Operation - Worcester ZWBR 7-30 R 30 HE PLUS COMBI Service Booklet

2

Operation

Instructions on the use of the text display module are
given in the operating and installation instructions for
the boiler.
Fig. 2 Controls
a Display
b "Up"/"More" button
c "Down"/"Less" button
d "Back" button
e "Next" button
f "Delete" button
2.1 Initialisation
When the appliance is switched on it performs a self-
test which takes about 5 seconds. While the self-test is
in progress, the text display shows Please wait... Ini-
tialising and the two-digit display shows the following
sequence of codes which appear for varying lengths of
time:
1)
( P0 ,) P2, P3, P4, P6
On completion of the test sequence the appliance is
ready for operation.
2.2 Standard display
The text display shows the time, the CH flow tempera-
ture and the room temperature of TR2 location (if fitted).
In addition, the 2-digit display also shows the current
CH flow temperature in Heating mode and Hot Water
mode (display range 00˚C to 99˚C).
1) only for PCBs produced after 08/2004
7 181 465 347 (05.01)
Supplied By www.heating spares.co Tel. 0161 620 6677
2.3 Displaying service functions
B Press any button to activate the main menu.
B Press
or button until the arrow cursor is
pointing to Settings.
B Press the
button.
B Press
or button until the arrow cursor is
pointing to Service.
B Press the
button.
B Press
button to select Display service
param.
Service function 0.0 Last fault is displayed.
B Press
or button to cycle through the
current settings.
B Press
button to exit the menu.
Operation
5