Carrier Vector 1800 - 1950 Error Code Quick Guide
This quick guide will provide you with information on error codes for Carrier Vector 1800-1950 refrigerated units. We will provide you with key error codes and troubleshooting recommendations so that you can quickly and efficiently resolve any equipment issues.
Model: Carrier
Series: Vector 1800-1950
|
Code
|
Description
|
|
A1
|
Low diesel fuel
|
|
A2
|
Low engine oil
|
|
A3
|
Low Coolant Level
|
|
A4
|
Low Coolant Level
|
|
A11
|
Low engine oil pressure
|
|
A12
|
High coolant temperature
|
|
A13
|
High Discharge Pressure
|
|
A14
|
Electrical Diagram
|
|
A15
|
Too much battery voltage
|
|
A16
|
Too little battery voltage
|
|
A17
|
High temp. discharge
|
|
A18
|
Low refrigerant pressure
|
|
A19
|
Shutdown - Low Fuel
|
|
A20
|
Compressor Signal Limit
|
|
A21
|
Signal reset by a specialist
|
|
A22
|
Weak suction overheating
|
|
A23
|
Network overload
|
|
A27
|
High suction pressure
|
|
A28
|
Check the refrigeration circuit
|
|
A30
|
Failure to operate for a minimum period of time
|
|
A31
|
Autostart failure
|
|
A34
|
Engine stop failure
|
|
A35
|
Check the starter circuit
|
|
A36
|
Check the coolant temperature
|
|
A37
|
Check low engine speed
|
|
A38
|
Check high engine speed
|
|
A39
|
Check engine speed
|
|
A40
|
Check glow plugs
|
|
A41
|
Engine stalled
|
|
A51
|
No charger current
|
|
A53
|
Temperature in the body is out of tolerance
|
|
A54
|
Incomplete defrosting
|
|
A55
|
Check defrost air relay
|
|
A57
|
Check additional switch 1
|
|
A58
|
Check extras. off 2
|
|
A59
|
No data entry
|
|
A60
|
Recording time is incorrect
|
|
A61
|
Door is open
|
|
A62
|
K2 temperature out of tolerance
|
|
A63
|
KZ temperature out of tolerance
|
|
A71
|
Fuses F2 or F3 are faulty
|
|
A73
|
No power, check cable
|
|
A75
|
Compressor motor overload
|
|
A76
|
Condenser motor overheating
|
|
A77
|
Evaporator motor overheating
|
|
A81
|
Check FHR circuit
|
|
A83
|
Check additional defrost indicator
|
|
A84
|
Check additional failure indicator
|
|
A85
|
Check UL1 circuit
|
|
A86
|
Check UL2 circuit
|
|
A89
|
Check additional. ind. automatic
|
|
A91
|
Check htcon1 coil
|
|
A92
|
Check htcon2 coil
|
|
A93
|
Check the buzzer
|
|
A94
|
Check compressor 1 contactor
|
|
A95
|
Check condenser fan contactor 1
|
|
A96
|
Check generator contactor
|
|
A98
|
Check the high temperature thermostat
|
|
A99
|
Check the network contactor
|
|
A100
|
Overload / current leakage
|
|
A101
|
K2 overheating of additional evaporator electric fans
|
|
A102
|
K3 overheating of electric fans of additional evaporator
|
|
A103
|
K2 check coil 2HTCON1
|
|
A104
|
K2 check coil 2HTCON2
|
|
A105
|
Short circuit check coil 3HTCON1
|
|
A106
|
Short circuit check coil 3HTCON2
|
|
A107
|
Check circuit 2 LSV
|
|
A108
|
Check circuit 3LSV
|
|
A109
|
Check coil 1evcon
|
|
A110
|
Check coil 2evcon
|
|
A111
|
Check 3evcon coil
|
|
A121
|
Check the outdoor temperature sensor (AAT)
|
|
A122
|
Check the Return Air Sensor (RAT)
|
|
A123
|
Check the Supply Air Sensor (SAT)
|
|
A124
|
Check Defrost Termination Temperature 1 (DTT)
|
|
A125
|
Check Discharge Temperature Sensor (CDT)
|
|
