9-6
62-11039
INDICATION/
TROUBLE
POSSIBLE CAUSES
REFERENCE
SECTION
9.4 REFRIGERATION
9.4.1 Unit Will Not Cool
Compressor contactor defective
check
Compressor malfunction
Compressor defective
8.14
A defrost cycle did not terminate
8.24
Refrigeration system
Abnormal pressure
9.4.7
Refrigeration system
Liquid line solenoid valve (LSV2/3) malfunction
9.4.12
9.4.2 Unit Runs But Has Insufficient Cooling
Compressor
Compressor valves defective
8.14
Compressor
Unloader malfunction
8.15
Abnormal pressure
9.4.7
Unloader malfunction
8.15
Refrigeration system
Expansion valve malfunction
9.4.11
Refrigeration system
No or restricted evaporator airflow
9.4.10
Suction Modulation Valve malfunction
8.23
9.4.3 Unit Operates Long Or Continuously In Cooling
Trailer
Hot Load
Allow time to
pull down
Trailer
Defective box insulation or air leak
Correct
Refrigeration system
Abnormal pressure
9.4.7
Refrigeration system
Temperature controller malfunction
9.4.9
Compressor
Defective
8.14
9.4.4 Unit Will Not Heat Or Has Insufficient Heating
Evaporator fan internal motor protector open
8.7.3
Heat relay defective
Check
Heater(s) defective
8.7
Heater contactor or coil defective
Replace
Unit will not heat or has insuffi-
Evaporator fan motor(s) defective or rotating backwards
8.7.3
Unit will not heat or has insuffi-
cient heat
Evaporator fan motor contactor defective
Replace
Controller malfunction
9.4.9
Defective wiring
Replace
Loose terminal connections
Tighten
Low voltage
9.3
Summary of Contents for VECTOR 1800 MT
Page 1: ......
Page 2: ...OPERATION SERVICE MANUAL for VECTOR 1800 MT Trailer Multi Temp Refrigeration Units ...
Page 19: ...1 5 62 11039 1 3 SAFETY DECALS ...
Page 20: ...1 6 62 11039 62 03958 00 Heat Warning 62 03957 01 High Voltage 62 60280 00 Standby Safety ...
Page 21: ...1 7 62 11039 ...
Page 303: ...10 1 62 11039 ...
Page 310: ...10 8 62 11039 BASED ON ENGINEERING SCHEMATIC 62 60926 REV G NEXT SHT ...
Page 311: ...10 9 62 11039 FROM PREVIOUS SHT ...