Fisher & Paykel E450 - Table of Contents

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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 .................................................................................................................. 4
2 ELECTRONICS ..................................................................................................................... 5
2.1 Control Module ....................................................................................................................... 5
2.2 Light Operation ....................................................................................................................... 5
2.3 Temperature Controller .......................................................................................................... 5
2.4 Beeper/Alarm ......................................................................................................................... 5
2.5 Temperature Sensors ............................................................................................................. 5
2.6 Thermistor Sensor Resistance Table ..................................................................................... 6
2.7 Defrost Element ..................................................................................................................... 6
2.8 Thermal Fuses ....................................................................................................................... 6
2.9 Defrost Cycle .......................................................................................................................... 6
2.10 PC Fan ................................................................................................................................... 7
2.11 Fault Alarm ............................................................................................................................. 7
2.12 Compressor Starting .............................................................................................................. 7
3 FAULT CODES ...................................................................................................................... 7
3.1 Fault Code Table .................................................................................................................... 7
3.2 To Disable 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 PC and Defrost Sensor ........................................................................................................ 10
4.3.1 Removal Of The Fan Cover ............................................................................................. 10
4.3.2 To Replace PC Sensor .................................................................................................... 11
4.3.3 To Replace Defrost Sensor .............................................................................................. 11
4.3.3.1 To Remove Evaporator Duct Cover ........................................................................ 12
4.4 Variable Resistor .................................................................................................................. 12
4.5 Defrost Element ................................................................................................................... 12
4.6 Fan Motor ............................................................................................................................. 12
5 WIRING DIAGRAM .............................................................................................................. 13
6 FAULT FINDING .................................................................................................................. 14
6.1 Compressor Won’t Start. ...................................................................................................... 14
6.2 Compressor Starts, Runs And Then Stops. .......................................................................... 14
6.3 Compressor Humming ......................................................................................................... 14
6.4 PC Too Cold......................................................................................................................... 14
6.5 PC Too Warm ...................................................................................................................... 14