FULTON J Series, Installation, Operation And Maintenance Manual

Page: 49 / 72

JGASUK-IOMM-2015-2
Fulton Ltd
Page 43
MAINTENANCE - 4
Symptom and
identification symbol
Cause Remedy
No Start
1. No Power Check all fuses/circuit breakers
Check for correct wiring.
2. External Interlocks Check all external interlocks are made.
3. Air Pressure Switch Check that the switch is in ‘No Air’ position.
4. CPI switch If fitted, must be made.
5. Air Damper If fully closing damper fitted, check relevant micro
switch on damper.
6. Burner Motor fault Check overload.
Lockout
1. False flame detected Check for stray light (cell only). Faulty cell or
damaged flame probe.
Interruption of
start-up sequence
1. Air Damper Check fully open microswitch is made.
Lockout
1. Air Pressure Switch Check that switch is made.
P
2.
Note:
Any air pressure
failure after this time will
cause a lockout condition.
Lockout
3. Flame supervision Check for stray light (cell only).
Faulty cell or damaged flame probe.
Interruption of
start-up
sequence
1. Air Damper Check low fire microswitch is made.
Lockout
1. No ignition spark Check supply ignitor.
Check electrode and HT leads for damage.
1
2. No pilot flame Check gas supply.
Check electrode setting.
Check functionality of pilot gas valve(s).
Check pressure gas downstream of pilot valve(s).
3. Pilot lights then extinguishes
Note:
Any flame signal
failure after this stage will
cause a lockout condition
Check flame stability with ignition off.
Check air pressure at burner.
Check gas pressure is steady.
Check the flame is being sensed, i.e.
(i) Check sensor for damage.
(ii) Check sensor can view flame.
(iii) Check flame signal,
see data sht. LFL1 - 7451
4.12.3 TROUBLESHOOTING BURNER CONTROL UNIT-LFL 1 (SIEMENS)
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