Why Are My Dishwasher Tablets Not Dissolving?

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Dispenser Door Not Opening

The dispenser releases the tablet mid-cycle. If the door is blocked by a large item in the lower basket, the tablet sits in the closed dispenser and is never released. Rearrange loading so nothing blocks the dispenser door.

Faulty Dispenser Mechanism

The spring-loaded dispenser door can jam or the wax motor that opens it can fail. Replacement cost: £60–£100.

Water Not Heating

Tablets dissolve much faster in hot water. Cold water leaves partially dissolved tablets. See: heating element fault above.

Low Water Pressure

Tablets also need water spray to start dissolving. A weak pump or blocked spray arm can leave tablets intact.

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