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Vitotronic 100, GC1B / Vitotronic 300-K, MW1B Installation and Service
Fault Display
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.
1. Press OK and simultaneously for approx. 4 sec.
2. “Fault history”
3. “Display?”
Troubleshooting, Vitotronic 300-K
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 faults
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.
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