York AC Error Codes – What Do The Errors Mean?

If you own a York AC unit, you may have come across one or more of the following error codes: EC, FC, E5, E7, E1. But what do these codes mean? We will provide you with the York AC error code and the reason for the fault to help you troubleshoot your AC unit.

York AC Error Codes - Air ConditionerYork AC Error Codes – Air Conditioner

Error codes on the York AC mean that the unit is experiencing a problem. The first step to take when troubleshooting these codes is to check the manual for your specific model of York AC unit. You can try simple troubleshooting methods, such as experimenting with the solutions in the manual or try resetting the AC, once you’ve checked the service manual. If you do not have the manual, find your York AC type in the list below and find the error code definition. The error code definition will tell you the exact fault with the AC. This will help you to examine the part that is at fault where it then can then be repaired or replaced.

Table of contents:
York Wall Mounted AC Error Codes
York AC Error Codes
York Central Controller Error Codes
York Outdoor AC Unit Error Codes
York Central Air Conditioning Error Codes

York Wall Mounted Type – AC Error Codes

YORK Air Conditioner Indoor UnitYORK Air Conditioner Indoor Unit

CODE E1 – Reason for Error: Room temperature sensor failure.

CODE E4 – Reason for Error: Indoor EEPROM error.

CODE E7 – Reason for Error: Communication fault between indoor and outdoor units.

CODE E14 – Reason for Error: Indoor fan motor malfunction.

CODE F1 – Reason for Error: The protection of IPM.

CODE F2 – Reason for Error: Overcurrent of the compressor.

CODE F3 – Reason for Error: Communication fault between the IPM and outdoor PCB.

CODE F4 – Reason for Error: Overheat protection for Discharge temperature.

CODE F6 – Reason for Error: Ambient temperature sensor failure.

CODE F7 – Reason for Error: Suction temperature sensor failure.

CODE F8 – Reason for Error: Outdoor DC fan motor fault.

CODE F11 – Reason for Error: deviate from the normal for the compressor.

CODE F12 – Reason for Error: Outdoor EEPROM error.

CODE F19 – Reason for Error: Power voltage is too high or low.

CODE F21 – Reason for Error: Defrost temperature sensor failure.

CODE F22 – Reason for Error: Overcurrent protection of AC electricity for the outdoor model.

CODE F23 – Reason for Error: Overcurrent protection for single-phase for the compressor.

CODE F25 – Reason for Error: Discharge temperature sensor failure.

CODE F28 – Reason for Error: Loop of the station detect the error.

York Air Conditioner Codes

CODE E0 – Reason for Error: Indoor EEPROM Electrically Erasable Programmable Read-Only Memory error.

CODE E1 – Reason for Error: Indoor and outdoor unit communication malfunction.

CODE E3 – Reason for Error: Indoor fan speed malfunction.

CODE E4 – Reason for Error: Indoor room temperature sensor error.

CODE E5 – Reason for Error: Evaporator coil temperature sensor error.

CODE EC – Reason for Error: Refrigerant leak detection system malfunction.

CODE EE – Reason for Error: Water level alarm malfunction.

CODE E8 – Reason for Error: Dual indoor unit (twin model only) communication malfunction.

CODE E9 – Reason for Error: Other twin model malfunction.

CODE F0 – Reason for Error: Overload protection.

CODE F1 – Reason for Error: Outdoor temperature sensor error.

CODE F2 – Reason for Error: Outdoor condenser pipe sensor error.

CODE F3 – Reason for Error: Discharge air temperature sensor error.

CODE F4 – Reason for Error: Outdoor EEPROM Electrically Erasable Programmable Read-Only Memory error.

CODE F5 – Reason for Error: Outdoor fan speed DC fan motor only malfunctions.

CODE F6 – Reason for Error: T2b sensor error.

CODE F7 – Reason for Error: Auto-lifting panel communication error.

CODE F8 – Reason for Error: Auto-lifting panel malfunction.

CODE F9 – Reason for Error: Auto-lifting panel is open.

CODE P0 – Reason for Error: Inverter module IPM protection.

CODE P1 – Reason for Error: High/Low voltage protection.

CODE P2 – Reason for Error: Compressor top overheating protection.

CODE P3 – Reason for Error: Outdoor low-temperature protection.

CODE P4 – Reason for Error: Compressor drive error.

CODE P5 – Reason for Error: Mode conflict.

CODE P6 – Reason for Error: Compressor low-pressure protection.

