PartsCompat UK

E16

Error code

medium severity Bosch

E16: Drainage Fault

If your Bosch dishwasher is displaying the E16 error code on its control panel, you've likely noticed water pooling inside the machine when it's switched off. This is a fairly common fault that indicates your dishwasher's inlet valve isn't sealing properly, allowing water to trickle into the appliance even when the cycle has finished.

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Diagnostic Steps

  1. 1

    Step 1

    Turn off water supply to dishwasher

  2. 2

    Step 2

    Test the inlet valve — it should close completely when power is off

  3. 3

    Step 3

    Replace the inlet valve if it is leaking

⚠️ Always disconnect your appliance from mains power before starting any repair. If in doubt, consult a qualified engineer.

Parts to Check in order of probability

1
valve medium

Water Inlet Valve

OEM: 00263086

Water Inlet Valve for Bosch & Siemens Dishwashers If your dishwasher isn't filling with water properly or is leaking around the inlet area, a faulty water inlet valve is likely the culprit. Over time, these valves wear out and lose their ability to control water flow effectively, leaving you with poor wash results or water damage. This genuine OEM part, reference 00263086, is designed specifically for Bosch and Siemens dishwashers and restores proper water intake function. Replacing it is straightforward enough for a confident DIYer, with an installation difficulty rating of just 2 out of 10. When fitting the new valve, remember to turn off both the water supply and electrical power to your appliance first. This simple precaution makes the job safer and prevents accidental flooding. The valve itself typically sits behind the kick plate at the front of your dishwasher, so access is relatively easy. Before ordering, take a moment to verify your dishwasher's E-Nr model number, which you'll find on the inside of the door frame. This ensures you're getting the correct part for your specific machine and avoids any compatibility issues.

Frequently Asked Questions

What does the E16 error mean on a Bosch dishwasher?↓
If your Bosch dishwasher is displaying the E16 error code on its control panel, you've likely noticed water pooling inside the machine when it's switched off. This is a fairly common fault that indicates your dishwasher's inlet valve isn't sealing properly, allowing water to trickle into the appliance even when the cycle has finished. The good news is that this particular error is often straightforward to diagnose and repair, with many UK homeowners successfully fixing it themselves without calling out an engineer. The E16 code almost always points to a faulty water inlet valve, which is responsible for controlling the flow of water into your machine. When this valve deteriorates or becomes stuck, it fails to shut off completely, resulting in that unwanted water accumulation. Before you panic about repair costs, it's worth knowing that inlet valves are relatively affordable replacement parts and are typically accessible without requiring specialist tools or extensive appliance knowledge. This guide will walk you through understanding the problem, checking the suspected components, and exploring your repair options so you can get your dishwasher working properly again.
Can I fix the E16 error myself?↓
Many E16 faults can be resolved by a competent DIYer. Always disconnect from mains power first. If unsure, consult a qualified engineer.

Quick Summary

Code
E16
Brand
Bosch
Parts to check
1