Your instantaneous water heater CEX was manufactured conscientiously and checked
several times before delivery. Should malfunctions nevertheless occur, it is usually only
due to a bagatelle. First attempt to switch the house fuses off and on again in order to
reset the electronics. Next, try to remedy the problem with reference to the following
table. In doing so, you will avoid unnecessary expense of customer service assistance.
Repairs must only be carried out by
authorised professionals.
If a fault in your appliance cannot be
rectified with the aid of this table, ple-
ase contact the service organistion of
your importer or the Central Customer
Service Department at CLAGE.
Please
have the details of the typeplate at
hand.
Problem Cause Solution
Water stays cold
Master fuse trip-
ped
Renew or activate fuse
STDB tripped Reset STDB by customer service
Display flashes error message
“Er“
Control system
has switched off
Switch fuse off and on. If “Er“
still flashes contact customer
service
Flow rate of hot water too
weak
Outlet fitting dirty
or calcified
Clean shower head, jet regula-
tor or sieves
Fine filter dirty or
calcified
Let clean fine filter by a speci-
alist
Selected temperature is not
reached , “MAX“ lights up
Water flow rate
too high
Reduce water flow rate at the
tap
Selected temperature is not
reached , “MAX“ does not light
Cold water has
been added via
the tap
Tap hot water only; set tempera-
ture for use
Symbol “sun“ lights up
Inlet temperature
exceeding nomi-
nal temperature
Reduce inlet temperature
CLAGE GmbH
Central Customer Service
Pirolweg 1 – 5
21337 Lüneburg
Tel.: (+49) 4131 89 01-40
Fax: (+49) 4131 89 01-41
E-Mail: service@clage.de
5. Trouble-shooting and service
MADE IN GERMANY
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