66
Weather-compensated control unit
In the event of a fault, red fault indicator
A
flashes.
" "
flashes on the display and
"Fault"
is shown.
R
bar
A
Fig. 34
Press
OK
to display the fault code.
For an explanation of the fault code, see the following
pages.
For some faults, the type of fault is also displayed in
plain text.
Acknowledging a fault
Follow the instructions on the display.
Note
■
The fault message is transferred to the standard
menu.
■
Any fault message facility connected will be switched
off.
■
If an acknowledged fault is not remedied, the fault
message will be redisplayed the following day and
the fault message facility restarted.
Calling up acknowledged faults
Select
"Fault"
in the standard menu. Current faults will
be listed.
Calling up fault codes from the fault memory (fault
history)
The 10 most recent faults (including those remedied)
are saved and can be called up.
Faults are sorted by date.
1.
Press
OK
and
å
simultaneously for approx. 4 s.
2. "Fault history"
3. "Display?"
Deleting the fault history
1.
Press
OK
and
å
simultaneously for approx. 4 s.
2. "Fault history"
3. "Delete?"
Fault codes
Fault code dis-
played
System characteristics
Cause
Measures
10
Controls as if the outside
temperature were 0 °C
Short circuit, outside tem-
perature sensor
Check outside temperature sensor
(see page 72)
18
Controls as if the outside
temperature were 0 °C
Lead break, outside tem-
perature sensor
Check outside temperature sensor
(see page 72)
19
Controls as if the outside
temperature were 0 °C
Communication interrup-
tion, outside temperature
sensor RF
Check wireless connection (place
outside temperature sensor RF
close to the wireless base station).
Wireless base station instal-
lation and service instruc-
tions
Replace outside temperature sen-
sor RF.
20
Regulates without flow tem-
perature sensor (low loss
header)
Short circuit, system flow
temperature sensor
Check low loss header sensor (see
page 73)
Troubleshooting
Fault display
5686 293 GB
Diagnosis
Содержание J3HA
Страница 10: ...10 2x 1 2 4 3 Fig 2 Installation sequence Mounting the boiler and making connections 5686 293 GB Installation ...
Страница 21: ...21 2 3 2x 1 Fig 14 Installation sequence Fitting the front panel 5686 293 GB Installation ...
Страница 78: ...78 Troubleshooting Maintenance cont 5686 293 GB Diagnosis ...
Страница 90: ...90 0004 0006 0005 0003 0001 0002 Fig 51 Parts lists Miscellaneous assembly 5686 293 GB Components ...
Страница 114: ...114 5686 293 GB ...
Страница 115: ...115 5686 293 GB ...