129
Remote Evaporator System Diagnosis
Condition
Possible Cause
Remedy
Load temperature too high
Refrigerant shortage
Repair leak and recharge
Setpoint too high
Adjust setpoint
Expansion valve plugged
Clean or replace
Partial obstruction in low side of
refrigeration system
Locate obstruction and repair
Iced or dirty evaporator coil
Defrost or clean evaporator coil
Expansion valve open too much
Replace or adjust valve
Poor fitting trailer door
Repair or replace doors
Liquid line solenoid partially closed
or defective
Repair or replace
Evaporator fan not operating
Check and correct evaporator fan
Evaporator fan motor does not
run
Fuse F12 blown
Check for short circuit in unit wiring
and replace fuse
Open in FM circuit
Locate open and repair
Defective fan relay
Replace fan relay
Defective fan motor
Replace fan motor
Summary of Contents for Spectrum DE 30-2
Page 4: ...4...
Page 12: ...Safety Precautions 12...
Page 16: ...Specifications 16...
Page 31: ...Unit Description 31 1 Access Panels 2 Defrost Dampers Figure 12 Back View of Unit 1 2 AGA215...
Page 42: ...Operating Instructions 42...
Page 48: ...Electrical Maintenance 48...
Page 106: ...Structural Maintenance 106...
Page 110: ...Mechanical Diagnosis 110...
Page 114: ...Remote Evaporator Specifications 114...
Page 116: ...Remote Evaporator Maintenance Inspection Schedule 116...
Page 122: ...Remote Evaporator Electrical Maintenance 122...
Page 126: ...Remote Evaporator Refrigeration Service Operations 126...
Page 128: ...Remote Evaporator Structural Maintenance 128...
Page 130: ...Remote Evaporator System Diagnosis 130...
Page 134: ...Wiring and Schematic Diagrams Index 134...
Page 135: ...135 Schematic Diagram Page 1 of 2...
Page 136: ...136 Schematic Diagram Page 2 of 2...
Page 137: ...137 Wiring Diagram Page 1 of 4...
Page 138: ...138 Wiring Diagram Page 2 of 4...
Page 139: ...139 Wiring Diagram Page 3 of 4...
Page 140: ...140 Wiring Diagram Page 4 of 4...