Pump Ulka HF 230V-50HZ-22W

What the vibration pump does

The vibration pump delivers water from the tank or the water supply to the boiler and on to the brew head of the coffee machine. It works on the principle of an electromagnetic piston that uses rapid vibrations to create the pressure needed to push water through the system. Without a working pump, water either won't reach the machine at all, or only insufficiently.

Typical signs of wear

• Louder buzzing or rattling noise during coffee preparation
• Slower pressure build-up or a significantly longer brewing time for espresso
• Irregular or interrupted water flow
• The coffee machine reports a pressure error or the pump doesn't start at all
• Water leakage around the pump caused by worn internal seals

Why you shouldn't put off the replacement

A worn or damaged pump means unstable water pressure, which directly affects extraction quality and coffee taste. Long-term overloading of a weak pump can also put extra strain on other parts of the water system, such as the heating element or valves.

How to choose the right pump

Vibration pumps differ in power, voltage and frequency depending on the specific coffee machine model, so it is essential to check the exact compatibility in the product table before ordering.

Compatible with

• HD8852 Energica
• HD8854 Exprelia
• HD8856 Exprelia
• HD8858 Exprelia
• HD8859 Exprelia
• HD8943 Xelsis
• HD8944 Xelsis
• HD8946 Xelsis