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Carrier Split Air Conditioner AC Error Codes – Troubleshooting

Full list of Carrier Multi Split Ductless System AC Error Codes. When error codes appear on your Carrier AC, this tells the user there’s a problem with the Carrier AC with either the inside wall unit or outside unit. The error code that is displayed will tell you the problem that is occurring within the air conditioner. When you know the error code meaning and its definition, this will help you to fully understand the code and what action needs to be taken. You can then troubleshoot the exact issue whether it be parts that need to be serviced, repaired, replaced, or maintained. NOTE: There are also troubleshooting flowcharts below to assist you in fixing your Carrier AC.

Carrier Split System Air Conditioner Error Codes And TroubleshootingCarrier Split System Air Conditioner Error Codes And Troubleshooting

NOTE: Carrier Air Conditioner Heater Model Numbers and Sizes that apply to the Error Codes and Troubleshooting on this page are:
– Carrier Multi Split Ductless Split System: 38GVM Size 18k, 24k, 30k, 36k and 42k.
– Carrier Multi Split Ductless Split System: 40GVM Size 9k, 12k, and 18k.

Carrier AC 38 and 40 GVM Indoor Unit Error CodesCarrier AC 38 and 40 GVM Indoor Unit Error Codes

Carrier Split Air Conditioner 38GVM Error Code Chart Below:Carrier Split Air Conditioner 38GVM Error Codes 1Carrier Split Air Conditioner 38GVM Error Codes 2Carrier Split Air Conditioner 38GVM Error Codes 3Carrier Split Air Conditioner 38GVM Error Codes Chart

Carrier AC Error Codes – Indoor Unit (38GVM & 40GVM)

Note: Different unit sizes may have different error code definitions, check the list carefully below to find the SIZE of your Carrier AC and then your error code.

Carrier AC Indoor Unit Displays Error Code: 08
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Defrost Mode 1

Carrier AC Indoor Unit Displays Error Code: 0A
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Defrost Mode 2

Carrier AC Indoor Unit Displays Error Code: F0
Error Code Definition: (Unit Size 18K – 24K – 30K) = Low charge or refrigeration system blockage
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: F3
Error Code Definition: (Unit Size 18K – 24K – 30K) = Outdoor ambient temperature sensor malfunction
Error Code Definition: (Unit Size 36K – 42K) = Outdoor ambient temperature sensor malfunction

Carrier AC Indoor Unit Displays Error Code: F4
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Outdoor mid-coil temperature sensor malfunction

Carrier AC Indoor Unit Displays Error Code: F5
Error Code Definition: (Unit Size 18K – 24K – 30K) = Outdoor discharge air temperature sensor
Error Code Definition: (Unit Size 36K – 42K) = Outdoor discharge air temperature sensor

Carrier AC Indoor Unit Displays Error Code: F7
Error Code Definition: (Unit Size 18K – 24K – 30K) = Cooling oil return cycle
Error Code Definition: (Unit Size 36K – 42K) = Cooling oil return cycle

Carrier AC Indoor Unit Displays Error Code: E1
Error Code Definition: (Unit Size 18K – 24K – 30K) = System high pressure protection
Error Code Definition: (Unit Size 36K – 42K) = System high pressure protection

Carrier AC Indoor Unit Displays Error Code: E2
Error Code Definition: (Unit Size 18K – 24K – 30K) = Indoor freeze protection
Error Code Definition: (Unit Size 36K – 42K) = Indoor freeze protection

Carrier AC Indoor Unit Displays Error Code: E3
Error Code Definition: (Unit Size 18K – 24K – 30K) = System low pressure protection
Error Code Definition: (Unit Size 36K – 42K) = System low pressure protection

Carrier AC Indoor Unit Displays Error Code: E4
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor discharge high temperature protection
Error Code Definition: (Unit Size 36K – 42K) = Compressor discharge high temperature protection

Carrier AC Indoor Unit Displays Error Code: E6
Error Code Definition: (Unit Size 18K – 24K – 30K) = Communication error between indoor and outdoor
Error Code Definition: (Unit Size 36K – 42K) = Communication error between indoor and outdoor

