9
Operation 4
Instructions for use ecoMAX 9
4.6 Resetting the appliance
Fig. B.11 Resetting the appliance
When a hot water tap (ecoMAX 800 series only) or the
central heating system requires heat, the boiler automa-
tically ignites and starts to operate. If the automatic igni-
tion is not successful within 5 attempts, then the boiler
does not go into operation and switches to “Lock out”.
This is indicated by a fault code “F.28” or “F.29” on the
display.
A new attempt to ignite the flame can then only be per-
formed after pressing the “Reset” button.
• Press the “Reset” button (1) and hold for approx.
1 second.
Attention!
If the boiler still shuts off after a third attempt,
then please consult your installer or Vaillant
Service Solutions.
The boiler also switches to “Fault” when there is not
enough water in the system. This fault is indicated by
fault code “F.22” “F.23” or “F.24”.
The boiler can only be placed back in operation after the
heating system has been properly refilled with water.
In the unlikely event of any other fault developing, which
prevents the boiler from operating, the display will also
show other fault codes. If a fault code is displayed please
contact your installer or Vaillant Service Solutions.
Note!
If contacting Vaillant Service Solutions please
remember to quote the fault code, as this will
help to pinpoint the fault.
max. 3 x !
