11
Operation 4
Instructions for use ecoMAX 11
4.9 Troubleshooting
In the unlikely event that a problem occurs with the ope-
ration of the ecoMAX boiler, the following points should
be checked:
1 Boiler fails to operate:
• Is the gas supply turned on? (see page 9)
• Is the water supply turned on? (see page 9)
• Is there enough water in the heating system? (see
page 10)
• Is the electrical supply switched ON?
• Is the main ON/OFF control in the “ON” position?
(switch position “I”) (see page 10)
• Is the burner lock out indicator light illuminated?
(see page 13)
2 Hot water operates but no central heating
(ecoMAX 800 series only)
• Is the heating turned ON? (see page 12)
• Are all external heating controls ON? (see page 12)
Attention!
If your boiler still does not operate then please
consult your installer or Vaillant Service
Solutions (0870 6060 777).
4.10 Care and maintenance
Clean the outer casing of your boiler with a damp cloth
and a little soap. Do not use abrasive or solvent cleaning
agents that may damage the case or the plastic fittings.
The appliance should be serviced at least once per year.
To ensure regular servicing, it is strongly recommended
that arrangements are made with your service agent or
Vaillant Ltd.
For further details please contact Vaillant Service
Solutions: (0870 6060777).
4.11 Frost protection
Your boiler is equipped with a frost protection function:
If the heating water temperature drops below 5 °C when
the main switch is ON, then the boiler goes into operati-
on and heats the boiler circuit to approx. 30 °C.
Note!
It cannot be guaranteed that water will circulate
throughout the entire heating system.
If the boiler is not operated for several hours during
very cold weather there is therefore the possibility of
the system freezing.
Please ensure that if you are absent during a period of
frost the central heating remains in operation and all
rooms are kept above freezing point.
It must be remembered, however, that the boiler will be
automatically switched off by the built in monitoring
devices if certain faults occur, e.g. interruption in the gas
or electricity supply or faults in the flue gas system. To
overcome this possibility you can drain both the central
heating system and boiler.
Note!
Frost protection and monitoring devices can
only function when the main switch of the unit
is set to the “I” position and the boiler is
connected to the electrical supply.
