FLAME FAILURE FUNCTIONAL CHECK 3
PILOT WILL NOT STAY LIT OR FIRE GOES OUT IN USE
Ensure there is no debris around the pilot assembly, (e.g. coal, soot
etc.) which could short the spark, clear the area.
Light the pilot and keep the control knob pushed in at least 10
seconds before letting go.
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, clear the area.
From Ignition Fault Finding |
| Consult the Users Instructions, | ||
Chart Part 1. |
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21
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| YES | With the fire |
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With the pilot | Will the pilot stay |
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running on full, is |
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running, is the gas |
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| the gas at the |
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pressure stated on | NO |
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| pressure stated on |
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Problem is with the |
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the databadge? |
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| pipework or fittings |
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| the databadge? |
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| which lead to the |
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| YES |
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| fire. Correct and |
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| YES |
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| Run for no more |
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| than 60 seconds, |
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| turn off, time | YES | |
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| interval until mag | ||
Is the pilot flame of |
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| Is thermocouple | NO | |||||||
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the correct length? |
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| connection good in |
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| unit shuts with a |
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See diagram 1 on |
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| click. Is this greater |
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| back of valve? |
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page | 19. |
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| than 7 seconds? |
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| YES |
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| NO |
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| Replace the |
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| Tighten the |
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NO |
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| connection and |
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| thermocouple. |
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| Run for 60 seconds, |
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Operate the valve to light the pilot, does the valve ‘click’?
YES
Is the pilot burner horizontal? See diagram 1 on page 20.
YES
Has ignition lead become detached or is connection poor?
NO
Remove the electrode lead
from electrode with insulated YES pliers. Hold the tip 4mm from
the pilot pipework, is there a spark when the valve ‘clicks’?
NO
NO
NO
YES
Is the valve being operated | YES |
properly? |
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Reset the electrode gap, retry. |
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Correct and retry. |
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Check the defective or |
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damaged control knob spindle |
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or cam operation. Check for |
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correct location of piezo |
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components. Correct and |
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retry. |
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| YES |
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Change the pilot |
| Will pilot stay alight? | turn off, time | |||||
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unit. |
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| interval until mag | |
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| unit shuts with a | ||||
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| NO | click. Is this greater | ||
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| Change mag unit. |
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| than 7 seconds? | ||
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YES
SYSTEM OK
Is the electrode wire detached from the piezo in the valve?
NO
Replace the combined lead,
retry.
Replace the pilot unit.
YES
Remove the electrode lead from the piezo. Operate the valve. Does a spark jump from the piezo to the valve body?
YES
Replace the electrode lead
and retry.