Service Messages; Calling Up Diagnosis Levels; Installation And Maintenance Instructions Ecotec Pro 0020129672_03; Reading Off The Fault Codes - Vaillant ecoTEC pro Installation And Maintenance Instructions Manual

13 Troubleshooting

13.2.4 Service messages

If the "open-end spanner" maintenance symbol appears
on the display, a service message is present. The mainte-
nance symbol appears if you have set a maintenance inter-
val, for example, (¬ section 11.1.6) and it has elapsed. The
boiler is not in fault mode but continues to operate.
To obtain more information about the service message:
> Call up the "Live monitor" (¬ section 13.2.1).

13.2.5 Calling up diagnosis levels

You can use the diagnostic codes to view parameters and
modify certain parameters (¬ section 9.2) An overview of
the diagnostic codes can be found in ¬ table 11.1.

13.2.6 Reading off the fault codes

If a fault develops in the boiler, the display shows a fault
code F.xx.
Fault codes have priority over all other displays. If a fault
occurs, the display no longer shows the current heating
flow temperature of the heating installation.
If multiple faults occur at the same time, the display shows
the corresponding fault codes for two seconds each in
sequence.
> Remedy the fault.
> To restart the boiler, press the fault clearance key
(¬ Operating instructions).
> If you are unable to remedy the fault and the fault reoc-
curs despite having carried out several resets, contact
Vaillant Service Solutions (0870 6060 777).

13.2.7 Querying the fault memory

The boiler has a fault memory. ¬ section 9.2 describes how
you can call up the fault memory.
Here you can query the last ten faults that occurred in
chronological order.
The display shows:
– the number of faults that have occurred
– the fault currently selected with fault number F.xx.
> You can display the last 10 faults that occurred using the
minus button
56
or the plus button

13.2.8 Resetting the fault memory

You can delete the entire fault list.
> Call up the installer level (¬ section 9.2).
> Set the diagnostic code "D.094" to 1 (¬ section 11.1).
.

Installation and maintenance instructions ecoTEC pro 0020129672_03