STIEBEL ELTRON DHE 18 AU, Эксплуатация и установка, Страница: 9 / 24

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OpErATiON | iNSTAllATiON
Troubleshooting
6. Troubleshooting
problem Cause remedy
The appliance will not
start despite the DHW
valve being fully open.
There is no power. Check the fuses / MCBs in
your fuse box / distribu-
tion board.
The aerator in the tap
or the shower head is
scaled up or dirty.
Clean and/or descale the
aerator or shower head.
The water supply has
been interrupted.
Vent the appliance and
the cold water inlet line.
When hot water is being
drawn off, cold water
flows for a short period.
The air sensor is detect-
ing air in the water. It
briefly switches off the
heating output.
The appliance restarts
automatically after
1 minute.
The required tempera-
ture cannot be set.
The high limit safety
cut-out and/or internal
anti-scalding protection
are enabled.
Deactivate the temper-
ature limit. The internal
anti-scalding protection
can only be adjusted by
qualified contractors.
The flow rate is too low. ECO function is enabled. Select a different ECO
level or disable the ECO
function.
No settings can be made
on the programming
unit.
The operating lock is
enabled.
To deactivate the oper-
ating lock, press the "i"
button for more than
10 seconds.
Note
Programming unit displays and selected settings are re-
tained following a power failure.
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).
Nr. 000000-0000-00000
Nr. 000000-0000-00000
D
00000
53
31
2
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
- The appliance is suitable for supplying a shower
(shower operation). If the appliance is also or exclu-
sively used for shower operation, the qualified con-
tractor must adjust the temperature setting range to
43 °C using the internal anti-scalding protection on
the appliance. When using preheated water, ensure
that the inlet temperature does not exceed 55 °C.
- In Australia, the use of a temperature controller is
required to meet the requirements of AS 3498 when
showers, bathtubs or washbasins are supplied with
water. The maximum temperature of 50 °C must not
be exceeded.
7.3 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
Information for Australia/New Zealand
The installation of this product must comply with the re-
quirements of AS/NZS 3500.4.
- The IP 24 / IP 25 protection rating can only be ensured with a
correctly fitted cable grommet.
- 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.