Calling up fault codes from the fault memory (fault history)
The 10 most recent faults are saved
and may be scanned.
The faults are ordered by date, thus
the most recent fault is fault number 1.
Press the following keys:
1.
G
+
d
simultaneously for
approx. 2 s.
2.
a
/
b
for individual fault
codes.
3.
Note
All saved fault codes can be
deleted with
e
.
4.
d
Scanning is completed.
Fault codes
Fault
code
on the
display
Const.
Weath.-
comp.
System char-
acteristics
Cause
Measures
0F
X
X
Control mode
Service
Service the equip-
ment. After the
service, set cod-
ing address
"24:0".
10
X
Regulates as
if the outside
temperature
was 0 °C
Outside tem-
perature
sensor
shorted out
Check the outside
temperature sen-
sor (see page 81).
18
X
Regulates as
if the outside
temperature
was 0 °C
Outside tem-
perature
sensor lead
broken
Check the outside
temperature sen-
sor (see page 81).
20
X
Regulates
without flow
temperature
sensor (low
loss header)
System flow
temperature
sensor
shorted out
Check the low
loss header sen-
sor (see page 82).
Fault display
(cont.)
70
Troubleshooting
5692
761
GB
Summary of Contents for Vitodens 200-W WB2B Series
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