and transfer the wire harness.
5. Install the new valve: Swap in part 00628334, make sure the O-ring sits flat, snug the compression fitting, and push the outlet hose back on with its clamp.
6. Test before closing up: Restore power/water, run the 9-minute rinse he demonstrates, and confirm the base stays dry before reinstalling the kick plate.

Parts & Tools

• Bosch 00628334 / 10023852 Water Inlet Valve

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