14
en
A fault, what to do?
Attention!
Repairs must only be carried out by an authorised technician. Improper repairs can lead to risk of serious injury to
the user.
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.
Faults that the customer can troubleshoot himself
Fault
Cause
Solution
Water flow-rate is too low
The filter in either the water tap or the
showerhead is clogged.
Remove the filter and either clean it or
descale it.
A high water temperature is
set, but it is not reached.
The continuous-flow heater is connected
to a thermostatically-controlled water tap.
Set the temperature on the continuous-flow
heater to „60 °C“.
The display is blank.
The fuse in the fusebox has tripped/blown.
Check the fuse in the fusebox.
The water is not warm.
The supply temperature has reduced.
Reduce the water flow on the taps until the
desired water temperature is reached.
The temperature of the water
leaving the tap is higher than
the set temperature.
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 thermostatic premixer in the domes-
tic supply must be set accordingly to lower
temperatures.
lights up in the display.
The power limit has been reached.
Reduce the water flow at the tap or lower the
temperature setting on the appliance.
If the fault could not be eliminated, please call customer service.
Faults that the customer service specialist should troubleshoot
Fault
Cause
Solution
Water flow-rate is too low
despite cleaning of filter using
the water tap or showerhead
A filter in the appliance is clogged.
Get a servicing expert to clean the appliance.
The display is blank despite
fault-free function of the
mains electricity supply fuses.
There is a fault in the appliance.
Get a servicing expert to check the appliance.
The display shows the error
code “E..”.
There is a fault in the appliance.
Get a servicing expert to check the appliance.
Faults that are automatically remedied
Fault
Cause
Solution
The display shows “00,0°C”.
The air sensor in the appliance detects air
in the water and momentarily switches the
heating element off.
After a few seconds, the continuous-flow
heater automatically goes back into operation.
Summary of Contents for DE 628M Series
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