Technical data

Instructions for Use ecoTEC plus 9
Operation 4
Pump running
Display Meaning
Displays during heating operation
S. 0
S. 1
S. 3
S. 4
S. 6
S. 7
S. 8
S.30
S.31
S.34
S.20
S.24
No heat required
Ignition sequence (heating operation)
Burner ignited
Fan and pump overrun
Pump overrun
Anti cycling mode (after heating operation)
Room thermostat no heating demand
Summer mode active
F
rost protection mode
Displays in cylinder charging mode
(with optional accessories fitted)
Cylinder charging request
Cylinder charging burner on
2
1
1
Table 4.1 Status codes (selection, a complete set of
status codes can be found in the installation and
servicing manual)
4.8 Troubleshooting
In the unlikely event that a problem occurs with the
operation of the ecoTEC boiler, the following points
should be checked:
Boiler fails to operate:
– Is the gas supply turned on?
– Is there enough water in the heating system?
– Is the electrical supply switched on?
– Is there an ignition problem?
Caution!
Inappropriate modifications can cause damage.
If your boiler still does not operate then please
consult your installer or Vaillant Service
Solutions (0870 6060 777).
4.8.1 Ignition problems
Fig. 4.9 Troubleshooting
If the burner fails to ignite after five attempts, the
device does not start up and switches to “Fault”. This
is indicated by the fault code “F.28” or “F.29” in the
display.
The display also shows the flame symbol with a cross
through it (1).
Automatic ignition can only take place after you
manually reset the fault.
• To reset the fault, press the reset button (2) and
hold it down for one second.
Caution!
If the boiler still shuts off after three attempts
of resetting, please consult your installer or
Vaillant Service Solutions.
4.8.2 Flue problems
This appliance is fitted with a fan. If the fan does not
work properly, the appliance will switch itself off.
The display shows the symbols
and and the fault
message “F.32”.
Note!
If contacting Vaillant Service Solutions please
remember to quote the fault code, as this will
help to pinpoint the fault.
4.9 Turning off the boiler
Fig. 4.10 Switching off the appliance
• Turn the main on/off control (1) fully anti clockwise.
Caution!
The boiler frost protection and monitoring
systems are only active when the electrical
supply to the boiler is on and it is not
disconnected from the main power supply.
To ensure that these protection devices remain active,
switch your boiler on and off using the external
controller.
Note!
If the appliance is switched off for a long time
(for example when you are on holiday) you
should also turn off the gas supply and the
electrical supply.
Supplied by HeatingSpares247.com