85
If there is a fault, the display shows the fault message
plus .
Note
If a central fault message facility is connected, this is
switched on.
1. Tap in the footer to call up the fault messages.
For an explanation of the fault codes, see the fol-
lowing table.
2. Tap to hide the fault messages.
For an explanation of the fault codes, see the fol-
lowing table.
If "Connection error" and appear on the display:
Check connecting cable and plug between HMU heat
management unit and HMI programming unit.
Acknowledging the fault display
Tap .
Note
Any connected central fault message facility is
switched off.
If an acknowledged fault is not remedied, the fault
message will be redisplayed the following day at
07:00 h, and the fault message facility restarts.
Calling up acknowledged fault messages
Tap the following buttons:
1. " "
2. Tap "Message lists".
The fault messages appear in chronological order.
Note
When troubleshooting, always observe the
subscriber number of the component.
Check the component displayed, rectify the fault if
required. The subscriber number of the component
depends on the position of rotary switch S1 on the
corresponding extension module. The rotary switch
position was set during installation.
To identify the affected module, check the position
of rotary switch S1 on the module if required.
Note
See also page 82
The following is displayed:
■
Date and time of the occurrence of the fault
■
Fault code
■
Description of the fault
■
Subscriber number of the component on which the
fault has occurred:
PlusBus subscriber components
0 EM-S1 extension (ADIO electronics module)
1 - 15 EM-M1, EM-MX and EM-P1 extensions
(ADIO electronics module)
17 - 31 EM-EA1 extension (DIO electronics module)
32 - 47 Cylinder module (electronics module M2IO)
49 - 63 Vitotrol 200-E
64 SDIO/SM1A electronics module
CAN BUS subscriber components
1 HMU heat management unit
50 BCU burner control unit
58 RF module (wireless module)
59 HMI programming unit
60 Fan unit
90 Gateway
Low power radio subscriber components
49 - 63 Vitotrol 300-E
Calling up fault messages from the fault memory
(message history)
The 10 most recent faults (including those remedied)
and service messages are saved and can be called
up.
Faults are sorted by date.
Tap the following buttons:
1. " "
2. "Service"
3. Enter password "viservice".
4. Use to confirm.
5. "Message history"
6. "Faults" to call up saved fault messages.
7. If you wish to delete the list, tap .
8. to confirm.
Troubleshooting
Fault display on the programming unit
5593201
Diagnosis
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