14
IGNITION FUNCTIONAL CHECK 1
NO
See NO SPARK chart.
NO
Consult the User's section
in this manual and retry.
NO
Check isolation tap
and gas meter and retry.
NO
Correct and retry.
NO
Ther is a blockage in the system.
Check the inlet test point, the mag valve seating,
and blow out any dirt from the tubes.
YES
Purge the gas supply and retry.
YES
Has the system
got any air in it?
YES
Is the gas pressure correct?
NO
Is the gas supply
turned on to the appliance?
YES
Ensure the gap between electrode and pilot burner
is as Figure 9. If still not working
replace ignition lead and then peizo.
Yes
Will the burner light
with a match?
NO
Is the control being
operated correctly?
YES
SYSTEM OK
YES
Does the burner light?
Operate the valve.
Is there a spark?
BURNER WILL NOT LIGHT
Ensure there is no debris around the spark ignitor, e.g. coal, soot, etc.
which could short the spark, clean the area.
IGNITION FUNCTIONAL CHECK 2
NO
Consult the User's section
in this manual and retry.
YES
Check for damaged or defective control
knob spindle or cam operation. Check for correct
location of peizo components. Correct and retry.
NO
Is the valve being
operated correctly?
NO
Reset the electrode
gap and retry.
NO
Replace the combined tap and peizo.
YES
Replace the ODS pilot.
NO
Remove the lead from electrode. Using insulated pliers
hold the tip 3.5mm from the pipework.
Is there a spark when the valve clicks?
YES
Correct and retry.
YES
Has ignition lead become
detatched or has
a poor connection?
YES
Is the gap between
electrode and tpilot burner
as shown in Figure 9?
Operate the valve to
light the pilot.
Does the valve click?
NO SPARK
Ensure there is no debris around the spark electrode, e.g. coal, soot,
etc. which could short the spark, clean the area.
V.11.07
