Scanning all stored ("historic") fault messages
Menu item
&
"
Information
"
&
"
Statistics
"
&
"
Fault history
"
–
Press "
TIME
", to display the time
of the fault occurrence
–
Press "
FAULT
" to return to the
fault description.
&
"
BACK
"
Note
The fault messages cannot be
acknowledged in the fault history.
Skipping fault messages
To enable adjustments/scans at the
control unit:
1.
Open the programming unit flap. All
current fault messages will be dis-
played.
2.
Press "
BACK
".
The main menu will be displayed.
You can now make adjustments
and scans.
Displaying fault messages
Note
The sensor resistance curves required for testing the sensors are on page 173.
Fault messages
Cause
Measures
System fault
Control unit processor
faulty
Replace programming unit
10
Outside tempera-
ture sensor
Short circuit
Check the sensor; replace if
required
18
Outside tempera-
ture sensor
Lead broken
Check the terminals; replace
the sensor, if required
20
Sec. flow sensor
Short circuit
Check the sensor; replace if
required
28
Sec. flow sensor
Lead broken
Check the terminals; replace
the sensor, if required
30
Primary in sen-
sor
Short circuit
Check the sensor; replace if
required
38
Primary in sen-
sor
Lead broken
Check the terminals; replace
the sensor, if required
Control unit diagnostics
(cont.)
115
Troubleshooting
55
92
968
GB
Service
Содержание VITOCAL 200-G
Страница 8: ...Certificates Declaration of conformity 201 Keyword index 202 Index cont 8 Index 5592 968 GB ...
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Страница 122: ...Main menu Information Menu structure overview information 122 Control settings 5592 968 GB ...
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