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7-82
62-11039
Alarm
NO.
Steps
ALARM / CAUSE
CORRECTIVE ACTION
P164 CHECK UL2 CIRCUIT
•
TRIGGER–ON: Normal Amps for the UL2 (Rear) Unloader Circuit is 0.75 to 2.0 Amps. The circuit tests
outside this range.
•
UNIT CONTROL: Engine and standby operation: Pretrip will fail and display “PRETRIP FAIL AND
•
UNIT CONTROL: Engine and standby operation: Pretrip will fail and display “PRETRIP FAIL AND
COMPLETED”.
•
RESET CONDITION: Auto Reset if pre--trip mode is started again, 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, clear the
alarm(s). (See Note 1) Operate the unit through the appropriate modes to see if any active alarm occurs. Continue
with the steps below as necessary.
1.
Check For Bad F4 And F6 Alarm
a. Check for Alarm 72
Pull fuse and test. Replace if required.
2.
Check UL2
a. Check amp draw of coil.
Use Component Test Mode (Section 5.2.5.2.2) to test.
Refer to Section 2.14 for amp values.
View current draw in Data List.
b. Check resistance of UL1 coil
Refer to Section 2.14
3.
Check UL2 And Circuit
a. Inspect UL1 and wiring
No damage or corrosion
Connector fits together tightly, no moisture inside
b. Check operation of UL1 FET (23)
Energize circuit (see Note 2) LED must be ON
c. Check voltage to front unloader
Must be 11 VDC or higher across the 2 wires
4.
Check UL2 Circuit Wiring
a. Inspect harness & control box
connector pins & terminals (See
wiring schematic)
No physical damage to harness.
No damaged or corroded pins
P166 C2 CHK SUPPLY AIR SENSOR
•
TRIGGER–ON: Supply Air Sensor is not within the range of --53
°
F to +158
°
F (--47
°
C to +70
°
C)
•
UNIT CONTROL: Engine and standby operation: pre--trip will fail and display “PRE--TRIP FAIL AND
UNIT CONTROL: Engine and standby operation: pre trip will fail and display PRE TRIP FAIL AND
COMPLETED”.
•
RESET CONDITION: Auto Reset if pre--trip mode is started again, 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, clear the
alarm(s). (See Note 1) Operate the unit through the appropriate modes to see if any active alarm occurs. Continue
with the steps below as necessary.
1.
Check Supply Air Sensor
a. Inspect Return Air Sensor & connector No physical damage to harness.
No moisture, damaged or corroded pins
1MP Plug is connected tightly to microprocessor. No wires
are pushed back through plug.
b. Check Return Air Sensor resistance
(See Note 4)
10,000 Ohms @ 77
°
F (25
°
C) [See manual for complete
table of temperatures and resistance values.]
2.
Check Supply Air Sensor Wiring
a. Inspect harness & control box
connector pins & terminals (See
wiring schematic)
No physical damage to harness.
No damaged or corroded pins
3.
Check Remote Sensor Connector (2 Compartment Unit Only)
a.Locate and inspect remote sensor
connector
Cap is in place.
No physical damage.
No moisture or corrosion.
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 ...