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.
Table 5
In items 1 - 7 the setpoint temperature can be retrieved or changed using the memory push-buttons M1 and M2:
Press „M1" ! setpoint temperature 30 °C
Press „M2" ! setpoint temperature 60 °C.
Error code table
!
inlet sensor
! inlet sensor
!
inlet temperature
! outlet sensor
! outlet sensor
!
outlet temperature
Table 6
Display
and
ERROR
displays the error
" push-button.
!
short circuit
! break
!
> 55 °C
! short circuit
! break
!
> 70 °C
Explanation
symbol and
ERROR
errors an error code, e.g. „
is pressed, see Table 6 „Error code".
thermostat
E R R O R
Bar is actuated as far as 1st segment. Setpoint, e.g.
„ ", is displayed.
°
C
°
C
Bar is actuated as far as 2
to inlet temperature, „°C".
°
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
to outlet temperature, „°C".
°
C
! Measure outlet temperature, if non-conforming,
check hot-water temperature sensor (Fig. 7,
item 19).
Bar is actuated as far as 4
to current flow rate, „l/min".
a) Measure flow rate, if non-conforming, check flow
meter (Fig. 7, item 23).
l
b) Check motor-operated valve:
min
Press M1 ! Setpoint = 30 °C
!
Press M2 Setpoint = 60 °C
Bar is actuated as far as 5
to standardized power, „%".
° °
E R R O R
SERVICE symbol disappears, setpoint displayed.
Error messages are deleted.
! Hall signal level
! safety monitor
! safety monitor
! motor-operated valve
light up. In the event of
" appears if the
nd segment. Display changes
segment. Display changes
rd
th segment. Display changes
! Motor open
!
Motor closed
th segment. Display changes
! faulty
! first start-up followed incor-
rect sequence or unit faulty
! faulty
! faulty
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