IGNITION FUNCTIONAL CHECK 1 | IGNITION FUNCTIONAL CHECK 2 |
PILOT WILL NOT LIGHT
Ensure there is no debris around the pilot assembly, (e.g. soot, etc.) which could short the spark, clean the area. Check for fluff in the pilot aeration hole. See diagram 13, arrow A in replacing parts section
NO SPARK
Ensure there is no debris around the pilot assembly,
(e.g. coal, soot etc.) which could short the spark, clean the area.
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Operate the valve. | Does the pilot light? | ||||
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| Is there a spark? |
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No
Yes
Operate the valve to
light the pilot, does the
valve 'click'?
Consult the users instructions, retry.
No
No | Is the valve being |
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Consult User |
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Instructions and retry. |
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Ensure gap between |
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electrode and thermocouple |
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is as diagram 13 in replacing |
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Is the control being operated correctly?
Yes
Will the pilot light
with a match?
Yes
Is the gap between
electrode and thermocouple
as in diagram 13 in
replacing parts section?
No
Reset the electrode gap, retry.
24
parts section and retry. If the |
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gap is OK then first change |
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the ignition lead and retry, if |
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still no good then change the |
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piezo |
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Check isolation tap and |
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gas meter, retry. |
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Correct and |
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retry. |
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Purge the gas pipes and retry. |
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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
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| Check for defective or | |||
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Yes | from electrode with insulated |
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pliers. Hold the tip 3.5mm from the |
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| correct location of piezo | ||||||
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| pilot pipework, is there a spark |
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| when the valve ‘clicks’? |
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| Remove the electrode lead from | ||
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| detachable from the piezo |
| Yes |
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| the piezo. Operate the valve. | |||
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| in the valve? |
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| piezo to the valve body? |
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| Replace the combined lead |
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Yes
There is a blockage in the system, check the inlet test point,
the mag seating valve and gas filter.
SEE NO SPARK CHART |
| SYSTEM OK |
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| and piezo, retry. |
| Yes |
| No | |
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Replace the ODS unit. |
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| Replace the electrode |
| Replace the piezon | |
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| lead and retry. |
| and retry | ||
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