Unigas IDEA LG280, Manual Of Installation - Use - Maintenance

Page: 44 / 89

C.I
.B. UNIGAS
-
M039132CD
44
TROUBLESHOOTING
l
= with any control box;
s
= with only LGB2../LMG2../LME11/LME2..
(*) In such cases, insert the circuit SIEMENS “RC466890660” ()See chapter “Electrical connections”)
CAUSE
TROUBLE
THE BURNER DOESN’TSTA
R
T
CONT
INUE WITH PRE-
P
URGE
DOESN’T START AND LO
CK-OUT
DOESN’T START AND RE
PEA
T
S
THE
CYCLE
S
T
ARTS AND
REP
EATS
THE CYCLE S
T
ARTS AND
LOCK-OUT
В
THE FLAME
MONI
TO
R
DE
VIC
E
DOESN’T
G
IV
E
CONS
ENT TO
START
DOESE
N’T
SWITCH
TO
HIGH FLAME DOESE
N’T
RETURN
IN
LO
W
F
L
A
M
E
HE
S
E
RVO
CONTROL
IS
LO
CK AND VIB
R
ATE
LO
CK-OUT DURING
O
PERA
T
IO
N
TURNS OF AND REPE
ATS
CY
CLE DU
RING
O
PERA
T
IO
N
MAIN SWITCH OPEN
z
LACK OF GAS
z z
MAXIMUM GAS PRESSURE SWITCH DEFECTIVE (IF
PROVIDED)
z z
THERMOSTATS/PRESSURE SWITCHES DEFECTIVE
z z z
OVERLOAD TRIPPED INTERVENTION
z
AUXILIARIES FUSE INTERRUPTED
z
CONTROL BOX FAULTY
z z z z z
DEFECTIVE SERVOCONTROL (IF PROVIDED)
z z z Œ
AIR PRESSURE SWITCH FAULT OR BAD SETTING
z z z z
MINIMUM GAS PRESSURE SWITCH DEFECTIVE OR GAS
FILTER DIRTY
z z z z z
IGNITION TRANSFORMER FAULT
z
IGNITION ELECTRODES BAD POSITION
z
DETECTION ELECTRODE BAD POSITION
z z
BUTTERFLY VALVE BAD SETTING
z z
DEFECTIVE GAS GOVERNOR
z z z z
GAS VALVE DEFECTIVE
z
BAD CONNECTION OR DEFECTIVE HIGH/LOW FLAME
THERMOSTAT OR PRESSURE SWITCH (IF PROVIDED)
Œ z z Œ
WRONG SETTING SERVO CONTROL CAM
l l l
UV PROBE DIRTY OR DEFECTIVE (IF PROVIDED)
l l l
PHASE-NEUTRAL INVERTED
s
PHASE-PHASE SUPPLY OR PRESENCE OF VOLTAGE ON
THE NEUTRAL CONDUCTOR(*)
s