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DE NL GB F TR PLDE NL GB F TR PL
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 pos-
sible! See also „The de-
vice does not work.“
Water lying be-
low 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
heating up
Is normal due to the expan-
sion 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 cir-
cuit breaker is triggered
Too many devices on
the safety 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 hap-
pens, switch off the appliance for a few minutes by remov-
ing the plug from the power supply socket and allow the
appliance to cool. The appliance can be reconnected to the
mains power supply again after approximately 20 minutes.
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