91
In the event of a fault, the red fault display flashes at
the control unit.
"Fault"
is displayed and flashes.
The fault code is displayed with
OK
.
Note
If a central fault message facility is connected, this is
started.
For an explanation of the fault code, see chapter "Fault
codes".
For some faults, the type of fault is also displayed in
plain text.
Acknowledging a fault message
Follow the instructions on the display.
Note
The fault message is transferred to the menu.
A fault message facility, if connected, will be switched
OFF.
If an acknowledged fault is not remedied, the fault
message will be re-displayed the following day and the
fault message facility restarted.
Calling up acknowledged fault messages
Extended menu:
1.
2.
"Fault"
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.
Note
The list can be deleted.
Service menu:
Press
OK
and
simultaneously for approx. 4 s.
Fault history
Delete?
Display?
Select with
(
Fig. 52
Fault codes
Fault code dis-
played
System characteristics
Cause
Measures
10
Regulates as if the outside
temperature were 0 °C.
Short circuit, outside tem-
perature sensor
Check outside temperature sensor
(see page 107)
18
Regulates as if the outside
temperature were 0 °C.
Lead break, outside tem-
perature sensor
Check outside temperature sensor
(see page 107)
Troubleshooting
Fault display
5678 044 GB
Diagnosis
Summary of Contents for D2RA
Page 113: ...113 Maintenance Checking the Vitotronic 200 H accessories cont 5678 044 GB Maintenance ...
Page 133: ...133 Parts lists Sorption module hydraulics cont 5678 044 GB Components ...
Page 136: ...136 0001 0002 0003 0004 0005 Fig 83 Parts lists Miscellaneous 5678 044 GB Components ...
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