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Dishwasher

Dishwasher noisy? 3 likely causes

Loose items, a failing circulation pump or worn bearings.

Symptom: Rattling, grinding or humming · Typical cost: £80–£180.

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

    Loose crockery or spray arm

    DIY: easy

    Items rattle or hit the arm.

    The fix:Reload and check the arms.

  2. 2

    Debris in the pump

    DIY: moderate

    Glass or bones cause grinding.

    The fix:Clear the pump area.

  3. 3

    Failing circulation pump motor

    Engineer job

    A bearing noise.

    The fix:Replace the pump.

When to call an engineer

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

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Frequently asked questions

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

£80–£180.

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.