ANY MAKEDISHWASHER

Any make · Dishwasher

E4 error code on a dishwasher

Water supply or door latch

Depending on the brand, E4 means low water supply or a door latch problem, so it's worth checking both.

Also shown as E04

Worth repairing?

Worth fixing

The door latch and the inlet valve are both inexpensive parts.

Can you do it yourself?

Very easy

About 15 minutes

Before you start

  • Turn the tap off before you undo any hose or filter.

What to check, in order

  1. Check the water

    The supply valve should be fully open, and your water pressure normal.

  2. Check the door latch

    Look for damage or misalignment. If the door isn't registering as shut, the cycle won't start.

When to call an engineer

If both check out and the code stays.

Parts people end up buying

Only if the checks above point to a part. Match it to your model number first: it's on a label on the edge of the door or the side of the tub.

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About this code

Unbranded and less common appliances don't publish one shared code list, so this page gives the most common meaning across makers. Your manual is the final word, and the model number that finds it is on a label on the edge of the door or the side of the tub.

Last reviewed September 2026.

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