IGNITION FUNCTIONAL CHECK 1
PILOT WILL NOT LIGHT
Ensure there is no debris around the pilot assembly, e.g. coal, soot, etc which could short the spark, clean the area. Check for fluff in the pilot aeration hole. See diagram 7.
IGNITION FUNCTIONAL CHECK 2
NO SPARK
Ensure there is no debris around the pilot assembly, e.g. coal, soot, etc
which could short the spark, clean the area.
Consult users
19
NO
Operate the valve.
Is there a spark?
Consult users book
and retry
Ensure gap between the
electrode and thermocouple
is as Dia. 8 and retry. If gap is O.K then first change the ignition lead and retry.
Check isolation tap and gas meter, retry.
Correct and retry.
Purge the gas pipes
and retry
YES
NO
YES
NO
NO
YES
Does the pilot light?
NO
Is the control being operated correctly?
YES
Will the pilot light
with a match?
NO
Is the gas turned on to
the appliance?
YES
Is the gas pressure
correct?
YES
Has the system got
any air in it?
NO
YES
*
Operate the valve to
light the pilot, does the
valve ‘click’?
YES
Is the gap between electrode
and thermocouple
as in Dia 7?
YES
Has ignition lead become detached or is connection poor?
NO
Remove the electrode lead
from electrode with YES insulated pliers hold the tip
3.5mm from the pilot
pipework,is there a spark when the valve ‘clicks’?
NO
Is the electrode wire
detached from the piezo
valve?
NO
NO
YES
YES
instructions, retry
Is the valve being operated correctly?
Reset the pilot
burner
Correct and retry
Check for defective or damaged control knob spindle or cam operation. Check for the correct location of piezo components. Correct and retry.
Remove the electrode lead from the piezo. Operate the valve. Does a spark jump from the piezo to
FAULTFINDINGCHARTS | SERVICINGINSTRUCTIONS |
YES |
|
There is a blokage in the system, check the inlet test point, the mag
seating, valve and pilot filter
|
| SYSTEM O.K |
See “No Spark” |
| |
Chart * |
|
|
|
|
|
the valve body?
Replace the ODA unit |
| Replace the electrode |
| Replace the |
|
| lead and retry |
| control valve |
|
|
|
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