Carrier Air Conditioner Error Codes

The printed circuit boards existing inside the indoor unit are equipped with self-diagnostic function to detect malfunction and automatically stops the operation at the air conditioner after blinking of power or timer led as per malfunction.

Error Codes List:

Wall Mounted Air Conditioner Error Codes

Indoor Error Codes:

Outdoor Error Codes:

Outdoor Check Function

00: Normal display

01: Number of indoor units in good connection

02: Outdoor unit running mode

03: A indoor unit capacity HP

04: B indoor unit capacity HP

05: C indoor unit capacity HP

06: D indoor unit capacity HP

07: E indoor unit capacity HP

08: A 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 amendatory capacity demand code

14: Target frequency corresponding to the total indoor units amendatory capacity demand

15: Target frequency after the frequency limit

16: Target frequency sending to compressor control chip

17: A 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: A indoor unit room temp.

23: B indoor unit room temp.

24: C indoor unit room temp.

25: D indoor unit room temp.

26: E indoor unit room temp.

27: A 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: Outdoorambient temp.(T4)

34: Compressor discharge temp.(Tp)

35: AD value 0f current

36: AD value of voltage

37: EEV open angle forA indoor unit

38: EEV open angle for B indoor unit

39: EEV open angle for C indoor unit

40: EEV open angle for D Indoor unit

41: EEV open angle for E indoor unit

42: Frequency limit symbol

43: Average value of T2

44: Outdoor fan speed

45: The last error or protection code

Judgment by Flashing LED of Indoor Unit

Notes:

1. The contents of items B and C and a part of item E are displayed when air conditioner operates
2. When item B and C, and item B and a part of item E occur concurrently, priority is given to the block of item B.
3. The check codes can be confirmed on the remote controller for servicing.

Caution at Servicing:

1. After servicing, push the [ Θ] button to return to the normal mode.
2. After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status. However, the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory.

Error Code: 0C

Cause of operation: Short-circuit or disconnection of the room temperatur sensor (TA sensor).

Error Code: 0d

Cause of operation: Being out of place, disconnection, short-circuit, or migration of heat exchanger sensor (TC sensor)

Error Code: 11

Cause of operation: Lock of indoor fan or trouble on the indoor fan circuit

Error Code: 12

Cause of operation: Trouble on other indoor P.C. boards

Error Code: 04

Cause of operation: Return serial signal is not sent to indoor side from operation started. (1) Defective wiring of connecting cable (2) Operation of compressor thermo. Gas shortage Gas leak

Error Code: 05

Cause of operation: Operation command signal is not sent to outdoor side.

Error Code: 14

Cause of operation: Inverter over-current protective circuit operates. (Short time)

Error Code: 16

Cause of operation: Position-detect circuit error or short-circuit between windings of compressor

Error Code: 17

Cause of operation: Current-detect circuit error

Error Code: 18

Cause of operation: Being out of place, disconnection or short- circuit of outdoor temp. sensor

Error Code: 19

Cause of operation: Disconnection or short- circuit of discharge temp. sensor

Error Code: 1A

Cause of operation: Outdoor fan drive system error

Error Code: 1b

Cause of operation: Outdoor heat exchanger temp. sensor error

Error Code: 1C

Cause of operation: Compressor drive output error, Compressor error (lock, missing, etc.), Break down

Error Code: 07

Cause of operation: Return serial signal has been sent when operation started, but it is not sent from halfway.

Error Code: 1d

Cause of operation: Compressor does not rotate.

Error Code: 1E

Cause of operation: Discharge temp. exceeded 117°C

Error Code: 1F

Cause of operation: Break down of compressor

Error Code: 08

Cause of operation: Four-way valve inverse error

Carrier Aircon 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 sensur (TD) ermr

Code: 4 High-pressure protemion 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 Detect circuit error

Code: 14 Current sensor error

Code: 15 Comp. lock error

Code: 16 Comp. break down

Indoor unit:

Code: 2 Condensate Pump Failure or water drain 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 fault (G-Tr short circuit protection)

Code: 20 Position Detection 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 Outdoor unit fault

Code: 27 Outdoor unit Compressor Lock

Code: 28 Outdoor unit Discharge Temperature fault

Code: 29 Outdoor unit Compressor Breakdown

Code: 31 Outdoor unit High TemperatureiPressure Release

Carrier Infinity Series AC Error Codes

The codes are flashed by a series of short and long flashes of the status light. The short flashes indicate the first digit in the status code, followed by long flashes indicating the second digit of the error code. The short flash is 0.25 seconds ON and the long flash is 1.0 second ON. Time between flashes is 0.25 seconds. Time between short flash and first long flash is 1.0 second. Time between code repeating is 2.5 seconds with LED OFF. Count the number of short and long flashes to determine the appropriate flash code. Table 6 gives possible causes and actions related to each error.

