Fujitsu air conditioning troubleshooting
Fujitsu Air Conditioning AC Error Codes And Troubleshooting
Fujitsu Air Conditioning AC error codes and troubleshooting When you see error codes on your Fujitsu Air Conditioner, it means there is a problem. Understanding the error code definition will assist you in deciphering the current issue. After that, you may either solve the problem yourself or contact a specialist.
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NOTE: There are also general troubleshooting charts and a PDF Service Manual file for most contemporary Fujitsu Air Conditioners below to aid you in repairing your Fujitsu AC (See model numbers that apply to the error codes at the bottom of this page).
Error Codes for Fujitsu AC Indoor Unit – WIRED Remote Model
This document covers the current Inverter product line.
The ARY60U, ARY54U Single, and AOY19/24F/U Multi Systems are also covered.
The code begins with the indoor unit address and ends with the fault code shown below.
No E stands for No Fault.
Model Error Code = OO Fujitsu AC Indoor Unit/Wired Remote
ID to RC Comms Fail = Error Code Definition
Model Error Code = O1 for Fujitsu AC Indoor Unit/Wired Remote
ID to OD Comms Fail = Error Code Definition
Error Code = O2 for Fujitsu AC Indoor Unit/Wired Remote Model
ID Air Sensor Open = Error Code Definition
Error Code = O3 for Fujitsu AC Indoor Unit/Wired Remote Model
ID Air Sensor Close = Error Code Definition
ID Air Sensor Close Error Code Definition
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
Model Error Code = O6 for Fujitsu AC Indoor Unit/Wired Remote
OD=OD Sensor Failure in the Pipeline
Error Code = O8 Error Code Definition = Power Source Connection Failure Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O8
Error Code = O9 Error Code Definition = Drain Problem Fujitsu AC Indoor Unit/Wired Remote Model Controlled by a float switch
Error Code Definition = OD Air Sensor Fail Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OA
Model Error Code: OC Error Code Fujitsu AC Indoor Unit/Wired Remote Discharge sensor failure is defined as:
OE Fault Code Definition = Outdoor High Pressure Heatsink error Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OE Error Code = OE Error Code = OE Error Code = OE Error Code = OE Error Code = OE Error
Model Error Code = 11 Fujitsu AC Indoor Unit/Wired Remote
OD PCB Fail = Error Code Definition
Model Error Code = 12 Error Code Definition = ID Fan Fail Fujitsu AC Indoor Unit/Wired Remote
Model Error Code = 13 Fujitsu AC Indoor Unit/Wired Remote
OD = OD An abnormal ID signal error has occurred.
Model Error Code = 14 Fujitsu AC Indoor Unit/Wired Remote
OD EEPROM Fail = Error Code Definition
Model Error Code = 15 for Fujitsu AC Indoor Unit/Wired Remote
Compressor Temp Failure = Error Code Definition
Model Error Code = 16 for Fujitsu AC Indoor Unit/Wired Remote
Definition of Error Code = Pressure Switch Error
Model Error Code = 17 Fujitsu AC Indoor Unit/Wired Remote
IPM Error = Error Code Definition
Model Error Code = 18 for Fujitsu AC Indoor Unit/Wireless Remote
CT Error is a kind of error code.
Model Error Code = 19 for Fujitsu AC Indoor Unit/Wired Remote
Active Filter Module Error is an error code definition.
Model Error Code = 1A for Fujitsu AC Indoor Unit/Wired Remote
Compressor Failure Error Code Definition
Model Error Code = 1B for Fujitsu AC Indoor Unit/Wireless Remote
OD Fan Failure is a kind of error code.
Model Error Code = 1C for Fujitsu AC Indoor Unit/Wired Remote
Inverter to PCB Comms Fail is an error code.
Model Error Code = 1D for Fujitsu AC Indoor Unit/Wireless Remote
2 Way Valve Sensor Fail (Error Code Definition)
Error Code Definition = Expansion Valve Error Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1E
Model Error Code = 1F for Fujitsu AC Indoor Unit/Wireless Remote
Connection ID Unit Error is a type of error code.
Indoor manual switch abnormal on Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 20 Error Code Definition = Indoor manual switch abnormal on Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 20 Error Code Definition = Indoor manual switch abnormal on
Model Error Code = 24 Fujitsu AC Indoor Unit/Wired Remote
Excessive high pressure protection on cooling = Error code definition
Model Error Code = 25 Error Code Definition = PFC circuit error Fujitsu AC Indoor Unit/Wired Remote
Model Error Code = 26 Fujitsu AC Indoor Unit/Wired Remote
Indoor signal error = Error code definition
Model Error Code = 27 Fujitsu AC Indoor Unit/Wired Remote
Indoor signal error = Error code definition
Model Error Code = 28 Fujitsu AC Indoor Unit/Wired Remote
Error Code Definition = Temperature error in the indoor heat exchanger
Model Error Code = 29 Fujitsu AC Indoor Unit/Wired Remote
Error Code Definition = Error with the temperature of the outside heat exchanger (middle).
Model Error Code = 2A Fujitsu AC Indoor Unit/Wired Remote
Error Code Definition = Error detecting the frequency of the power supply
Model Error Code = 2B Fujitsu AC Indoor Unit/Wired Remote
Compressor temperature error = Error code definition
Model Error Code = 2C Fujitsu AC Indoor Unit/Wired Remote
Definition of Error Code = Abnormal four-way valve
Fujitsu AC Wired Remote Control Model – Troubleshooting Indoor Unit
E:EE is displayed
Switch off the unit when E:EE is displayed and press the TEMP and TEMP DOWN buttons simultaneously for 3 seconds.
to return to normal operation
Press the temp up and temp down buttons simultaneously for 3 seconds.
To start test operation
Turn off the unit and press the Master and Fan buttons simultaneously for 3 seconds.
Press Start/Stop to start.
change sensor position
The unit can sense the air temperature on the unit or controller
turn off the unit
Press the thermosensor button for 5 seconds to unlock to change
Toggle the thermosensor button and the controller is displayed
Set to desired setting (unit or controller)
Press the Thermosensor button for 5 seconds to lock
Two Handsets/1 Unit – RC DIP set to SW
Single Handset DIP SW1 is on and 2 is off
Dual Handset both master on and slave off
Group control of up to 16 units from 1 RC handset
DIP SW3 on RC to ON . set on
Set each ID unit rotary SW in series to the unit address (0-15)
Auto restart on power failure
DIP SW2-3 on ID Unit
Auto restart (STD) is off / Manual restart is on
auto changeover
- DIP on SW5
Auto changeover is on (STD) / off is manual
Memory retention on power failure
- dunk on SW6
Memory on / Off No memory
Note: If you have a flashing red, green or yellow LED or lights on your Fujitsu AC unit, please refer to the Fujitsu AC PDF troubleshooting chart here.
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