Dishwasher
Standing water is most often a clogged filter or drain hose, or a failed pump.
Symptom: Standing water in the bottom · Typical cost: £80–£160.
Food debris builds up in the filter.
The fix:Remove the filter at the base and rinse it.
The waste connection under the sink is blocked or kinked.
The fix:Check and clear the hose, air gap or trap.
The pump hums or makes no noise.
The fix:Replace the drain pump.
£80–£160.
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.