Carrier AC Indoor Unit Displays Error Code: E7
Error Code Definition: (Unit Size 18K – 24K – 30K) = Mode conflict
Error Code Definition: (Unit Size 36K – 42K) = Mode conflict

Carrier AC Indoor Unit Displays Error Code: E8
Error Code Definition: (Unit Size 18K – 24K – 30K) = System overload protection
Error Code Definition: (Unit Size 36K – 42K) = System overload protection

Carrier AC Indoor Unit Displays Error Code: E9
Error Code Definition: (Unit Size 18K – 24K – 30K) = Cold Blow Protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: dd
Error Code Definition: (Unit Size 18K – 24K – 30K) = Test mode
Error Code Definition: (Unit Size 36K – 42K) = Test mode

Carrier AC Indoor Unit Displays Error Code: Fo
Error Code Definition: (Unit Size 18K – 24K – 30K) = Pump down mode
Error Code Definition: (Unit Size 36K – 42K) = Pump down mode

Carrier AC Indoor Unit Displays Error Code: P0
Error Code Definition: (Unit Size 18K – 24K – 30K) = IPM Rest
Error Code Definition: (Unit Size 36K – 42K) = IPM Rest

Carrier AC Indoor Unit Displays Error Code: P5
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor current protection
Error Code Definition: (Unit Size 36K – 42K) = Compressor current protection

Carrier AC Indoor Unit Displays Error Code: P6
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Communication error between the inverter drive and main board

Carrier AC Indoor Unit Displays Error Code: P7
Error Code Definition: (Unit Size 18K – 24K – 30K) = Heat sink temperature sensor malfunction
Error Code Definition: (Unit Size 36K – 42K) = Heat sink temperature sensor malfunction

Carrier AC Indoor Unit Displays Error Code: P8
Error Code Definition: (Unit Size 18K – 24K – 30K) = IPM over temperature protection
Error Code Definition: (Unit Size 36K – 42K) = IPM over temperature protection

Carrier AC Indoor Unit Displays Error Code: P9
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Open Contactor

Carrier AC Indoor Unit Displays Error Code: Pc
Error Code Definition: (Unit Size 18K – 24K – 30K) = Current sensor malfunction
Error Code Definition: (Unit Size 36K – 42K) = Current sensor malfunction

Carrier AC Indoor Unit Displays Error Code: Pd
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Current sensor mis-wiring protection

Carrier AC Indoor Unit Displays Error Code: PA
Error Code Definition: (Unit Size 18K – 24K – 30K) = Input current protection
Error Code Definition: (Unit Size 36K – 42K) = Input current protection

Carrier AC Indoor Unit Displays Error Code: PF
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Inverter board ambient temperature sensor malfunction

Carrier AC Indoor Unit Displays Error Code: PL
Error Code Definition: (Unit Size 18K – 24K – 30K) = Low voltage protection
Error Code Definition: (Unit Size 36K – 42K) = Low voltage protection

Carrier AC Indoor Unit Displays Error Code: PH
Error Code Definition: (Unit Size 18K – 24K – 30K) = High voltage protection
Error Code Definition: (Unit Size 36K – 42K) = High voltage protection

Carrier AC Indoor Unit Displays Error Code: PP
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Abnormal input AC voltage

Carrier AC Indoor Unit Displays Error Code: PU
Error Code Definition: (Unit Size 18K – 24K – 30K) = Capacitor charging malfunction
Error Code Definition: (Unit Size 36K – 42K) = Capacitor charging malfunction

Carrier AC Indoor Unit Displays Error Code: H1
Error Code Definition: (Unit Size 18K – 24K – 30K) = Defrost or heating oil return cycle
Error Code Definition: (Unit Size 36K – 42K) = Heating oil return cycle

Carrier AC Indoor Unit Displays Error Code: H2
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Forced defrost

Carrier AC Indoor Unit Displays Error Code: H3
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor overheat protection
Error Code Definition: (Unit Size 36K – 42K) = Compressor overheat protection

Carrier AC Indoor Unit Displays Error Code: H5
Error Code Definition: (Unit Size 18K – 24K – 30K) = IPM Protection
Error Code Definition: (Unit Size 36K – 42K) = IPM Protection

