April 16, 2020
Carrier Inverter AC Error Codes
Carrier Inverter AC Error Codes
Carrier Inverter AC Error Codes Indoor Error Codes:
Error code meaning
E0 Indoor Unit EEPROM Parameter Error
E1 indoor / outdoor units communication error
E3 indoor fan speed out of control
E4 indoor room temperature sensor T1 short circuit or open circuit
E5 Evaporator Coil Temperature Sensor T2 short circuit or open circuit
EC refrigerant leak detection
F1 outdoor ambient temperature sensor T4 short circuit or open circuit
F2 condenser coil temperature sensor T3 short circuit or open circuit
F3 compressor discharge temperature sensor T5 short circuit or open circuit
F4 outdoor unit EEPROM parameter error
F5 outdoor fan speed out of control
P0 IPM malfunction or stronger current protection than IGBT
P1 over voltage or low voltage protection
P2 high temperature safety compressor is the top diagnosis and solution
P4 inverter compressor drive error
P5 Mode Conflict
P6 Compressor Voltage Protection
Outdoor Error Code:
Error code meaning
E0 Outdoor EEPROM Malfunction
E2 indoor / outdoor units communication error
E3 communication malfunction between IP3 board and outdoor main board
Open or short circuit of E4 outdoor unit temperature sensor
E5 Voltage Protection
E8 outdoor fan speed malfunction
F1 Neither an indoor unit coil outlet temperature sensor or sensor connector is faulty
F2 No B Indoor unit coil outlet temperature sensor or sensor connector is faulty
F3 No C Indoor unit coil outlet temperature sensor or sensor connector is faulty
F4 No D Indoor unit coil outlet temperature sensor or sensor connector is faulty
F5 No E Indoor unit coil outlet temperature sensor or sensor connector is defective
P1 High Pressure Protection
P2 low pressure protection
Current protection of p3 compressor
P4 temperature protection of compressor
High Temperature Protection of P5 Condenser
P6 IPM Module Security
Outdoor checking function
00: normal performance
01: Number of indoor units in good relationship
02: outdoor unit running mode
03: HP capacity of an indoor unit
04: B Indoor Unit Capacity HP
05: C indoor unit capacity HP
06: D indoor unit capacity HP
07: E indoor unit capacity H.P.
08: An Indoor Unit Capacity Demand Code
09: B Indoor Unit Capacity Demand Code
10: C Indoor Unit Capacity Demand Code
11: D Indoor Unit Capacity Demand Code
12: e indoor unit capacity demand code
13: Total Indoor Units Modification Capacity Demand Code
14: Target Frequency, Demand Capacity Capacity for Total Indoor Units
15: Target frequency after frequency range
16: Compressor control chip is for sending target frequency
17: An indoor unit evaporator outlet temp.
18: B indoor unit evaporator outlet temp.
19: C indoor unit evaporator outlet temp
20: D indoor unit evaporator outlet temp.
21: e indoor unit evaporator outlet temp.
22: An indoor unit room tem.
23: B indoor unit room tem.
24: C indoor unit room tem.
25: D indoor unit room tem.
26: e indoor unit room tem.
27: An indoor unit evaporator temp.
28: B indoor unit evaporator temp.
29: C indoor unit evaporator temp.
30: D indoor unit evaporator temp.
31: E indoor unit evaporator temp.
