Replacing components
Installation and maintenance instructions ecoTEC 0020173113_01
67
14
14.6
Replacing the PCB and/or the display
e
Danger!
Risk of death from electric shock!
Mains connection terminals L and N remain
live even if the continuous voltage on/off
switch is turned off.
>
Before carrying out repair work on the
boiler, switch the boiler off using the on/
off button.
>
Disconnect the boiler from the power
mains by disconnecting the mains plug
or by de-energising the boiler via a parti-
tion with a contact opening of at least
3 mm (e. g. fuses or power switches).
b
Caution.
Risk of material damage caused by incor-
rect repairs.
Using an incorrect spare part display can
cause damage to the electronics.
>
Before replacing, check that the correct
spare part display is available.
>
ONLY fit the correct spare part display.
i
Comply with the assembly and installation
instructions provided with the spare parts.
14.6.1 Replacing either the display or the PCB
>
Replace the PCB or display according to the assembly
and installation instructions supplied.
If you are replacing only one of the two components (PCB
or display), the parametrisation functions automatically. By
switching on the boiler, the new component takes over the
previously set parameters from the unreplaced component.
14.6.2 Replacing the PCB and the display at the
same time
Setting the appliance type
>
Set the correct value for the appliance type in accord-
ance with
¬ table 14.1
for diagnostic code D.093.
After confirmation, the display restarts itself automatically.
ecoTEC
Device specific
number (DSN)
22 (VU GB 226/5-3)
16
26 (VUW GB 266/5-3)
16
14.1
Device specific numbers for the appliance types
The electronics are now set to the appliance type and the
parameters of all adjustable diagnosis codes are set to
default settings.
>
Make the system-specific settings (
¬ section 11
).
