SERVICING AND SPARES
6 720 815 725 (2015/05)
39
6.1.2
COMPONENT ACCESS
Removing outer case
1. Remove bottom panel by pulling it forward and off.
2. Undo but do not remove the two screws (A) securing boiler casing at
the bottom of the appliance.
3. Pull upwards to release the clip (B) on top of the boiler.
4. Pull case forward and remove.
Fig. 61 Removing outer case
2. Adjusting boiler control to service position
1. Slide down the white plastic clip securing the control panel.
2. Pull the control panel forward until it comes to rest in service
position.
Fig. 62 Controls to service position
6.1.3
FAN PRESSURE TEST
SET THE BOILER TO MAXIMUM
Fig. 63 Control panel
[A]
ON/OFF button
[B]
Cover or optional plug-in controller
[C]
Display
[D]
System pressure gauge
[E]
Reset button
[F]
ECO button
[G]
Holiday button
[H]
DHW temperature control
[I]
Central heating control
[J]
Performance test button
[K]
Service button
[L]
Burner indicator (green)
[M]
ON/OFF and fault indicator (blue)
A
B
4.
6720647361-27.5W
o
2.
3.
1.
This test is to determine if the heat cell requires cleaning/
attention
▶ When running in the Performance test mode, the
boiler will operate only the Central Heating circuit.
▶ The heating output can be limited to any level
between minimum and maximum rated heat output
to suit a specific requirement.
Even when the heat output is limited, full heat output
is still available for domestic hot water.
6 720 815 725-08.1O
2.
1.
1
2
3
4
5
6
max
2
3
1
0
4
bar
1
reset
eco
1
2
3
4
e
6
max
min
A
J
B
K
C
L
D
M
E
F
G
H
I
6720647361-23.2Wo