32: Condenser Pipe Temp. (T3)
33: Outdoor Temperry. (T4)
34: Compressor Discharge Temp. (Tp)
35: AD value 0f current
36: AD value of voltage
37: EEV open angle forA indoor unit
38: B EEV open angle for indoor unit
EEV open angle for 39: C indoor unit
EEV open angle for 40: D indoor unit
41: EEV open angle for E indoor unit
42: frequency limit symbol
43: average value of T2
44: outer fan speed
45: Last error or security code
- Carrier Inverter AC Error Codes
-
Indoor unit’s decision by flashing LED
-
Judgment by Flashing LED of Indoor Unit - Indoor unit’s decision by flashing LED
notes:
1. The contents of items B and C and a part of item E are displayed when the air conditioner is operated
2. When items B and C, and a part of item B and item E are concurrent, the block of item B is preferred.
3. The check code can be confirmed on the remote controller for servicing.
Caution in servicing:
1. After servicing, push the [push] button to return to normal mode.
2. After servicing by check code, turn off the power supply breaker, and turn on the power supply breaker again so that the memory in the microcomputer returns the initial state. However, the check codes are not removed even if the power supply is turned off because they are stored in fixed memory.
- Error Code: 0C
Reason for Operation: Disconnection of short-circuit or room temperature sensor (TA sensor).
- Error Code: 0D
Reason for operation: out of place, disconnection, short-circuit, or migration of heat exchanger sensor (TC sensor)
- Error Code: 11
Reason for operation: trouble with indoor fan lock or indoor fan circuit
- Error Code: 12
Reason for operation: Other indoor P.C. Trouble on. The boards
- Error Code: 04
Reason for Operation: The serial signal returned from the started operation is not sent to the indoor side. (1) Defective wiring of connecting cable (2) Operation of compressor thermo. Gas shortage gas leakage
- Error Code: 05
Reason for Operation: The operation command signal is not sent to the outer side.
- Error Code: 14
Reason for Operation: The inverter operates an over-current protective circuit. (Less time)
- Error Code: 16
Reason for operation: Position-detect circuit error or short-circuit between windings of the compressor
- Error Code: 17
Reason for operation: current-address circuit error
- Error Code: 18
Reason for operation: Out of place, disconnected or short-circuited outdoor tem. The sensor
- Error Code: 19
Reason for operation: Disconnection or short-circuit of discharge tem. The sensor
- Error Code: 1A
Reason for operation: outdoor fan drive system error
- Error Code: 1B
Reason for operation: outdoor heat exchanger temp. Sensor error
- Error Code: 1C
Reason for operation: compressor drive output error, compressor error (lock, missing etc.), break down
- Error Code: 07
Reason for Operation: The return serial signal has been sent when the operation started, but has not been sent halfway through.
- Error Code: 1D
Reason for operation: The compressor does not rotate.
- Error Code: 1E
Reason for Operation: Discharge Temp. Exceeded 117 ° C
- Error Code: 1F
Reason for operation: breakdown of the compressor
- Error Code: 08
Reason for operation: four-way valve inversion error
- Carrier AC Remote Control Display
-
Carrier AC Remote Control Display,Carrier Inverter AC Error Codes - Carrier X-power inverter error code;
-
Carrier X-Power Inverter Error Codes - outdoor unit:
- Code: 1 heat exchanger sensor (TE) error
- Code: 2 suction sensor (TS) error
- Code: 3 Hot Gas Discharge Sensor (TD) ERMR
- Code: 4 high pressure proteomian error
- Code: 5 outdoor air temperature sensor error (TO)
- Code: 6 outdoor DC fan motor error
- Code: 7 communication error between IPDU (abnormal stop)
- Code: 8 high pressure release operation
- Code: 9 Discharge Temp. Error: hot gas is too high
- Code: 10 EEPROM Error
- Code: 11 Communication error between IPDU (no abnormal stop)
- Code: 12 G-Tr short-circuit protection
- Code: 13 Find circuit error
- Code: 14 current sensor error
- Code: 15 comp. Lock error
- Code: 16 COMP. the division
- Inner detachment:
- Code: 2 compaction pump failure or drainage failure
- Code: 3 Indoor Unit Room Air Sensor Fault
