Why does the pumping valve of the ADD6920 make repeated clicking sounds before stopping?

Question

Accepted Answer

The clicking of the pumping valve before the end of the cycle is normal behavior for water filters of the ADD6920 type. This noise is produced by the solenoid of the valve, an electromagnetic component that activates and deactivates during the transitions of the filtration cycle.

Why does this noise occur?

The valve contains an electromagnet that switches the water between the raw water circuit and the filtered tank. The clicks correspond to these state changes.
The noise is generally more audible at the end of the cycle when the water pressure decreases.
This is a sign that the valve is functioning correctly.

What to do if the noise has recently appeared?

If this clicking is new (recently appeared), it may indicate:

A buildup of mineral deposits in the valve, especially if your water is hard - this is generally harmless but may affect the accuracy of the cycle.
Natural wear of the solenoid, which becomes more audible over time.
A filter that needs replacing - a clogged filter increases resistance and may amplify the noise.

Recommendations

Check the condition of your filter and replace it if necessary according to the maintenance schedule.
Ensure that the incoming and outgoing water connections are tight.
Observe if the flow of filtered water decreases - if so, this is a sign of clogging.
If the clicking intensifies or is accompanied by a drop in performance, contact Philips support as this may warrant a valve replacement under warranty.

In summary: a slight clicking is normal, but its recent appearance is worth monitoring. If performance remains stable, no urgent action is necessary.

User manual PHILIPS Water dispenser : user manuals and guides in PDF

Models PHILIPS Water dispenser most viewed

Other categories PHILIPS

Recent questions about Water dispenser PHILIPS