17
DE
GB NL FR
5.
TROUBLE SHOOTING
Fault
Explanation
Solution
The indicator lamp
does not light up
No voltage.
Check fuse and socket.
Device has reached the set
temperature.
No need to do anything.
Water temperature
not as required
Thermostat set incorrectly.
Change the setting of the
thermostat.
Too little / no water
Water pressure too low.
Check whether other cold
water taps have the same
problem.
Stop valve not fully open.
Open the stop valve.
No water.
The device should be turned
off as soon as possible! See
also „The device does not
work.“
Water lying below
the device
The device is leaking.
Notify the place of purchase.
Water pipes are not securely
connected to the device.
Check the water connections.
Tap drips when heat-
ing up
Is normal due to the expansion
of the heated water.
No need to do anything.
Bubbling noises in
the tank
Too much calcification.
The device must be de-scaled
by an expert.
The leakage current
circuit breaker is trig-
gered
Too many devices on the safe-
ty group.
Remove some devices from
the group or look for an
empty group.
The device does not
operate at all
If the device no longer operates, check whether the fuse or
the leakage current circuit-breaker has tripped. The hot water
reservoir is equipped with a maximum temperature switch to
ensure your safety. The device will automatically switch off if
excessive heating takes place. When this happens, switch off
the appliance for a few minutes by removing the plug from the
power supply socket and allow the appliance to cool. The ap-
pliance can be reconnected to the mains power supply again
after approximately 20 minutes.