- Code: 4 Indoor Unit TC Coil Sensor Fault
- Code: 10 Indoor Unit Software Fault (EEPROM Corrupt)
- Code: 12 Indoor Unit Software Fault (Address / Zone Corrupt)
- Code: 14 loss of signal from CDU
- Code: 15 Indoor Unit Tcj Coil Sensor Fault
- Code: 18 outdoor unit control box faults (G-Tr short circuit protection)
- Code: 20 status check circuit error
- Code: 21 outdoor unit current sensor fault
- Code: 22 outdoor unit heat exchange sensor fault
- Code: 23 outdoor unit discharge temperature sensor fault
- Code: 24 Outdoor Unit Fan Fault
- Code: 26 other external unit fault
- Code: 27 outdoor unit compressor lock
- Code: 28 outdoor unit discharge temperature defect
- Code: 29 outdoor unit compressor breakdown
- Code: 31 outdoor unit high temperature release
- Carrier Inverter AC Error Codes
- Carrier Infinity Series AC Error Code
-
Carrier Infinity Series AC Error Codes - Carrier Infinity Series AC Error Code
The code is flashed by a series of short and long flashes of light. Short flash indicates the first digit in the status code, followed by the second digit of the error code in long flash. Short flash is 0.25 seconds on and long flash is 1.0 seconds on. The time between flashes is 0.25 seconds. The time between the short flash and the first long flash is 1.0 seconds. The time between code repeats is 2.5 seconds with the LED off. Count the number of short and long flashes to determine the appropriate flash code. Table 6 gives the possible causes and functions related to each error.Carrier Inverter AC Error Codes -
Carrier Inverter AC Error Codes,Carrier Inverter AC Error Codes,Carrier Inverter AC Error Codes 
- Carrier Inverter AC Error Codes
- Carrier Window Room AC Error Code
Carrier Window Room AC Error Code
Operate the fan without cooling until frost disappears.
- E1: Loss of communication between the CCC 2 thermostat and an individual system power module board. The LED error code will display the EI and the communication lost area number. Any additional area that would blink other than the loose communication current area.
- E2: Open circuit or out-of-the-range indoor temperature sensor. All heat, cool and dehumidify operations will be shut out. Manual fan operation will continue.
- E3: Indoor Temperature Sensor. All heat, cool, and dehumidify operations will be stopped outside. Manual fan operation will continue.
- E4: Open circuit or out of range outdoor temperature sensor (select model). The heat pump and dehydration operation will be discontinued. Air conditioners, furnaces, heat strips and fans may continue to operate.
- E5: Open circuit or out of range freeze sensor. Air conditioners and dehumidification operations will be locked. Heat pumps, furnaces, heat strips and fans may continue to operate but the final temperature represents the set-point.
- E6: Open Circuit Humidity Sensor (Select Model). Air conditioners and dehumidification will be locked. The heat pump, furnace heat strip and fan can continue to operate.
- E7: Loss of 120 VAC power to all power module boards on the system. The system will shut down.
- E8: Invalid zone configuration. Both the heat pump and the heat strip DIP switch are in the ON position in the same area. The heat pump, heat strip, air conditioner and dehumidify operation will be shut down in the affected area.
- E9: Invalid zone configuration. Dehumidifier DIP switches and either heat pump or heat strip DIP switches are set to ON positions in a zone. The heat pump, heat strip, air conditioner and dehumidify operation will be shut down in the affected area.
Sometimes a breaker will look as if it is in operating condition but has actually tripped. Be sure to flip the breaker lever to ‘OFF’ and then return to “ON” with the corresponding click.
Other error code
- nF: Air Filter Replacement Reminder: After 2,880 hours of use, the display window “nF” will flash on the indoor unit. This is a reminder to change your filter. After 15 seconds, the unit will return to its previous performance. To reset the reminder, press the LED button 4 times on your remote control, or the MANUAL CONTROL button 3 times. If you do not reset the reminder, the “nF” indicator will flash again upon restarting the unit.
