P.16
P.17
If the connection cable is damaged, it must be replaced with an original spare cable from the manufacturer by
an authorised technician in order to avoid any hazards.
If you cannot rectify the fault with the aid of the troubleshooting table, please contact customer service and
repair centre (refer to page 35).
The following table will help you to determine and rectify the reasons for possible problems.
5. Troubleshooting
Problem
Possible cause
Remedy
No water flows
Water supply is turned off
Open the main water valve and angle valve
Water flows more slowly
than expected
Special tap aerator is not fitted
Fit the special tap aerator
Water pressure too low
Check the water flow pressure
Dirt in the pipes
Remove any dirt from the filter, angle valve
and tap
The appliance switches
itself on and off
Water pressure fluctuates,
flow rate is too low
Remove any dirt / increase the water flow
pressure, close other taps, open angle
valve further
Water remains cold even
though the appliance
switches on
Electric supply incorrect
Check the electric supply
No voltage
Check fuses in the electrical installation
Faulty heating element
Replace heating element (by authorised
technician)
Appliance does not
switch on and the water
remains cold
Water connections mixed up
Check installation
Water flow pressure too low
Check water flow setting (by authorised
technician), open angle valve further,
check water pressure
Dirt in the pipes
Remove dirt from the inlet and outlet pipes
Hot water temperature
varies
Water pressure fluctuates
Stabilise the water flow pressure
Supply voltage varies
Check the supply voltage
Hot water temperature is
too low
Flow rate is too high or inlet tem-
perature is too low
Adjust the water flow (by authorised
technician)
Power supply is too low
Check the power supply
Spare parts
When ordering spare parts, please always specify the appliance model and serial number.
5. Troubleshooting
Wall bracket
Power supply cable
Hot water connection
Cold water
connection
Strainer
Heating element
