Dishwasher

Dishwasher won't start? 3 likely causes

Check the door latch, power and child lock first.

Symptom: No lights or cycle won't begin · Typical cost: £70–£190.

Always switch off and unplug the appliance before inspecting it. Never work on gas appliances or fixed electrical wiring yourself — call a Gas Safe registered engineer or a qualified electrician.

Likely causes, most common first

  1. 1

    Door not latching

    DIY: moderate

    The door switch isn’t engaging.

    The fix:Close the door firmly; replace latch.

  2. 2

    Child lock or delay start

    DIY: easy

    Controls are locked.

    The fix:Disable the child lock.

  3. 3

    Control board fault

    Engineer job

    Board has failed.

    The fix:Replace or repair the board.

When to call an engineer

  • You are not comfortable working on the appliance, or the fix involves electrics or gas.

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Error codes linked to this fault

Dishwasher how-to guides

Other dishwasher faults

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Frequently asked questions

How much does it cost to fix a dishwasher problem like this?

£70–£190.

Is it safe to keep using it?

If you can see leaks, smell burning, or the appliance is tripping the electrics, stop using it and unplug it. For minor faults without those signs it is usually safe to leave it off until you can diagnose it. Always switch off and unplug the appliance before inspecting it. Never work on gas appliances or fixed electrical wiring yourself — call a Gas Safe registered engineer or a qualified electrician.