- CL: Air Filter Cleaning Reminder: After 240 hours of use, the display window “CL” will flash on the indoor unit. This is a reminder to clean your filter. After 15 seconds, the unit will return to its previous performance. To reset the reminder, press the LED button 4 times on your remote control, or the MANUAL CONTROL button 3 times. If you do not reset the reminder, the “CL” indicator will flash again upon restarting the unit.
- EC: Refrigerant leakage detection: Indoor unit will automatically display “EC” The “timer” indicator light goes off and the “run” indicator light flashes 7 times when the unit detects a refrigerant leak
- How to use remote controller in service mode?
- Carrier performance chain error codes and troubleshooting
- Error code trouble
- 08 defrost mode 1
- 0A Defrost Mode 2
- F0 low charge or refrigeration system interruption
- F3 Outdoor Ambient Temperature Sensor Malfunction
- F4 outdoor mid-coil temperature sensor malfunction
- F5 outdoor discharge air temperature sensor
- F7 cooling oil return cycle
- E1 System High Pressure Protection
- E2 Indoor Freeze Protection
- E3 System Low Pressure Protection
- E4 Compressor Discharge High Temperature Protection
- E6 communication error between indoor and outdoor
- E7 mode conflict
- E8 System Overload Protection
- E9 Cold Blow Protection
- dd test mode
- Pho pump down mode
- P0 IPM left
- P5 Compressor Current Protection
- P6 communication error between inverter drive and main board
- P7 heat sink temperature sensor malfunction
- P8 IPM over temperature protection
- P9 open contactor
- PC current sensor malfunction
- PD current sensor incorrect wiring protection
- PA input current protection
- PF inverter board ambient temperature sensor malfunction
- PL low voltage protection
- PH high voltage protection
- PP abnormal input AC voltage
- Pu capacitor charging malfunction
- H1 heating oil return cycle
- H2 forced defrost
- H3 Compressor Overheat Protection
- H5 IPM Security
- H7 compressor speed reduction
- HC PFC Board Security
- L9 Compressor High Voltage Protection
- Lc compressor start-up failure
- LD Compressor Phase Loss Protection
- Take compressor standstill
- LF Compressor Over-Speed Protection
- A5 condenser coil inlet temp sensor sensor malfunction
- A7 condenser outlet temperature sensor malfunction
- EE memory card error
- N frequency limit for module circuit protection
- EU frequency limit for module temperature protection
- F6 frequency limit for overload protection
- F8 frequency limit for system circuit protection
- F9 frequency limit for module circuit protection
- FH frequency limit for freeze protection
- Damaging His Majesty’s Compressor Safety
- LP indoor and outdoor units are mismatched
- U1 Compressor Phase Detection Malfunction
- U3 Low DC Bus Voltage
- dn communication error between main board and EXV
- 13 unit one indoor pipe outlet temperature sensor malfunction
- 14 unit one indoor pipe inlet temperature sensor malfunction
- 15 unit one indoor return air sensor malfunction
- 16 unit one mode conflict
- 17 Unit A Freeze Protection
- 23 unit B indoor pipe outlet temperature sensor malfunction
- 24 unit B indoor pipe inlet temperature sensor malfunction
- 25 unit B indoor return air sensor malfunction
- 26 unit B mode conflict
- 27 Unit B Freeze Protection
- 33 unit C indoor unit pipe outlet temperature sensor malfunction
- 34 Unit C Indoor Unit Pipe Inlet Temperature Sensor Malfunction
- 35 unit C indoor unit return air sensor malfunction
- 36 unit C mode conflict
- 37 Unit C Freeze Protection
- 41 unit D communication error
- 42 indoor return air temperature sensor malfunction
- 43 Unit D Indoor Pipe Outlet Temperature Sensor Malfunction
- 44 Unit D Indoor Pipe Inlet Temperature Sensor Malfunction
- 45 unit d indoor return air temperature sensor malfunction
- 46 unit d mode conflict
- 47 Unit D Freeze Protection
- 51 unit e communication error
- 52 Unit E Indoor Pipe Midway Temperature Sensor Malfunction
- 53 Unit E Indoor Pipe Outlet Temperature Sensor Malfunction
- 54 Unit E Indoor Pipe Inlet Temperature Sensor Malfunction
- 55 unit e indoor return air temperature sensor malfunction
- 56 unit E mode conflict
- 57 Unit E Freeze Protection
- C5 jumper replacement is missing on indoor board
- Fault indicator
When several malfunctions occur at the same time, they will be displayed in vogue and each malfunction will be displayed for 5 s.
