17
Operating manual ecoTEC 0020052777_00
4.10
Maintenance and customer service
To ensure that the unit is always ready for operation, is
operationally safe and reliable and has a long working
life, inspection/maintenance must be carried out
annu-
ally
by an expert technician or by Vaillant.
Further information can be obtained from Vaillant Serv-
ice Solutions . (0870 6060 777).
d
Danger!
Danger of property damage and personal injury
from improper handling!
Never attempt to perform maintenance or re-
pairs on the gas wall-mounted boiler yourself.
Assign an approved qualified servicing company
with this work. We recommend making a main-
tenance agreement.
The operational reliability of the device can be
impaired, resulting in damage to property or
personal injury, if maintenance work is not car-
ried out.
Regular maintenance maximises the efficiency of your
gas-fired wall-mounted boiler and therefore makes it
more economical to run.
Operation 4