Carrier AC Indoor Unit Displays Error Code: H7
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor speed reduction
Error Code Definition: (Unit Size 36K – 42K) = Compressor speed reduction

Carrier AC Indoor Unit Displays Error Code: Hc
Error Code Definition: (Unit Size 18K – 24K – 30K) = PFC board protection
Error Code Definition: (Unit Size 36K – 42K) = PFC board protection

Carrier AC Indoor Unit Displays Error Code: L9
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor high voltage protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: Lc
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor start-up failure
Error Code Definition: (Unit Size 36K – 42K) = Compressor start-up failure

Carrier AC Indoor Unit Displays Error Code: Ld
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor phase loss protection
Error Code Definition: (Unit Size 36K – 42K) = Compressor phase loss protection

Carrier AC Indoor Unit Displays Error Code: LE
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Compressor stalling

Carrier AC Indoor Unit Displays Error Code: LF
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Compressor over-speed protection

Carrier AC Indoor Unit Displays Error Code: A5
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Condenser coil inlet temp sensor malfunction

Carrier AC Indoor Unit Displays Error Code: A7
Error Code Definition: (Unit Size 18K – 24K – 30K) = NA
Error Code Definition: (Unit Size 36K – 42K) = Condenser outlet temperature sensor malfunction

Carrier AC Indoor Unit Displays Error Code: EE
Error Code Definition: (Unit Size 18K – 24K – 30K) = Memory card error
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: En
Error Code Definition: (Unit Size 18K – 24K – 30K) = Frequency limitation for module circuit protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: EU
Error Code Definition: (Unit Size 18K – 24K – 30K) = Frequency limitation for module temperature protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: F6
Error Code Definition: (Unit Size 18K – 24K – 30K) = Frequency limitation for overload protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: F8
Error Code Definition: (Unit Size 18K – 24K – 30K) = Frequency limitation for system circuit protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: F9
Error Code Definition: (Unit Size 18K – 24K – 30K) = Frequency limitation for module circuit protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: FH
Error Code Definition: (Unit Size 18K – 24K – 30K) = Frequency limitation for freeze protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: HE
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor demagnetizing protection
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: LP
Error Code Definition: (Unit Size 18K – 24K – 30K) = Indoor and outdoor units mismatch
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: U1
Error Code Definition: (Unit Size 18K – 24K – 30K) = Compressor phase detection malfunction
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: U3
Error Code Definition: (Unit Size 18K – 24K – 30K) = Low DC bus voltage
Error Code Definition: (Unit Size 36K – 42K) = NA

Carrier AC Indoor Unit Displays Error Code: dn
Error Code Definition: (Unit Size 18K – 24K – 30K) = Communication error between main board and EXV
Error Code Definition: (Unit Size 36K – 42K) = Communication error between main board and EXV

Carrier Split Air Conditioner Error CodesCarrier Split Air Conditioner Error Codes List

Carrier Split System Air Conditioner Error Code Table:

Carrier Error Code 13
Carrier Error Code Definition: Unit A indoor pipe outlet temperature sensor malfunction

Carrier Error Code 14
Carrier Error Code Definition: Unit A indoor pipe inlet temperature sensor malfunction

Carrier Error Code 15
Carrier Error Code Definition: Unit A Indoor return air sensor malfunction

Carrier Error Code 16
Carrier Error Code Definition: Unit A mode conflict

Carrier Error Code 17
Carrier Error Code Definition: Unit A freeze protection

Carrier Error Code 23
Carrier Error Code Definition: Unit B indoor pipe outlet temperature sensor malfunction

Carrier Error Code 24
Carrier Error Code Definition: Unit B indoor pipe inlet temperature sensor malfunction

Carrier Error Code 25
Carrier Error Code Definition: Unit B Indoor return air sensor malfunction

Carrier Error Code 26
Carrier Error Code Definition: Unit B mode conflict

Carrier Error Code 27
Carrier Error Code Definition: Unit B freeze protection

Carrier Error Code 33
Carrier Error Code Definition: Unit C indoor unit pipe outlet temperature sensor malfunction

