18
1
2
3
4
5
6
1
2
3
4
5
6
E
C
II
I
J
K
L
EGEND
:
A - On/Off Button
B - Domestic Hot Water Temperature Adjustment
C - Central Heating Temperature Adjustment
D - Reset Button/Flue Test analysis mode*
E - Comfort Mode Selector
F - Summer Mode LED (Green)
G - Ignition/Overheat Lockout LED (Red)
H - Central Heating (Winter Mode) LED (Green)
I - Digital Display (Fault Code/Water Temperature)
J - Time Clock
K- Central Heating System Pressure Gauge
2.10
C
ONTROL
P
ANEL
F
IG
. 2.22
FR020A
* Warning the flue analysis mode must only be selected by a
qualified service engineer.
DISPLAY
CAUSE
A
A0
01
1
No flame after safety time (7 seconds)
A
A0
03
3
The heating flow temperature exceeds
103
o
C during operation
A
A9
97
7
Problem with the electronic monitoring
A
A9
98
8
Problem with the electronic monitoring
A
A9
99
9
Problem with the electronic monitoring
E
E0
02
2
Insufficient water pressure
E
E0
04
4
Domestic hot water temperature probe in
open circuit
E
E0
05
5
Domestic hot water temperature probe
short circuited
E
E0
06
6
Heating flow temperature probe in open
circuit
E
E0
07
7
Heating flow temperature probe short
circuited
E
E0
08
8
Heating return temperature probe in open
circuit
E
E0
09
9
Heating return temperature probe short
circuited
E
E2
20
0
Flame detected with gas valve closed
E
E2
21
1
Error in the electrical connection (live and
neutral crossed)
E
E3
33
3
The air pressure switch is
closed before the ignition sequence
E
E3
34
4
The air pressure switch does not close
when the fan runs
E
E9
99
9
More than 5 RESETS of the boiler in 15
minutes.
The Control Panel has a 3 digit display, during normal
operation the display will show one of three things on the
two right hand digits;
During Stand-by (no demand for Central Heating or D.H.W.)
‘
on
’ will be shown on the display and no LEDs will light.
During a demand for Domestic Hot Water, the temperature of
the outgoing hot water is displayed in
o
C (e.g.
38
) and the
summer mode LED will light (
F - F
IG
. 2.22).
During a demand for Central Heating, the temperature of the
central heating flow will be displayed in
o
C (e.g.
65
) and the
central heating mode LED will light (
H - F
IG
. 2.22).
During the operation of the flue analysis mode* the
display will show ‘
sc
’.
Should a fault occur the display will show the fault code
and one of two letters, for a non-volatile shutdown the
letter ‘
A
’ will be shown followed by the two digit code for
the fault eg. ‘
A02
’ and the red LED (
G - F
IG
. 2.22) will
light, a non-volatile shutdown will require the reset button
(
D - F
IG
. 2.22) to be pushed before the boiler will attempt
to relight, should the boiler lockout again, the assistance
of an Authorised Service Engineer should be sought.
Should the boiler develop a fault that cannot be corrected
by resetting the boiler, the letter ‘
E
’
will be displayed
followed by a two digit code (e.g.
E33
) indicating a
volatile shutdown code, in the event of such a shutdown,
the boiler will automatically resume operation once the
cause behind it is resolved. Should it not the assistance
of an Authorised Service Engineer would be required.
A list of the fault codes can be found opposite.
2.11
D
IGITIAL
D
ISPLAY AND
F
AULT
C
ODES