A126
|
Check the fuel level sensor circuit
|
|
A127
|
Check the intake temperature sensor
|
|
A128
|
Current Measurement
|
|
A129
|
Check the Coolant Temperature Sensor (ENCT)
|
|
A130
|
Check the engine speed sensor (ENRPM)
|
|
A131
|
Check the evaporator temperature sensor (EVOT)
|
|
A133
|
Check additional temp. sensor 1
|
|
A134
|
Check additional temp. sensor 2
|
|
A136
|
K2 check the air supply sensor
|
|
A137
|
K2 check the air return sensor
|
|
A138
|
K3 check the air return sensor
|
|
A139
|
K2 check the defrost sensor
|
|
A140
|
K3 check defrost sensor
|
|
P141
|
Stopping user self-diagnosis process
|
|
P144
|
Check front UL1 power switch
|
|
P145
|
Check speed solenoid circuit (SCS)
|
|
P146
|
K2 check heater circuit 1
|
|
P147
|
K2 check heater circuit 2
|
|
P151
|
Check spark plug circuit (GP)
|
|
P152
|
Check fuel solenoid circuit
|
|
P153
|
Check the return air sensor
|
|
P154
|
Check the supply air sensor
|
|
P155
|
Check the coolant temperature sensor (ENCT)
|
|
P156
|
Check the battery voltage
|
|
P157
|
Check battery current
|
|
P158
|
Check outside temperature sensor
|
|
P159
|
Check defrost end temperature 1
|
|
P160
|
Check discharge temperature sensor
|
|
P161
|
Check the suction temperature sensor
|
|
P163
|
Short circuit check heater 1
|
|
P164
|
Check the rear UL2 power regulator
|
|
P166
|
K2 check air supply sensor
|
|
P167
|
KZ check heater circuit 2
|
|
P168
|
K2 check liquid valve
|
|
P171
|
Check evaporation and discharge pressure
|
|
P174
|
Check low engine speed
|
|
P175
|
Check high engine speeds
|
|
P176
|
Check liquid valve short circuit
|
|
P177
|
Check the expansion valve overheating
|
|
P178
|
Check the front power regulator
|
|
P180
|
Check the suction pressure regulator valve
|
|
P184
|
K2 check the evaporator fan motor
|
|
P185
|
K3 check evaporator fan motor
|
|
P186
|
Check evaporator outlet temperature
|
|
P187
|
Check Heater Circuit 1
|
|
P188
|
Check Heater Circuit 2
|
|
P189
|
Check evaporator fan motor
|
|
P190
|
Check condenser fan motor
|
|
P191
|
Check the rear power regulator
|
|
P199
|
K2 check the air return sensor on the 2nd evaporator
|
|
P206
|
Check condenser fan circuit
|
|
P207
|
Check compressor contactor circuit
|
|
P208
|
Check the generator contactor circuit
|
|
P209
|
Check the grid contactor circuit
|
|
P210
|
KZ check the air return sensor
|
|
P211
|
K2 check the defrost sensor
|
|
P212
|
K3 check defrost sensor
|
|
A223
|
Engine service required
|
|
A224
|
Network Maintenance Required
|
|
A225
|
General Maintenance Required
|
|
A226
|
Needs additional counter #1 service
|
|
A227
|
Needs additional counter #2 service
|
|
A228
|
Needs additional counter #3
|
|
A229
|
Needs additional counter #4
|
|
A230
|
Needs servicing by add. counter #5
|
|
A232
|
Incorrect value specified
|
|
A233
|
Invalid model number
|
|
A234
|
Invalid serial number
|
|
A235
|
Microprocessor serial number is incorrect
|
|
A236
|
Incorrect per. No. of semitrailer
|
|
A237
|
Incorrect operating parameter
|
|
A238
|
Invalid configuration
|
|
A242
|
Discharge pressure calibration error
|
|
A243
|
Suction/evaporator calibration error
|
