Cobra cf4, Руководство по обслуживанию

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5
Fault Finding
8
Moffat Cobra Series - CF4 © Moffat Ltd, August 2012
Amendment 4
Fault Possible Cause Remedy
Pilot will not light. No gas supply.
Gas pressure too low.
Knob on gas control won’t go
fully in.
Flame failure valve pilot button
will not go fully in.
Blocked pilot injector.
Ensure gas is connected and on
and bottles are not empty.
Check gas supply pressure.
(Refer Specifications Section).
Remove obstruction. Correct
control / wrapper mounting.
Replace gas control valve.
(Refer Section 6.2.8 / 6.2.9).
Replace flame failure valve.
(Refer to Section 6.2.10).
Clean or replace pilot injector.
(Refer Section 6.2.3).
Pilot goes out when knob released. Releasing knob before the
thermocouple heated.
Pilot flame too small.
(Refer Fault: Pilot Flame too Small)
Thermocouple faulty.
(Refer Fault Diagnosis 5.2.1)
Over-temperature thermostat
tripped reset or faulty.
(Refer Fault Diagnosis 5.2.1)
Gas control valve faulty.
Flame failure valve faulty.
Hold control in for longer (10 secs),
see if pilot will stay lit.
Correct fault.
Replace thermocouple.
(Refer Section 6.2.2).
Replace over-temperature
thermostat.
(Refer Section 6.2.5).
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 Section 6.3.1).
Clean pilot injector.
(Refer Section 6.2.3).
Pilot goes out when main burner
comes 'On'.
Incorrect gas pressure.
Faulty gas control.
Check supply / adjust pressure.
(Refer Specifications Section).
Replace gas control valve.
(Refer Section 6.2.10 / 6.2.11).
5.1 Fault Finding Chart
WARNING:
A
LL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY
.
I
MPROPER INSTALLATION
,
ADJUSTMENT
,
ALTERATION
,
SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE
,
INJURY OR DEATH
.
R
EAD THE INSTALLATION
,
OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS
APPLIANCE
.