What should I do when my dishwasher shows the water tap error light?
When the water tap error warning light shows, firstly turn off and unplug your dishwasher.
The first step is to pull out the dishwasher,
and check that the houses behind the appliance are not trapped or
kinked. If the dishwasher is built in, you will need to access the cupboard from the side.
If you're not sure how to do that please follow the mounting and installation instructions of the dishwasher.
when replacing the dishwasher, pull on the hoses as you push the dishwasher back into position so that
they are not trapped because this will restrict the water flow.
As a second step, you will also need to double-check that the water supply is turned on and functioning correctly.
check if the water tap can be easily turned on and off as shown
you will also need to check your water supply to the
appliance which should be 10 litres per minute. Turn off the water supply by twisting clockwise.
Remove the inlet hose by using a towel as shown.
Then check there is no water still flowing
Place a bucket under the water supply and turn fully on the water
Once you have checked the tap is running at 10 liters per minute
turn it off
reattach the hose
and turn the supply back on
please note that some older taps can cause this error when a dishwasher is installed because no water is flowing even when
the tap position appears to be on as the mechanism has not engaged.
Always check for leaks afterwards.
The third step is to clean the detachable filter in your inlet hose. The two different types of hose we use in
our dishwashers are shown.
In both cases the filter is removed using for example a pair of needle pliers very carefully
You will need to pull fairly hard to detach it
you can now clean the filter under the tap.
The filter should be securely reattached to the hose using the pliers ensuring it
is fully and securely pressed in
Hold it in the middle and not the side to avoid damaging the filter
For step four, check the drainage of the appliance which is usually wireless spigot
which connects the appliance to the drainage system
Check that the end of the spigot has been cut off during installation and the blocking plug
inside has been removed
unscrew the collar
detach the hose
and check it is not blocked by any residues
then unscrew the spigot
and also check that this isn't blocked
reattach the spigot securely
and then the hose ensuring it is tightly connected using the collar
The fifth and final check you need to make is the wastewater pump which may be blocked and causing the error it is
It is located below the filter inside the dishwasher
near to the lower spray arm
unscrew and remove the filter unit from the base of the dishwasher
please use protective gloves as sharp objects such as glass fragments can connect in the pump area.
use a tea spoon to unclip the pump cover which can be then pulled out and lifted away
Then, check the pump area and remove any objects which might be preventing the
pump impeller from rotating
Finally check that the pump impeller can turn freely and all obstructions are removed
the pump cover has to be replaced and clicked back into position
you will hear a click sound when it's secured
replace the filter unit and twist clockwise to ensure the marker and the arrow line up and the cover is properly engaged.
you can then plug in turn on and use the appliance.
Test it using the pre-wash program
please check and follow these steps
if you need further information please refer to the instruction manual
to find out more about our cleaning and care products or to arrange an engineer
visit please visit the Bosch home appliances website