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9-7
62-11039
INDICATION/
TROUBLE
POSSIBLE CAUSES
REFERENCE
SECTION
REFRIGERATION (Continued)
9.4.5 Unit Will Not Terminate Heating
Controller improperly set
Reset
Unit fails to stop heating
Controller malfunction
9.4.9
Unit fails to stop heating
Heater termination thermostat remains closed along with
the heat relay
Repair
9.4.6 Defrost Cycle Malfunction
Defrost air switch (DAS) out of calibration
8.25
Will
t i iti t d f
t
A DTT is above 40
_
F (4.4
_
C)
Cool Box Down
Will not initiate defrost
automatically
Defrost air switch (DAS) defective
8.24 & 8.25
automatically
Loose terminal connections
Tighten
Air sensing tubes defective or disconnected
Check
Microprocessor defective
Replace
Will not initiate defrost manually
Loose terminal connections
Tighten
Will not initiate defrost manually
DTT2 is above 40
_
F (4.4
_
C)
Cool Box Down
Unit has been running less than 15 seconds
Try again
Initiates but does not defrost
Heater contactor or coil defective
Replace
Initiates but does not defrost
Heater(s) burned out
8.7
Frequent defrost
Defrost air switch (DAS) out of adjustment
8.24 & 8.25
Frequent defrost
Wet load
Normal
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 ...