Blue Seal G50-8A, Installation & Operating Instructions Manual

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E. OPEN BURNERS
GAS
CONTROL - Servicing
To regrease gas control follow same procedure as in C for griddle gas
controls.
GAS
CONTROL - Replacement
To replace gas control follow same procedure as in C for griddle gas
controls.
THERMOCOUPLE
Should the open burner not remain alight when the control knob is released after
ignition, it is likely that the thermo-electric flame failure system has a fault.
However, always remember to check burner operation and ignition procedures as
found in OPERATING SECTION are being correctly followed before servicing.
If a fault does exist, the following should be checked and rectified where
necessary.
1.
Inspect thermocouple for foreign build up on tip. This could be in the form of
carbon or food deposits.
Clean off any deposits taking care not to scratch off aluminium coating on
thermocouple tip.
2.
Remove enamelled pot-stand/trivet and check thermocouple
connection to gas control.
Connection nut should be hand tight, then a quarter turn with 10 mm
spanner.
3.
Check thermocouple tip is in the flame zone of the burner; ie when the
burner is lit, the flame should impinge on the top 5 mm of the thermocouple
tip.
The thermocouple should not touch the burner.
If the thermocouple is not correctly positioned, check the thermocouple
nut is secure in mounting bracket.
If the thermocouple is to low, loosen securing nut, push thermocouple
fully up into bush on mounting bracket and retighten securing nut.
4.
If 1-3 are correct, but burner will still not remain alight, disconnect
thermocouple and using a DC millivolts multimeter. Test thermocouple
for thermocouple for millivolts output with burner alight. Thermocouple
should produce 20-30 millivolts.
Replace thermocouple if faulty.
5. If
thermocouple produces the correct voltage, remove the aluminium
nut off the rear of the gas control and remove electro-magnet. Inspect
and test operation on thermocouple. Replace if necessary.
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SERVICING INSTRUCTIONS