5
A fault, what to do?
CAUTION:
Attention!
▶ Repairs must only be carried out by an authorised technician.
Improper repairs can lead to risk of serious injury to the user.
5.1
Faults that the customer can troubleshoot himself
Fault
Water flow-rate is too low.
A high water temperature is set, but it is not
reached.
The display is blank.
The water is not warm.
The temperature of the water leaving the tap is
higher than the set temperature.
"°C" flashes in the display.
If the fault could not be eliminated, please call customer service.
5.2
Faults that the customer service specialist should troubleshoot
Fault
Water flow-rate is too low despite cleaning of
filter using the water tap or showerhead.
The display is blank despite fault-free function of
the mains electricity supply fuses.
The display shows the error code "E..".
5.3
Faults that are automatically remedied
Fault
The display shows "00,0°C".
6 720 891 049 (2019/01)
If your appliance does not operate as required, it is often due to a very
minor problem. Please check whether you can remedy the fault yourself
by using the following guidelines. You will save yourself the costs of an
unnecessary visit by customer service personnel.
Cause
The filter in either the water tap or the
showerhead is clogged.
The continuous-flow heater is connected to a
thermostatically-controlled water tap.
The fuse in the fusebox has tripped/blown.
The supply temperature has reduced.
The temperature of the water supplying the
continuous-flow heater is higher than the set
temperature (e. g. due to pre-warmed water
supplied from a solar water heater).
The power limit has been reached.
Cause
A filter in the appliance is clogged.
There is a fault in the appliance.
There is a fault in the appliance.
Cause
The air sensor in the appliance detects air in the
water and momentarily switches the heating
element off.
A fault, what to do?
Solution
Remove the filter and either clean it or descale it.
Set the temperature on the continuous-flow
heater to „60 °C".
Check the fuse in the fusebox.
Reduce the water flow on the taps until the
desired water temperature is reached.
The thermostatic premixer in the domestic
supply must be set accordingly to lower
temperatures.
Reduce the water flow at the tap or lower the
temperature setting on the appliance.
Solution
Get a servicing expert to clean the appliance.
Get a servicing expert to check the appliance.
Get a servicing expert to check the appliance.
Solution
After a few seconds, the continuous-flow heater
automatically goes back into operation.
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