Fujitsu Air Conditioning AC Error Codes And Troubleshooting






Fujitsu AC error codes. When error codes appear on your Fujitsu Air Conditioner this tells the you there is a problem. Knowing the error code definition will help you to understand the present fault. You can then troubleshoot the issue or call a technician.

NOTE: There are also general troubleshooting charts below to assist you in fixing your Fujitsu AC and a PDF Service Manual file for most current Fujitsu Air Conditioners (See model numbers that apply to the error codes at the bottom of this page).

Fujitsu Air Conditioning AC Error Codes And TroubleshootingFujitsu Air Conditioning AC Error Codes And Troubleshooting

Fujitsu AC Indoor Unit – WIRED Remote Model Error Codes

Covers the current Inverter product range.
They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi System

Code Consists of Indoor Unit Address Followed by the Fault Code Below.
No E denotes No Fault.



Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OO
Error Code Definition = ID to RC Comms Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O1
Error Code Definition = ID to OD Comms Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O2
Error Code Definition = ID Air Sensor Open

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O3
Error Code Definition = ID Air Sensor Close

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O4
Error Code Definition = ID Pipe Sensor Open

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O5
Error Code Definition = ID Pipe Sensor Close

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O6
Error Code Definition = OD Pipe Sensor Fail



Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O8
Error Code Definition = Power Source Connection Failure

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O9
Error Code Definition = Drain Problem Float switch operated

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OA
Error Code Definition = OD Air Sensor Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OC
Error Code Definition = Discharge sensor Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OE
Error Code Definition = Outdoor High Pressure Heatsink error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 11
Error Code Definition = OD PCB Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 12
Error Code Definition = ID Fan Fail



Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 13
Error Code Definition = OD Signal Abnormal ID signal error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 14
Error Code Definition = OD EEPROM Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 15
Error Code Definition = Compressor Temp Failure

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 16
Error Code Definition = Pressure Switch Error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 17
Error Code Definition = IPM Error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 18
Error Code Definition = CT Error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 19
Error Code Definition = Active Filter Module Error



Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1A
Error Code Definition = Compressor Failure

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1B
Error Code Definition = OD Fan Failure

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1C
Error Code Definition = Inverter to PCB Comms Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1D
Error Code Definition = 2 Way Valve sensor Fail

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1E
Error Code Definition = Expansion Valve Error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1F
Error Code Definition = Connection ID Unit Error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 20
Error Code Definition = Indoor manual switch abnormal



Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 24
Error Code Definition = Excessive high pressure protection on cooling

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 25
Error Code Definition = PFC circuit error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 26
Error Code Definition = Indoor signal error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 27
Error Code Definition = Indoor signal error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 28
Error Code Definition = Indoor heat exchanger temperature error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 29
Error Code Definition = Outdoor heat exchanger temperature (middle) error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 2A
Error Code Definition = Power supply frequency detection error



Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 2B
Error Code Definition = Compressor temperature error

Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 2C
Error Code Definition = Four-way valve abnormal

Fujitsu WIRED AC indoor error codes 1

Fujitsu WIRED AC indoor error codes 2Fujitsu WIRED AC indoor error codes

Fujitsu AC WIRED Remote Control Models – Troubleshooting Indoor Unit

E:EE Is Displayed
When E:EE is displayed switch unit off and press the temp up and temp down buttons simultaneously for 3 seconds.

To Return to Normal Operation
Press Temp Up and Temp Down Buttons together for 3 seconds.

To Initiate Test Operation
Switch Unit Off & Press Master & Fan Buttons together for 3 seconds.
Press Start/Stop to Initiate.



Changing the Sensor Position
The unit can sense the air temperature at the unit or controller
Turn Unit Off
To change press THERMOSENSOR button for 5 seconds to unlock
Toggle the THERMOSENSOR button & controller is displayed
Set to desired setting (unit or controller)
Press THERMOSENSOR button for 5 seconds to lock

Two Handsets/1 Unit – set on RC DIP SWs
Single handset DIP SW1 is On & 2 is Off
Dual Handset Master Both On & Slave both Off

Group Control up to 16 Unit from 1 RC Handset
Set DIP SW3 on RC to ON
Set Each ID Unit Rotary SW to Unit Address (0-15) in series

Auto Restart on Power Failure
DIP SW2-3 on ID Unit
Off is auto restart (std)/On is Manual Restart

Auto Changeover
DIP SW5 on RC
On is auto changeover (std)/Off is Manual

Memory Retention on Power Failure
Dip SW6 on RC
On is Memory/Off is no memory



NOTE: If you have flashing red, green, or yellow LEDs or lights on your Fujitsu AC unit, please see the Fujitsu AC PDF troubleshooting chart here.

Fujitsu WIRELESS AC indoor error codesFujitsu WIRELESS AC indoor error codes

 

Fujitsu AC Wall Mounted TroubleshootingFujitsu AC Wall Mounted Troubleshooting

 

Fujitsu AC Outdoor PCB Fault CodesFujitsu AC Outdoor PCB Fault Codes



 

These pages cover the current Inverter product range. They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi Systems. Wall Mounted Single Systems ASY, ASYA & ASYB Includes AWYZ Nokria Models. All Other Wireless Indoor Units AUY, ABY & AWY Models. Including Multi Systems (Not J Series or VRF).

Need help? Please leave your question below. We can assist with all AC error codes.

ALLEN VETTER - DIY Repair Assistant
Allen is a Home Maintenance/Appliance tech and the author/creator of this website. He has 30 years of experience troubleshooting and repairing all types of machinery. Contact here



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