Carrier Error Code 34
Carrier Error Code Definition: Unit C indoor unit pipe inlet temperature sensor malfunction

Carrier Error Code 35
Carrier Error Code Definition: Unit C Indoor unit return air sensor malfunction

Carrier Error Code 36
Carrier Error Code Definition: Unit C mode conflict

Carrier Error Code 37
Carrier Error Code Definition: Unit C freeze protection

Carrier Error Code 41
Carrier Error Code Definition: Unit D communication error

Carrier Error Code 42
Carrier Error Code Definition: Indoor return air temperature sensor malfunction

Carrier Error Code 43
Carrier Error Code Definition: Unit D indoor pipe outlet temperature sensor malfunction

Carrier Error Code 44
Carrier Error Code Definition: Unit D indoor pipe inlet temperature sensor malfunction

Carrier Error Code 45
Carrier Error Code Definition: Unit D Indoor return air temperature sensor malfunction

Carrier Error Code 46
Carrier Error Code Definition: Unit D mode conflict

Carrier Error Code 47
Carrier Error Code Definition: Unit D freeze protection

Carrier Error Code 51
Carrier Error Code Definition: Unit E communication error

Carrier Error Code 52
Carrier Error Code Definition: Unit E indoor pipe midway temperature sensor malfunction

Carrier Error Code 53
Carrier Error Code Definition: Unit E indoor pipe outlet temperature sensor malfunction

Carrier Error Code 54
Carrier Error Code Definition: Unit E indoor pipe inlet temperature sensor malfunction

Carrier Error Code 55
Carrier Error Code Definition: Unit E Indoor return air temperature sensor malfunction

Carrier Error Code 56
Carrier Error Code Definition: Unit E mode conflict

Carrier Error Code 57
Carrier Error Code Definition: Unit E freeze protection

Carrier Error Code C5
Carrier Error Code Definition: Jumper missing on replacement indoor board

 

 

Carrier AC PartsCarrier AC Parts

 

 

Carrier Ductless Split Air Conditioning Malfunction Indicator Charts Below:
Carrier Ductless Split Air Conditioning Malfunction Checking and EliminationCarrier Ductless Split Air Conditioning Malfunction Indicator 1Carrier Ductless Split Air Conditioning Malfunction Indicator 2Carrier Ductless Split Air Conditioning Malfunction Indicator 3Carrier Ductless Split Air Conditioning Malfunction Indicator Chart – LED LIGHTS

 

Common Troubleshooting For Carrier Split Air Conditioners Below:Carrier Ductless Split Air Conditioning Troubleshooting 1Carrier Ductless Split Air Conditioning Troubleshooting Chart

 

Common Troubleshooting For Carrier Split Air Conditioners Below:

Carrier AC Problem: Indoor unit emits a bad odor on start-up
Carrier AC Possible Cause:
-Air filter dirty
-Output air still has odor after cleaning filter
Carrier AC Solution:
-Clean the air filter

Carrier AC Problem: You hear water flowing noise when the unit is running
Carrier AC Possible Cause:
-This is normal and is the refrigerant flowing through the system

Carrier AC Problem: Indoor unit produces a mist when the air conditioner is running
Carrier AC Possible Cause:
-This is normal cooling and is caused by high humidity and temperature in the room
Carrier AC Solution:
-No maintenance required
-Mist should stop as room is cooled down and the humidity is removed

Carrier AC Problem: Wireless remote control does not work
Carrier AC Possible Cause:
-Batteries are dead
-Unit needs to be reset
Carrier AC Solution:
-Replace batteries
-Turn off power to indoor unit
-Remove plug from wall and then reinsert plug and restart unit

Carrier AC Problem: Water leaks into room from Indoor unit
Carrier AC Possible Cause:
-Condensing water has overflowed
Carrier AC Solution:
-Check indoor condensing drain

Carrier AC Problem: Unit/System Does Not Work
Carrier AC Possible Cause:
-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
-The circuit breaker has tripped or a fuse has blown
-Power failure
-Error codes displayed
-Voltage is too low
Carrier AC Solution:
-After turning unit off, wait at least 3 minutes before trying to restart
-Reset the circuit breaker or replace the fuse with the specified replacement fuse
-Restart operation when the power is restored