Note: o: off ●: o on: eyelid 
- Career Performance Series Troubleshooting
- Problem: Indoor unit emits bad odor at start-up
Possible reasons:
1. Air filter dirty
2. Output air still has odor after cleaning filter
Solution:
1. Clean the air filter
2. Contact your service representative
- Problem: When the unit is running, you hear the noise of running water
Possible Cause: This is normal and is the refrigerant flowing through the system.
Solution: no maintenance required
- Problem: Indoor unit creates haze when the air conditioner is running
Possible Cause: This is normal cooling and is caused by high humidity and temperature in the room
Solution: No maintenance required. The mist should be stopped as the room is cooled and the humidity removed.
- Problem: Room water leakage from indoor unit
Possible cause: Condensed water is overflowing
Solution: Check the indoor condensing drain or call your representative
Carrier Display Series AC Remote Control
- Problem: Wireless remote control does not work
Possible reasons:
1. Batteries are dead.
2. The unit needs to be reset
Solution:
1. See the Battery Replacement section in this manual and replace the battery.
2. Turn off the power to the indoor unit. Remove the plug from the wall and then reinstall the plug. Restart unit
- Problem: Unit / system does not work
Possible reasons:
1. To protect the unit upon immediate restart after a stop, the system controller will delay the unit for 3 minutes before allowing the unit to restart.
2. The circuit breaker is stuck or the fuse has blown.
3. power failure
4. Error code displayed
5. Voltage is too low
Solution:
1. After closing the unit, wait at least 3 minutes before attempting to restart.
2. Reset the circuit breaker or replace the fuse with the specified replacement fuse.
3. Resume operation when power is restored.
4. Call your service representative.
5. Call your service representative
- Problem: cooling is not working properly
Possible reasons:
1. The filter is blocked by dust.
2. The temperature is not set properly.
3. A window or door is open.
4. The outdoor unit is obstructed.
5. The fan speed is very low.
6. Operation mode is in fan instead of cool.
Solution:
1. Clean the air filter.
2. Check temperature and reset if necessary.
3. Close the window or door.
4. Remove the blockage.
5. Change the fan speed selection.
6. Change the operating mode to cool or reset the unit.
- Problem: heating is not working properly
Possible reasons:
1. The filter is blocked by dust.
2. The temperature is too low.
3. A window or door is open.
4. The outdoor unit is obstructed.
Solution:
1. Clean the air filter.
2. Check temperature and reset if necessary.
3. Close the window or door.
4. Remove the obstruction
- Problem: Unit stops during operation
Possible reasons:
1. The off timer is not working correctly.
2. Error code displayed
Solution:
1. Restart operating mode.
2. Call your service representative.
- How to reset a carrier air conditioner unit?
1. Use the “Reset” button on the air conditioner’s control panel.
2. Use the “Reset” button for 3 seconds and then release.
3. Press and hold the “Reset” button for another 3 seconds – this time there should be a light flash on the display.
4. Allow a few moments while resetting the unit. - Carrier AC Error Codes and Troubleshooting
- Hitachi AC Error Code Solution|Inverter AC Error Code
- Error: View 4f58b9e0tp may not exist
Carrier Split Air Conditioner Error Codes
Carrier Cassette AC Error Codes
Carrier AC Error Codes and Troubleshooting
About Author
