Glow-worm Chatsworth 4 - Manual (Page 19)

19 221907C
7 Fault Finding
6015
Diagram 7.1
Press control lever
down to ignition
position
Are sparks visible
at electrode
YES
YES
YES
YES
YES
YES
YES
NO
Check battery voltage
and if fitted correctly.
If voltage is less than
7.5V, replace.
Press control lever
to ignition position.
Are sparks visible?
Check that gas supply is available, free of obstructions and purged of air. Ensure that linkage operates spindle
on gas valve. Ensure electrode is not cracked, the spark gap is correct and the ignition lead is in good condition.
Disconnect black
wires from spark
generator.
Depress control
lever to ignition
position. Check
continuity of
micro-switch,
is there continuity?
Faulty ignition.
Replace microswitch 2
Does pilot and burner
ignite at low rate
Faulty gas
control valve.
Replace
Hold control lever in ignition position.
If after several seconds the milli voltage is not
greater than 6mV. Replace faulty thermocouple
Faulty microswitch 1
Replace
Hold control lever
in ignition position
for several seconds.
Move control lever
to position 1.
Do ignition sparks
stop?
Move control lever
to position 2.
Does rate increase?
Move control lever to
position 3.
Does rate increase?
Faulty gas control
valve. Replace
Faulty gas control
valve. Replace
Does fire remain
alight at low rate?
Sequence of
operation correct
Move control lever to
off position. Does fire
go out?
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
NO
Move control lever to
COKE position.
Does flame picture
change to blue from yellow?
(when fire is hot)
Check that aeration
plate on side of burner
is moving when control
lever moves from coal
to coke position.
If faulty Replace
Faulty off
Replace microswitch 1.
7.1 Fire Ignition
Refer to Fire Ignition Sequence of Operations, see diagram 7.1.
7.2 Safety Device
If the fire shuts down for no apparent reason the flue/chimney
and the air inlets into the room must be checked.
Any problems found must be put right, before the fire is used
again.
Also, check for dust and lint around the holes in the safety
device.
IN ALL cases the room must be ventilated before attempting to
relight the fire.
The safety device must not be bypassed or put out of action.