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.
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.
Light the pilot and keep the control knob pushed in at least 10
seconds before letting go.
| NO |
| YES | With the fire | |||
With the pilot | Will the pilot stay | ||||||
running on full, is | |||||||
|
| lit? |
|
| |||
running, is the gas |
|
|
|
| |||
|
|
|
| the gas at the | |||
|
|
|
|
| |||
pressure stated on NO |
|
|
| ||||
| NO pressure stated on | ||||||
Problem is with the | |||||||
From Ignition Fault Finding
Chart Part 1.
Operate the valve to light the NO pilot, does the valve ‘click’? 
YES
Consult the Users Instructions,
retry.
Is the valve being operated
properly?
YES
21
the databadge? |
|
| pipework or fittings |
| the databadge? |
| |||||
|
|
|
| ||||||||
|
|
|
| which lead to the |
|
|
|
| |||
|
|
|
| YES |
|
|
| ||||
|
|
|
| fire. Correct and |
|
|
| ||||
|
|
|
|
|
|
|
| ||||
| YES |
|
| retry. | Run for no more |
| |||||
|
|
| than 60 seconds, |
| |||||||
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
| turn off, time | YES | ||
|
|
|
|
|
|
|
| ||||
Is the pilot flame of |
|
|
|
|
|
| interval until mag | ||||
|
| Is thermocouple | NO | ||||||||
the correct length? |
|
|
| ||||||||
|
| connection good in |
|
| unit shuts with a |
| |||||
See diagram 1 on |
|
|
|
|
| ||||||
|
|
|
|
| |||||||
|
| back of valve? |
|
| click. Is this greater |
| |||||
page 19. |
|
|
|
|
| ||||||
|
|
|
|
|
| than 7 seconds? |
| ||||
|
|
|
|
|
|
|
|
| |||
|
|
|
| YES |
|
|
|
|
|
| |
|
| NO |
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Replace the |
|
| Tighten the |
| |||
NO |
|
|
|
|
| connection and |
| ||||
|
|
| thermocouple. |
|
|
| |||||
|
|
|
|
|
| retry. |
| ||||
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
YES
Is the pilot burner horizontal?
See diagram 1 Servicing
Requirements.
YES
Has ignition lead become detached or is connection poor?
NO
Remove the electrode lead from electrode with insulated pliers. Hold the tip 4mm from the pilot pipework, is there a spark when the valve ‘clicks’?
NO
NO
YES
Reset the electrode gap, retry.
Correct and retry.
Check the defective or
damaged control knob spindle or cam operation. Check for correct location of piezo components. Correct and retry.
|
|
|
|
|
| YES | Run for 60 seconds, |
| |||
| Change the pilot |
| Will pilot stay alight? |
| |||||||
|
|
|
|
| turn off, time |
| |||||
| unit. |
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
| |||
|
|
|
| NO | interval until mag |
| |||||
|
|
|
|
|
| ||||||
|
|
|
|
|
| ||||||
|
|
|
|
| unit shuts with a |
| |||||
|
|
|
|
| NO |
| |||||
|
|
|
|
| click. Is this greater |
| |||||
|
|
| Change mag unit. |
|
|
|
| ||||
|
|
|
|
|
| than 7 seconds? |
| ||||
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 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.