CODE P7 – Reason for Error: Outdoor IGBT sensor error.

York Central Controller Fault Codes

York Central Control Error CodesYork Central Control Error Codes

CODE EF – Reason for Error: Other malfunction.

CODE E1-E0 – Reason for Error: Communication malfunction – phase sequence or lack of phase.

CODE E2 – Reason for Error: Sensor malfunction.

CODE E3-T3 – Reason for Error: Temperature Sensor malfunction.

CODE E4-T4 – Reason for Error: Temperature Sensor malfunction.

CODE H1 – Reason for Error: Net communication malfunction.

CODE H2 – Reason for Error: Outdoor decreasing malfunction valid for host unit.

CODE H3 – Reason for Error: Outdoor adding malfunction valid for host unit.

CODE PA – Reason for Error: Defrost Protection.

CODE PD – Reason for Error: Oil Return.

CODE PE – Reason for Error: Oil Balance.

CODE PF – Reason for Error: Other Protection.

CODE P1-P0 – Reason for Error: Discharge High-pressure Protection Compressor High-Temperature Protection.

CODE P2 – Reason for Error: Discharge Low-pressure Protection.

CODE P3 – Reason for Error: Compressor Current 1st Protection.

CODE P4 – Reason for Error: Discharge Pipe Temperature Protection.

CODE P5 – Reason for Error: Condenser High-Temperature Protection.

CODE P7 – Reason for Error: Compressor Current 2nd Protection.

CODE P8 – Reason for Error: Compressor Current 3rd Protection.

York AC Remote SymbolsYork AC Remote Symbols

Malfunction Code of York Outdoor unit

CODE E1 – Reason for Error: Phase sequence error.

CODE E2 – Reason for Error: Communication malfunction between indoor/outdoor units.

CODE E3 – Reason for Error: T3 temperature sensor malfunction.

CODE E4 – Reason for Error: T4 temperature sensor malfunction.

CODE E5 – Reason for Error: T5 temperature sensor malfunction.

CODE E6 – Reason for Error: Water level alarm malfunction.

York Central Air Conditioning Error Codes

CODE EA – Reason for Error: Compressor Overcurrent 4 times PA Reserve.

CODE EB – Reason for Error: Inverter Module Protection PB Reserve.

CODE EC – Reason for Error: Clear malfunction PC Reserve.

CODE ED – Reason for Error: Outdoor protection PD Reserve.

CODE EE – Reason for Error: Water level checking malfunction PE Reserve.

CODE EF – Reason for Error: Other malfunction PF Other Protection.

CODE E0 – Reason for Error: Phase sequence or lack of phase P0 Evaporator Temperature Protection.

CODE E1 – Reason for Error: Communication malfunction P1 Anti-cooling or Defrost Protection.

CODE E2 – Reason for Error: T1 sensor malfunction P2 Condenser High-Temperature Protection.

CODE E3 – Reason for Error: T2A sensor malfunction P3 Compressor Temperature Protection.

CODE E4 – Reason for Error: T2B sensor malfunction P4 Discharge Pipe Temperature Protection.

CODE E5 – Reason for Error: T3 sensor malfunction P5 Discharge High-pressure Protection.

CODE E6 – Reason for Error: Over-zero checking malfunction P6 Discharge Low-pressure Protection.

CODE E7 – Reason for Error: EEPROM malfunction P7 Power Lack/Over Volt Protection.

CODE E8 – Reason for Error: Fan motor checking out of control P8 Compressor Over-current.

CODE E9 – Reason for Error: Communication malfunction between PCB and Display board P9 Reserve.

CODE 00# – Reason for Error: CC PCB Communication Malfunction.

CODE 01# – Reason for Error: CCM NIM Communication Malfunction.

CODE 02# – Reason for Error: CCM Function Module Communication Malfunction.

CODE 03# – Reason for Error: CCM PC (gateway) Communication Malfunction

Need more help? Check with York AC customer serviceYork AC Troubleshooting

Other issues with York AC units:

Why is my YORK aircon light blinking? – Lack of Air Circulation

The air conditioner may be too close to another item, which can cause a problem. The problem might be with the unit’s motor or its positioning. If this is the case, you’ll need to figure out what the error code displayed by your aircon device says and reposition or find the solution with the error code or flashing lights in the owner’s manual.

Need help with your York air conditioner? Please leave the model number and the issue in the comments below and we can help!


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