Carrier Window Room AC Error Codes

Operate the fan without cooling until the frost disappears.

E1: Loss of communication between the CCC 2 thermostat and an individual system power module board. The LED will display error code EI and the zone number that lost communication. Any additional zones that loose communication will blink in addition to the current zone.

E2: Open circuit or out-of-range indoor temperature sensor. All heat , cool, and dehumidify operations will be locked out. Manual fan operation will continue.

E3: Indoor Temperature Sensor. All heat, cool, and dehumidify operation will be locked out. Manual fan operation will continue.

E4: Open circuit or out of range Outdoor Temperature Sensor (select models). Heat pump and dehumidification operation will be locked out. Air conditioner, furnace, heat strip and fan operation can continue to operate.

E5: Open circuit or out of range Freeze Sensor. Air conditioner and dehumidification operation will be locked out. Heat pump, furnace, heat strip and fan operation can continue to operate but displays the last temperature set-point.

E6: Open circuit Humidity Sensor (Select Models). Air conditioner and dehumidification will be locked out. 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. The heat pump and heat strip DIP switches are both set to the ON position in one zone. Heat pump, heat strip, air conditioner, and dehumidify operation will be locked out in the affected zone.

E9: Invalid zone configuration. The dehumidifier DIP switch and either the heat pump or heat strip DIP switches are set to the ON position in one zone. Heat pump, heat strip, air conditioner, and dehumidify operation will be locked out in the affected zone.

Sometimes a breaker will look like it is in the operating position but is actually tripped. Be sure to flip the breaker lever to ‘OFF’ and then back to “ON’ with the corresponding click.

Carrier Air Conditioner Other Fault Codes

How to use remote controller in service mode?

Carrier Performance Series Fault Codes and Troubleshooting

Performance Residential Ductless Multi-Split Heat Pump System

Multi-Split High-Wall Ductless Split System 38GVM

Aircon Split Malfunction Indicator

When several malfunctions occur at the same time, they will be displayed in circulation and every malfunction is displayed for 5s.

Note:    o: off    ●: on    o: blink

Carrier Performance Series Troubleshooting

Problem: Indoor unit emits a bad odor on start-up

Possible Cause:

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: You hear water flowing noise when the unit is running

Possible Cause: This is normal and is the refrigerant flowing through the system

Solution: No maintenance required

Problem: Indoor unit produces a mist 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. Mist should stop as room is cooled down and the humidity is removed.

Problem: Water leaks into room from Indoor unit

Possible Cause: Condensing water has overflowed

Solution: Check indoor condensing drain or call your representative

Problem: Wireless remote control does not work

Possible Cause:

1. Batteries are dead.
2. Unit needs to be reset

Solution:

1. See battery replacement section in this manual and replace batteries.
2. Turn off power to indoor unit. Remove plug from wall and then reinsert plug. Restart unit

Problem: Unit/System Does Not Work

Possible Cause:

1. To protect the unit upon an immediate restart after a stop, the system controller will delay the unit for 3 minutes before allowing the unit to start back up.
2. The circuit breaker has tripped or a fuse has blown.
3. Power failure
4. Error codes displayed
5. Voltage is too low

Solution:

1. After turning unit off, wait at least 3 minutes before trying to restart.
2. Reset the circuit breaker or replace the fuse with the specified replacement fuse.
3. Restart operation when the power is restored.
4. Call your service representative.
5. Call your service representative

Problem:  Cooling is Not Working Properly

Possible Cause:

1. The filter is blocked with dust.
2. Temperature is not set properly.
3. A window or door is open.
4. The outdoor unit is obstructed.
5. The fan speed is too low.
6. The operation mode is in Fan instead of Cool.

Solution:

1. Clean the air filter.
2. Check the temperature and reset if necessary.
3. Close the window or door.
4. Remove the obstruction.
5. Change the fan speed selection.
6. Change the operating mode to Cool or reset the unit.

Problem:  Heating is Not Working Properly

Possible Cause:

1. The filter is blocked with dust.
2. Temperature is set too low.
3. A window or door is open.
4. The outdoor unit is obstructed.

Solution:

1. Clean the air filter.
2. Check the temperature and reset if necessary.
3. Close the window or door.
4. Remove the obstruction

Problem: Unit Stops During Operation  

Possible Cause:

1. The Off timer is not operating correctly.
2. Error codes displayed

Solution:

1. Restart the operating mode.
2. Call your service representative.

Carrier Performance Series Manual PDF 1

Carrier Performance Series Manual PDF 2

 Carrier Split AirCon  Manual PDF 1

Carrier Split Air Conditioner Manual PDF 2

Carrier Split Aircon Manual PDF 3

Carrier Infinity Series Manual PDF

Carrier Cassette Air Conditioner Error Codes

Source: https://www.carrier.com