Unigas IDEA Serie Manuel D'installation, D'utilisation Et D'entretien page 46

TROUBLESHOOTING
CAUSE
MAIN SWITCH OPEN
LACK OF GAS
MAXIMUM GAS PRESSURE SWITCH DEFECTIVE (IF
PROVIDED)
THERMOSTATS/PRESSURE SWITCHES DEFECTIVE
OVERLOAD TRIPPED INTERVENTION
AUXILIARIES FUSE INTERRUPTED
CONTROL BOX FAULTY
DEFECTIVE SERVOCONTROL (IF PROVIDED)
AIR PRESSURE SWITCH FAULT OR BAD SETTING
MINIMUM GAS PRESSURE SWITCH DEFECTIVE OR GAS
FILTER DIRTY
IGNITION TRANSFORMER FAULT
IGNITION ELECTRODES BAD POSITION
DETECTION ELECTRODE BAD POSITION
BUTTERFLY VALVE BAD SETTING
DEFECTIVE GAS GOVERNOR
GAS VALVE DEFECTIVE
BAD CONNECTION OR DEFECTIVE HIGH/LOW FLAME
THERMOSTAT OR PRESSURE SWITCH (IF PROVIDED)
WRONG SETTING SERVO CONTROL CAM
UV PROBE DIRTY OR DEFECTIVE (IF PROVIDED)
PHASE-NEUTRAL INVERTED
PHASE-PHASE SUPPLY OR PRESENCE OF VOLTAGE ON
THE NEUTRAL CONDUCTOR(*)
l = with any control box;
s = with only LGB2../LMG2../LME11/LME2..
(*) In such cases, insert the circuit SIEMENS "RC466890660" ()See chapter "Electrical connections")
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l
TROUBLE
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l l
l
s
s
WIRING DIAGRAMS
Wiring diagrams (see attached document)
LG/NG/NGX 280 Single stage - Eletric wiring diagrams - SE01-530
LG/NG/NGX 280 Double stage - Progressive - Eletric wiring diagrams - SE18-103
LG/NG/NGX 350-400 Eletric wiring diagrams - SE18-163, SE18-057
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l
l