Smith water purifier is always dripping off and on when making water. Whats the matter? It is a normal phenomenon that the water purifier makes a sound in the process of water purification. If the water production and effluent effect are not affected, it is not necessary to pay attention to it. If there are problems with water production and effluent effect, there may be the following reasons: a, unstable water pressure may cause the machine to start frequently and make a continuous sound. B, if the low-voltage switch is broken (intelligent) and cannot be closed, it will always give an alarm. C, if the contact of the high voltage switch is poor, it may cause the machine (intake valve) to start frequently and make a continuous sound. D. the damp of the transformer may cause internal short circuit and make noise. E. there is gas in the pipeline, which may make the sound of water rubbing against the machine pipe.