3
CONTENTS
1
INTRODUCTION ..................................................................................................4
1.1 Electronics..................................................................................................4
1.2 Product Specification..................................................................................4
1.2.1
Compressors......................................................................................4
1.2.2
Compressor Specification ..................................................................4
1.3 Condenser Layout ......................................................................................5
2
ELECTRONICS ....................................................................................................5
2.1 Control Module ...........................................................................................5
2.2 Light Operation...........................................................................................5
2.3 Beeper........................................................................................................5
2.4 Temperature Sensors.................................................................................5
2.5 Thermistor Sensors Resistance Table........................................................6
2.6 FC Fan .......................................................................................................6
2.7 Defrost Heater ............................................................................................6
2.8 Defrost Cycle..............................................................................................7
2.9 PC Heater...................................................................................................7
2.10 Temperature Controller ..............................................................................7
2.11 Fault Alarm .................................................................................................7
2.12 Compressor Starting...................................................................................7
3
FAULT CODES ....................................................................................................8
3.1 Fault Code Table ........................................................................................8
3.2 To Disable a Fault Alarm ............................................................................9
3.3 To Manually Force a Defrost ......................................................................9
4
SERVICE PROCEDURES ..................................................................................10
4.1 Control Module .........................................................................................10
4.2 Compressor Overload ..............................................................................10
4.3 FC & PC Sensors .....................................................................................10
4.3.1
To Replace PC Sensor ....................................................................10
4.3.2
To Replace FC Sensor.....................................................................10
4.4 Variable Resistor ......................................................................................11
4.4.1
To Replace Variable Resistor ..........................................................11
4.5 FC Defrost Heater ....................................................................................11
5
Wiring Diagram .................................................................................................12
6
FAULT FINDING.................................................................................................13
6.1 Compressor Won’t Start ...........................................................................13
6.2 Compressor Starts, Runs And Then Stops...............................................13
6.3 Compressor Humming..............................................................................13
6.4 PC Too Cold.............................................................................................13
6.5 PC Warm..................................................................................................13
6.6 FC Too Cold .............................................................................................13
6.7 FC Warm ..................................................................................................14
6.8 Alarm Sounds When Door Is Opened ......................................................14
6.9 Light Not Functioning................................................................................14
