4.8.2 Flue Problems; Turning Off The Boiler; Frost Protection; Maintenance And Customer Service - Vaillant ecoTEC plus Instructions For Use Manual

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!
a
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
message "F.32".
h 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

1
Fig. 4.10 Switching off the appliance
• Turn the main on/off control (1) fully anti clockwise.
a Caution!
The boiler frost protection and monitoring
systems are only active when the electrical
supply to the boiler is on and it is not discon-
nected from the main power supply.
To ensure that these protection devices remain active,
switch your boiler on and off using the external controller.
h 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.
Instructions for use ecoTEC plus / 0020020829_03
and and the fault
4.10

Frost protection

The frost protection feature only protects the boiler.
Any other parts of the system liable to frost damage
should be protected accordingly.
a Caution!
The boiler frost protection and monitoring
systems are only active when the electrical
supply to the boiler is on and it is not discon-
nected from the main power supply.
Frost protection function
The boiler has a frost protection function.
If the heating flow temperature falls below 5 °C when
the electrical supply to the boiler is on, the appliance
starts up and heats the boiler to 30 °C.
a Caution!
Parts of the system may freeze. The frost
protection function cannot guarantee that
water flows through the entire heating system.
4.11

Maintenance and customer service

Inspection and maintenance
Permanent operational readiness, reliability and a long
service life require inspections and maintenance work
to be regularly carried out by a competent person or
Vaillant.
For further details please contact Vaillant Service
Solutions: (0870 6060777).
d Danger!
Risk of injury and damage due to improper
handling.
Never attempt to perform maintenance or
repairs on the appliance yourself.
Have a specialist heating company do the work.
We recommend signing a service agreement.
The reliability of the appliance can be impaired,
resulting in damage to property or personal
injury if maintenance work is not carried out.
Regular servicing ensures maximum efficiency and
economical operation of your boiler.
Operation 4
9