Unigas RG91, Руководство по установке, использованию и обслуживанию, Страница: 23 / 30

PART III: MAINTENANCE
23
TROUBLESHOOTING
WIRING DIAGRAMS
Refer to the attached wiring diagrams.
WARNING
1 - Electrical supply 230V 50Hz 1 a.c./400V 50Hz 3N a.c.
2 - Do not reverse phase with neutral
3 - Ensure burner is properly earthed
THE BURNE
R
DOESN’T START
THE BURNE
R
RE
PEATS PRE- PURGE
NOIS
Y FUEL P
U
M
P
THE BURNE
R
DOESN’T START
AND STOPS
THE BURNE
R
STARTS AND
STOPS
THE BURNE
R
D
O
E
S
N’
T
SW
IT
CH
TO
HIG
H
FL
AM
E
THE BURNE
R
ST
OPS
DURI
N
G
OPERATION
T
H
E BURNER
ST
OPS
AND REPEATS THE CYCLE DU
RING OPE-
RAT
ION
MAIN SWITCH OPEN

LINE FUSE INTERVENTION

MAX. PRESSURE SWITCH FAULT
 
FAN THERMAL CUTOUT INTERVENTION

AUXILIARY RELAIS FUSES INTERVENTION

CONTROL BOX FAULT
    
SERVOCONTROL FAULT

SMOKEY FLAME
 
IGNITION TRANSFORMER FAULT

IGNITION ELECTRODE DIRTY OR WRONG
POSITIONED

DIRTY NOZZLE
 
FUEL SOLENOID VALVE DEFECTIVE
 
PHOTORESISTOR DIRTY OR DEFECTIVE
 
HI-LO FLAME THERMOSTAT DEFECTIVE

WRONG POSITION OF SERVOCONTROL
CAMS

FUEL PRESSURE TOO LOW

DIRTY FUEL FILTERS
  