STIEBEL ELTRON DHE 18 Gebrauchs- Und Montageanweisung Seite 31

English
Fault recovery by installer
Service mode activated. Unit live Display.
1. Briefly press push-button.
appear. Pressing the thermostat
code . In the event of multiple errors these can be
retrieved in succession by pressing the thermostat.
Once all errors have been read the unit automatically
switches to the „Temperature" display.
Hot water tap open.
2. Switch to service mode „Temperature" by pressing
thermostat.
3. Switch to service mode „Inlet temperature" by
pressing thermostat.
4. Switch to service mode „Outlet temperature" by
pressing thermostat.
5. Switch to service mode „Throughflow" by pressing
thermostat.
6. Switch to service mode „Output" by pressing
thermostat.
7. Return to 1 etc. by pressing thermostat.
8. Exit service mode by pressing „
Close hot-water tap.
Tab. 5
In items 1 - 7 the setpoint temperature can be retrieved or
changed using the memory push-buttons M1 and M2:
Press „M1" è setpoint temperature 30 °C
Press „M2" è setpoint temperature 60 °C.
Error code table
inlet sensor
inlet sensor
inlet temperature
outlet sensor
outlet sensor
Tab. 6
Display
and
displays the error
" push-button.
short circuit
break
> 55 °C
short circuit
break
Explanation
symbol and light up. In the event of
errors an error code, e.g. „
thermostat is pressed, see Table 6 „Error code".
Bar is actuated as far as 1st segment. Setpoint, e.g.
, is displayed.
nd
Bar is actuated as far as 2 segment. Display changes
to inlet temperature, „°C".
Measure inlet temperature, if non-conforming,
temperature sensor is faulty. Replace power
electronics board (Fig. 7, item 15).
Bar is actuated as far as 3 rd segment. Display changes
to outlet temperature, „°C".
Measure outlet temperature, if non-conforming,
check hot-water temperature sensor (Fig. 7,
item 19).
th
Bar is actuated as far as 4 segment. Display changes
to current flow rate, „l/min".
a) Measure flow rate, if non-conforming, check flow
meter (Fig. 7, item 23).
b) Check motor-operated valve:
Press M1 Setpoint = 30 °C
Press M2 Setpoint = 60 °C
th
Bar is actuated as far as 5 segment. Display changes to
standardized power, „%".
SERVICE symbol disappears, setpoint displayed.
Error messages are deleted.
outlet temperature
Hall signal level
safety monitor
safety monitor
motor-operated valve
" appears if the
Motor open
Motor closed
> 70 °C
faulty
faulty
faulty
faulty
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