5
Trouble-shooting
15
Blue Seal Evolution Series GT45 / GT46 / GT60
©
Moffat Ltd, January 2007
Revision 1/
ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY
QUALIFIED PERSONS ONLY.
WARNING:
Fault
Possible Cause
Remedy
Piezo ignitor not sparking
Short in high tension lead.
(Refer fault diagnosis 5.2.2)
Piezo faulty.
(Refer fault diagnosis 5.2.2)
Replace lead.
(Refer service section 6.2.14)
Replace piezo.
(Refer service section 6.3.12)
Pilot won’t light
No gas supply
Gas pressure too low.
Knob on gas control won’t go
fully in.
Flame failure valve pilot button
wont go fully in. (GT45 and
GT60)
Blocked pilot spud.
Ensure gas is connected and on
and bottles not empty.
Check gas supply pressure.
(Refer specifications section)
Remove obstruction. Correct
control / wrapper mounting.
Replace gas control.
(Refer service section
6.3.10/6.2.11)
Replace flame failure valve.
(Refer to section 6.2.15)
Clean or replace pilot spud.
(Refer service section 6.2.3)
Pilot goes out when knob released Releasing knob before the
thermocouple heated.
Pilot flame too small.
(Refer fault:Pilot Flame small)
Thermocouple faulty.
(Refer fault diagnosis 5.2.1)
Over-temperature thermostat
faulty.
(Refer fault diagnosis 5.2.1)
Gas control valve faulty
Flame failure valve faulty
(GT45 and GT60 only)
Hold control in for longer (10 s),
see if pilot will stay lit.
Correct fault.
Replace thermocouple.
(Refer service section 6.2.1)
Replace over-temperature
thermostat.
(Refer service section 6.2.9)
Replace gas control magnet
Replace flame failure magnet
Pilot flame small
Gas pressure too low.
Pilot adjustment screw out of
adjustment.
Pilot injector restricted.
Check gas supply pressure.
(Refer specifications section)
Adjust pilot adjustment screw.
(Refer service section 6.3.1)
Clean pilot injector.
(Refer service section 6.2.3)
5.1
Trouble shooting chart