Lack of pressure in kitchen tap

[scamp]

Hi everyone. We had our two leisure batteries changed recently and since then there is a lack of pressure in the kitchen tap. Could the lack of pressure be somehow related to the changing of the leisure batteries? Maybe something has not been reconnected? The water pump still works because you can hear it. The water pressure in the tap is not as it should be and once the tap is opened the initial pressure drops dramatically. We have stopped using the tap because we don't want to put any strain on the pump.
Have read lots of the posts regarding the microswitch. Could it possibly be this even though the pump is still working?
We have a 2007 Cali and the batteries were changed by a VW dealer.Our water pump was also changed within the last two years.
Thanks in advance for any advice.

 

[WelshGas]

Hi everyone. We had our two leisure batteries changed recently and since then there is a lack of pressure in the kitchen tap. Could the lack of pressure be somehow related to the changing of the leisure batteries? Maybe something has not been reconnected? The water pump still works because you can hear it. The water pressure in the tap is not as it should be and once the tap is opened the initial pressure drops dramatically. We have stopped using the tap because we don't want to put any strain on the pump.
Have read lots of the posts regarding the microswitch. Could it possibly be this even though the pump is still working?
We have a 2007 Cali and the batteries were changed by a VW dealer.Our water pump was also changed within the last two years.
Thanks in advance for any advice.

The tap is working as is the pump, but poor flow.
1. Check the water pipe to the tap is not kinked. Check at the tap end R kitchen cupboard and remove cutlery draw. Pump end, open rear wardrobe door, remove shelf above gas locker and examine pipe coming out of water tank.

2. If no kinks, unplug electrical connector to tap. Follow wire from tap to a connector block under the sink, normally wrapped in foam on R side of sink. Unplug and use paper clip to bridge contacts in the plug NOT connected to tap.
If you get good flow, problem with tap. If you don’t get good flow problem with pump.

 

[scamp]

The tap is working as is the pump, but poor flow.
1. Check the water pipe to the tap is not kinked. Check at the tap end R kitchen cupboard and remove cutlery draw. Pump end, open rear wardrobe door, remove shelf above gas locker and examine pipe coming out of water tank.

2. If no kinks, unplug electrical connector to tap. Follow wire from tap to a connector block under the sink, normally wrapped in foam on R side of sink. Unplug and use paper clip to bridge contacts in the plug NOT connected to tap.
If you get good flow, problem with tap. If you don’t get good flow problem with pump.

Hi Welsh Gas,
We did check number 1, as you suggested but we didn’t find a problem.
We booked it in at the VW garage, as we did’t feel confident playing with the connector block under the sink. They changed the tap because you could hear the water pump working, which they had replaced in July 2020. We immediately pointed out that the pressure hadn’t improved though so we didn’t get charged for it.
We continued to use our Cali, sometimes using water out of the tank or sometimes using water out of the taps on campsites. Eventually the pump stopped working! I searched through posts on here and tried sucking on the tap, as someone had suggested. The pump did kick in at times but the pressure was still poor. Eventually the pump packed in completely and I couldn’t get it to re-start with the sucking method, so another rdv was made at the VW garage!
The garage replaced the water pump, but it didn’t work when they opened the tap, so they had to investigate further. They discovered that there wasn’t enough electricity getting through to start the water pump. Anyway, they discovered that the earth cable had oxydised/corroded and therefore the contact was very poor which in turn had resulted in burning out the water pump. This involved taking the fridge out or apart to get to the earth cable. The earth cable or contact has been replaced and everything is working ok now! Also, we didn’t get charged.
Hope that this all makes sense. It will do to somebody with a greater understanding of the circuits in the Cali than we have.

 

[WelshGas]

Hi Welsh Gas,
We did check number 1, as you suggested but we didn’t find a problem.
We booked it in at the VW garage, as we did’t feel confident playing with the connector block under the sink. They changed the tap because you could hear the water pump working, which they had replaced in July 2020. We immediately pointed out that the pressure hadn’t improved though so we didn’t get charged for it.
We continued to use our Cali, sometimes using water out of the tank or sometimes using water out of the taps on campsites. Eventually the pump stopped working! I searched through posts on here and tried sucking on the tap, as someone had suggested. The pump did kick in at times but the pressure was still poor. Eventually the pump packed in completely and I couldn’t get it to re-start with the sucking method, so another rdv was made at the VW garage!
The garage replaced the water pump, but it didn’t work when they opened the tap, so they had to investigate further. They discovered that there wasn’t enough electricity getting through to start the water pump. Anyway, they discovered that the earth cable had oxydised/corroded and therefore the contact was very poor which in turn had resulted in burning out the water pump. This involved taking the fridge out or apart to get to the earth cable. The earth cable or contact has been replaced and everything is working ok now! Also, we didn’t get charged.
Hope that this all makes sense. It will do to somebody with a greater understanding of the circuits in the Cali than we have.

Thank you for “ closing the loop “ as they say. Very informative.