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62-11039
7-65
Alarm
NO.
Steps
ALARM / CAUSE
CORRECTIVE ACTION
137 C2 CHECK RETURN AIR SENSOR (2RAT)
•
TRIGGER–ON: Return Air Sensor 2 is not within the range of --53
°
F to +158
°
F (--47
°
C to +70
°
C)
•
UNIT CONTROL: Engine and standby: If setpoint is in the perishable range, compartment 2 will shut
UNIT CONTROL: Engine and standby: If setpoint is in the perishable range, compartment 2 will shut
down. If setpoint is in the frozen range, compartment 2 will run in reduced capacity cool.
•
RESET CONDITION: Auto Reset when sensor is in range or, alarm may be manually reset via keypad or
by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active alarm
should clear itself (see reset condition above). Operate the unit through the appropriate modes to see if any active
alarm occurs. Continue with the steps below as necessary.
1.
Check 2RAT Sensor
a. Inspect Return Air Sensor & connector No damage to sensor
No damage, moisture, or corrosion in connector
b. Check Return Air Sensor resistance
(See Note 4)
(Refer to Table 8-8 for complete resistance chart)
10,000 Ohms @ 77
°
F (25
°
C)
2.
Check 2RAT Wiring
a. Inspect harness & control box
connector pins & terminals (See
wiring schematic)
No physical damage to harness.
No damaged or corroded pins
138 C3 CHECK RETURN AIR SENSOR (3RAT)
•
TRIGGER–ON: Return Air Sensor 3 is not within the range of --53
°
F to +158
°
F (--47
°
C to +70
°
C)
•
UNIT CONTROL: Engine and standby: If setpoint is in the perishable range, compartment 3 will shut
UNIT CONTROL: Engine and standby: If setpoint is in the perishable range, compartment 3 will shut
down. If setpoint is in the frozen range, compartment 3 will run in reduced capacity cool.
•
RESET CONDITION: Auto Reset when sensor is in range or, alarm may be manually reset via keypad or
by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active alarm
should clear itself (see reset condition above). Operate the unit through the appropriate modes to see if any active
alarm occurs. Continue with the steps below as necessary.
1.
Check 3RAT Sensor
a. Inspect Return Air Sensor & connector No damage to sensor
No damage, moisture, or corrosion in connector
b. Check Return Air Sensor resistance
(See Note 4)
(Refer to Table 8-8 for complete resistance chart)
10,000 Ohms @ 77
°
F (25
°
C)
2.
Check 3RAT Wiring
a. Inspect harness & control box
connector pins & terminals (See
wiring schematic)
No physical damage to harness.
No damaged or corroded pins
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 ...