Kitchen water tap sometimes stops pumping. Strange solution.

[tonvdl]

Our kitchen water tap sometimes stops pumping. Its works again after I start the car system with the car key and leave it on for only a few seconds. Very strange since the pump should work on the leisure battery which is 100% and connected to 220v. Any ideas on what's going on here?

 

[tonvdl]

Forgot to mention it is a v class mp 2013.

 

[Chris]

We have the same happen sometimes, no idea why, haven't monitored to work out when it happens as solution is easy! Not even a few seconds, just turn key on and off. We have 2021 V300d AMG.

 

[tonvdl]

Or open and close a door, I just found out.

 

[Novice camper]

We have had the same problem with the tap. We believe it’s a faulty electrical connection under the sink. We open the bottom drawer and tap the sink underneath to fix. Starting the engine and opening/closing the door is probably enough vibration to make the connection.