IDEAL Concord CXi 110 Installation & Servicing Manual page 35

52 FAULT FINDING FLOW CHART
Boiler will not light
NO
Is 230V ± 10%
available at
appliance ?
YES
NO
Do any external
controls call for
heat ?
YES
NO
Check boiler
programme timer and
status, as described
in Frame 30.
Does programme
timer require heat ?
YES
Observe the display. Take actions as
follows, depending upon the display:
STANDBY Press [O/1] button
Press O/H reset
OVERHEAT
button.
FAULT
Press [Copy]
BOILER
Check wiring.
SENSOR
Press [Copy]
FAULT
Press
BURNER
LOCK OUT [Copy]
Check wiring.
GAS VALVE
Press [Copy]
FAULT
OUTSIDE
Check wiring.
SENSOR
Press [Copy]
FAULT
Check pump
PUMP FAULT connections.
Press [Copy]
Concord CXi -
Installation
FAULT FINDING
Carry out electrical
checks.
Check all fuses.
Reset external
controls as
appropriate
Reset timer or
status as
appropriate
Check system.
Press [Copy]
Check system.
Press [Copy]
Check gas.
Is there a
Press [Copy]
spark ?
YES
Check gas Replace faulty
pressure. solenoid.
Press [Copy] Press [Copy]
Change outside
sensor.
Press [Copy]
Check water
flow.
Press [Copy]
Replace o/h stat. Refer to
Press [Copy] screens
Replace sensor Refer to
Press [Copy] screens
Check HT leads
Check wiring to
and electrode
positions
Press [Copy]
Check
detection
probe.
Press
[Copy]
Check
gas
valve
wiring.
Press
[Copy]
Change pump.
Press [Copy]
Replace
generator.
generator.
Press [Copy]
Replace
detection
Refer to
screens
probe
Change
gas valve
or
Refer to
solenoid.
screens
Press
[Copy]
Refer to
screens
R
E
F
E
R
T
O
I
D
E
A
L
B
O
I
L
E
R
S
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