E16
Error code
E16 Error: If your Bosch dishwasher is displaying the E16 error code on
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.
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Diagnostic Steps
- 1
Step 1
Turn off water supply to dishwasher
- 2
Step 2
Test the inlet valve — it should close completely when power is off
- 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.