The most common causes include an empty or incorrectly fitted water tank, an air lock, limescale restricting the water circuit or a blocked water filter. In many cases, the problem can be resolved with routine maintenance before a repair is needed.

Yes. Air trapped inside the hydraulic system can prevent water from circulating properly, particularly after changing the water filter, descaling or allowing the water tank to run empty. Running the hot water function often helps remove trapped air.

If limescale is restricting the internal water circuit, descaling can often restore normal water flow. However, if the machine still isn't pumping water after completing the full descaling programme, further diagnosis may be required.

A loud buzzing pump with little or no water usually indicates that the pump is trying to move water but is unable to. Common causes include an air lock, blocked water circuit, empty water tank or severe limescale build-up.

Yes. An old or incorrectly installed water filter can reduce or prevent water flow on some machines. Replacing the filter and priming it correctly may restore normal operation.

If you've checked the water tank, removed any air lock, completed a full descale cycle and replaced the water filter where applicable, but the machine still won't pump water, there may be a fault with the pump, valve or another component within the hydraulic system that requires professional diagnosis.