Carrier AC Problem: Cooling is Not Working Properly
Carrier AC Possible Cause:
-The filter is blocked with dust
-Temperature is not set properly
-A window or door is open
-The outdoor unit is obstructed
-The fan speed is too low
-The operation mode is in Fan instead of Cool
Carrier AC Solution:
-Clean the air filter
-Check the temperature and reset if necessary
-Close the window or door
-Remove the obstruction
-Change the fan speed selection
-Change the operating mode to Cool or reset the unit

Carrier AC Problem: Heating is Not Working Properly
Carrier AC Possible Cause:
-The filter is blocked with dust
-Temperature is set too low
-A window or door is open
-The outdoor unit is obstructed
Carrier AC Solution:
-Clean the air filter
-Check the temperature and reset if necessary
-Close the window or door
-Remove the obstruction

Carrier AC Problem: Unit Stops During Operation
Carrier AC Possible Cause:
-The Off timer is not operating correctly
-Error codes displayed
Carrier AC Solution:
-Restart the operating mode

PDF – Carrier Split System Air Conditioner Error Codes And Troubleshooting 38 and 40 GVM PDF Service Manual

Troubleshooting and Flowcharts for Carrier AC Split Units Below:Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 1Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
IPM Protection Malfunction

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 2Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
PFC Protection Malfunction

 

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 3Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
Capacitor Charging Malfunction

 

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 4Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
Anti High Temperature and Overload Malfunction

 

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 5Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
Temperature Sensor Malfunction

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 6Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
Start Failure Communication

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 7Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
Communication Malfunction (Some Indoor Units)

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 8Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
Indoor Unit Communication Malfunction

 

 

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart 9

Carrier Split Air Conditioning Error Code and Component Troubleshooting Flowchart
Compressor Overload Malfunction

Carrier AC Tech Support

Need help with your Carrier AC displaying error codes? Please leave a comment below and we will be happy to assist.

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22 thoughts on “Carrier Split Air Conditioner AC Error Codes – Troubleshooting”

  1. What does LED 220 & 230 display codes on my new Carrier 40MAHB split mean? I can note find reference to this code in the owners manual or elsewhere on line. Also one of the interior unit drips water from the front left side. The technician who installed the units are having a difficult time troubleshooting.

  2. I have incounter Carier inverter floor mounted 3hp model FP-SKVO30-WP8T
    . Error displyed Er and 06 , Er and 03. Not running same unit. We need an idea, error code or Service Manual. Tnx GodBless

  3. It means ‘defrost.’ If the exterior unit needs to defrost, it will display this code, then halt the units’ heat function until the exterior compressor defrosts.

  4. My carrier ac outdoor unit is not working. Its a 12k X Eco and now showing FC. What does that mean?

  5. Hi Sir/mam,

    I have the same issue “Carrier AC Shows PA malfunction error (when it happened, indoor normal airflow without cool)” as per given link kindly let me know which manual I have to refer and how can be rectify

  6. Carrier AC Shows PA malfunction error (when it happened, indoor normal air flow without cool)

  7. We have a Carrier 2 tonne split air conditioner in our office.
    An error code EC appears frequently and unit shuts off for every 20 minutes…
    We have to restart the process.
    We see 3 led lights, first led off, 2 one blinking and 3 one is on during fault condition.

  8. what would be problem in Carrier Aircon Split type 42CVES no Error code but only blinking the digital and the compressor Tripping

  9. Please check advise sudden malfunctioned Carrier Stand split type 2hp air con CODE ER3 , whats the meaning and problems. thank you

  10. I have a carrier split ductless 40MAQ 36 inch wall unit that displays Error code df. I have looked in service manual and websites and cannot find what this code means. Help?

  11. Hi. My Carrier split type aircon shows “EC” and is not getting cold anymore. What does “EC” means?

  12. Error code ED appeared on display, indoor unit running, outdoor unit not running. 3 tonner floor mounted Carrier inverter.

  13. I have error code E5 on Carrier mini split 36000 btu.
    What is the way to troubleshoot and fix?
    Please share experiences.

  14. I have carrier rv air conditioner in my camper, an E5 code comes up, what is that telling me?

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