17
DE
GB NL FR
5. trouBle shooting
First aid
•
Check the leakage protection switch and the fuses.
•
Check if any fittings or shower head are affected by the build-up of limescale or dirt.
•
See also „Troubleshooting by users“.
Troubleshooting by users
Problem
Cause
Remedy
No hot water.
No electricity.
Check the leakage protection
switch and the fuses in the
consumer unit.
Hot water tap is not opened. Open the hot water tap.
Although the hot water tap
is fully open, the device does
not switch on.
The required minimum flow
to activate the device is not
reached. Dirt or limescale has
built up in the aerators of the
taps or in the shower head.
Increase the flow.
Clean or descale the device.
Troubleshooting by experts
Problem
Cause
Remedy
The „Red“ stage of the device
does not switch on.
The pressure on the cold wa-
ter pipe is too low.
Descale or clean the shower head
and aerators.
Fouling.
Clean the cold water strainer.
Although the hot water tap is
fully open, the flow controller
does not activate.
The required minimum flow
to activate the device is not
reached.
Clean the cold water strainer.
The heating system does not
switch on / No hot water.
No electricity.
Check the leakage protection
switch and the fuses in the
consumer unit.
Heater faulty.
Measure the resistance of the de-
vice and replace it if necessary.
If the appliance still fails to operate after you have executed this procedure, please inform the customer
service.
Summary of Contents for 42320092
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