12
5
Trouble-shooting
Revision 1/
© Moffat Ltd, January 2007
Blue Seal Evolution Series Gas Chargrills
ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY
QUALIFIED PERSONS ONLY.
WARNING:
Fault
Possible Cause
Remedy
Pilot won’t light
Gas pressure incorrect.
Pilot injector blocked / incorrect
size.
Piezo ignitor faulty.
(Refer fault diagnosis 5.1.1)
Check gas pressure and adjust if
necessary.
Check injectors and replace if
necessary.
Replace piezo ignitor.
(Refer service section 6.2.7)
Pilot drops out when knob
released
Releasing knob before
thermocouple is heated.
Faulty thermocouple.
(Refer fault diagnosis 5.1.2)
Pilot injector blocked / incorrect
size.
Gas valve magnet faulty.
(Refer fault diagnosis 5.1.2)
Hold control in for longer, see if
pilot will stay alight.
Replace thermocouple.
(Refer service section 6.2.1)
Check injectors and replace if
necessary.
Replace valve magnet.
(Refer service section 6.2.10)
Pilot goes out when main burners
come on
Incorrect gas pressure.
Faulty thermocouple.
(Refer fault diagnosis 5.1.2)
Faulty gas control valve.
Check supply / adjust pressure.
Replace thermocouple.
(Refer service section 6.2.1)
Replace gas control valve.
(Refer service section 6.2.9)
Main burners will not light
Wrong size or blocked injectors.
Faulty gas control valve.
Incorrect supply pressure.
Replace / clean injectors.
(Refer service section 6.2.6)
Replace gas control valve.
(Refer service section 6.2.9)
Check supply correct pressure.
Burner goes out while in use
Incorrect or fluctuating gas pres-
sure.
Small pilot flame—pilot injector
blocked or incorrect size.
Main injector blocked / incorrect
size.
Check gas pressure and adjust if
necessary.
Check injectors and replace if
necessary.
(Refer service section 6.2.2)
Check injectors and replace if
necessary.
(Refer service section 6.2.6)
Burner flame incorrect colour
(yellow)
Burner aeration incorrectly set.
Adjust burner aeration.
Gas control stiff to operate
Gas control requires regreasing.
Regrease gas control.
(Refer service section 6.3.1)
5.1 Trouble-shooting Chart
