16
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 Section 2, retry.
| Operate the valve to light | No | Is the valve being | Yes |
| the pilot, does the valve |
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| operated correctly? | ||
| 'click'? |
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| Yes |
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| Is the pIlot burner | No |
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| horizontal? | Reset the pilot burner. |
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| See diagram 1 on page 17 |
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| Yes |
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| Has ignition lead | Yes |
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| become detached or is | Correct and retry. |
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| connection poor? |
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| Remove the electrode lead |
| Check for defective or |
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Yes |
| damaged control knob spindle |
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from electrode with insulated |
| or cam operation. Check for |
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| pliers. Hold the tip 4mm from the |
| correct location of piezo |
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| pilot pipework, is there a spark |
| components. Correct and retry. |
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| when the valve ‘clicks’? |
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No
FLAME FAILURE FUNCTIONAL CHECK
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, clean the area.
Light the pilot and keep the control knob pushed in | |||||
| at least 10 seconds before letting go. |
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With the pilot |
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| stay lit? |
| With the fire running | ||
running is the gas |
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| on full is the gas at | ||
pressure stated on the |
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No |
| No | the pressure stated | ||
databadge? |
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Problem is with the | on the databadge? | ||||
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| pipework or |
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| fittings which lead |
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| to the fire. Correct and | ||||
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| retry. |
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Yes |
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| Run for no more than | Yes | |
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| 60 seconds |
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| turn off, time interval |
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| until mag unit shuts |
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| with a click. Is this |
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Is the pilot flame of the |
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| Is thermocouple |
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| greater than 7 |
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| seconds? |
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correct length? See |
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| connection good |
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diagram 1 on page 15. |
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| in back of valve? |
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| Yes |
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| Tighten the |
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| connection and retry. |
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No |
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| Replace |
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| thermocouple. |
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Is the electrode wire
detached from the piezo
in the valve?
No
Replace the combined lead and piezo, retry.
Yes
Remove the electrode lead from the piezo. Operate the valve. Does a spark jump from the piezo to the valve body?
Yes | No |
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Change the pilot unit.
Will pilot
stay alight?
No
Change mag
unit.
Yes
No
Run for a maximum of 60 seconds, turn off, time interval until mag unit shuts with a click. Is this greater than 7
seconds?
Yes
Replace the electrode. | Replace the electrode | Replace the piezo | |
lead and retry. | and gas valve and retry. | ||
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SYSTEM OK
