Troubleshooting; Installation; Safety; General Safety Instructions - Stiebel Eltron DCE-X 6/8 Premium Utilisation Et Installation

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Troubleshooting

6. Troubleshooting
Problem Cause
The appliance will not There is no power.
start despite the DHW
valve being fully open.
The aerator in the tap
or the shower head is
scaled up or dirty.
The water supply has
been interrupted.
When hot water is being The air sensor is detect-
drawn off, cold water ing air in the water. It
flows for a short period. briefly switches off the
heating output.
The required tempera- The high limit safety
ture cannot be set. cut-out and/or internal
anti-scalding protection
is enabled.
The flow rate is too low. ECO function is enabled. Select a different ECO
Boiling noises are heard The appliance is not
during operation. vented.
The supply pressure is
too low.
No settings can be made The operating lock is
on the programming enabled.
unit.
Note
Programming unit displays and selected settings are re-
tained following a power failure (with the exception of
the time).
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate (000000-0000-000000).
www.stiebel-eltron.com
remedy
Check the fuses / MCBs in
your fuse box / distribu-
tion board.
Clean and/or descale the
aerator or shower head.
Vent the appliance and
the cold water inlet line
(see chapter "Installa-
tion / Commissioning /
Initial start-up").
The appliance restarts
automatically after
1 minute.
Deactivate the temper-
ature limit. The internal
anti-scalding protection
can only be adjusted by a
qualified contractor.
level or disable the ECO
function.
Vent the appliance (see
chapter "Installation /
Commissioning / Initial
start-up").
Ensure that the mini-
mum supply pressure is
achieved (see chapter
"Installation / Specifica-
tion / Data table").
To deactivate the oper-
ating lock, press the "i"
button for more than
12 seconds.
Nr.: 000000-0000-00000

iNSTallaTiON

7.

Safety

Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
7.1

General safety instructions

We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used.
Material losses
!
Observe the maximum inlet temperature. Higher tem-
peratures may damage the appliance. You can limit the
maximum inlet temperature by installing a central ther-
mostatic valve.
WARNING Electrocution
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly exceed 60 V DC.
7.2

Shower operation

CAUTION Burns
f When supplying a shower, set the internal an-
ti-scalding protection to 55 °C or less; see chapter
"Commissioning / Preparations".
CAUTION Burns
If operating with preheated water, e.g. if using a solar
thermal system, observe the following information:
The DHW temperature may exceed the set temperature
or a set temperature limit.
f In this case, limit the temperature with an upstream
central thermostatic valve.
7.3

Instructions, standards and regulations

Note
Observe all applicable national and regional regulations
and instructions.
- The protection rating IP 25 (hoseproof) is only guaranteed
with a properly fitted cable grommet and the use of counter-
sunk screws Ø 4.5 mm with a max. head diameter of 9 mm.
- The electrical resistivity of the water must not fall below that
stated on the type plate. In a linked water network, take into
consideration the lowest electrical resistivity of the water.
Your water supply utility will advise you of the electrical re-
sistivity or conductivity of the water in your area.
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