Fujitsu AOYR14LGC User Manual

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SPLIT TYPE

ROOM AIR CONDITIONER

WALL MOUNTED

type

Models Indoor unit Outdoor unit

AS*A07LGC

AS*A09LGC

AS*A12LGC

AS*A14LGC

AO*R07LGC

AO*R09LGC

AO*R12LGC

AO*R14LGC

INVERTER

SERVICE

INSTRUCTION

R410A

Table of Contents

Other manuals for Fujitsu AOYR14LGC

Service Manual140 pages

Questions and Answers:

F
floresedwardAug 18, 2025
What to do if my Fujitsu AOYR14LGC Air Conditioner shows an IPM protection error?
- R
  Robert MaynardAug 18, 2025
  If your Fujitsu Air Conditioner displays an IPM protection error, it could be due to the following reasons: * Blocked heat radiation (inlet/outlet): Ensure that there are no obstructions blocking the inlet or outlet. * Defective outdoor fan: Check if the outdoor fan is working correctly and rotating properly. * Open valves: Verify that the 2-way or 3-way valve is not left open. * Compressor issues: Inspect the compressor's winding resistance value and check for any loose lead wires.
D
Diane HurstAug 20, 2025
What to do if my Fujitsu AOYR14LGC Air Conditioner has a compressor location error?
- N
  Nicholas CunninghamAug 21, 2025
  If your Fujitsu Air Conditioner is showing a compressor location error, check the following: * Valves: Ensure that the 2-way or 3-way valve is not left open. * Compressor: Inspect the compressor's winding resistance value and check for any loose lead wires.
J
Jaime RojasAug 23, 2025
What to do if my Fujitsu Air Conditioner shows a wired remote controller error?
- M
  Mrs. Jacqueline EllisAug 23, 2025
  If your Fujitsu Air Conditioner is showing a wired remote controller error, check the wiring. It may also indicate a Controller PCB failure.
K
Kristen PetersonAug 26, 2025
How to troubleshoot a room temperature thermistor defect in Fujitsu Air Conditioner?
- T
  Tina ObrienAug 26, 2025
  To troubleshoot a defective room temperature thermistor in your Fujitsu Air Conditioner, check the thermistor resistance value. Refer to the "Thermistor characteristics table" for the correct values.
N
nicholas04Aug 28, 2025
How to troubleshoot an indoor heat exchanger thermistor error in Fujitsu AOYR14LGC Air Conditioner?
- S
  stewarttraciAug 28, 2025
  To troubleshoot an indoor heat exchanger thermistor error in your Fujitsu Air Conditioner, check the thermistor resistance value. Refer to the "Thermistor characteristic table" for the correct values.
H
hnicholsAug 30, 2025
How to troubleshoot a discharge thermistor error in Fujitsu AOYR14LGC Air Conditioner?
- J
  James HermanAug 31, 2025
  To troubleshoot a discharge thermistor error in your Fujitsu Air Conditioner, check the thermistor resistance value. Refer to the "Thermistor characteristics table".
D
David DixonSep 2, 2025
How to troubleshoot an outdoor heat exchanger thermistor error in Fujitsu Air Conditioner?
- M
  maddoxjoyceSep 2, 2025
  To troubleshoot an outdoor heat exchanger thermistor error in your Fujitsu Air Conditioner, check the thermistor resistance value. Refer to the "Thermistor characteristics table".
M
Matthew DillonSep 4, 2025
How to troubleshoot an outdoor temperature thermistor error in Fujitsu AOYR14LGC Air Conditioner?
- W
  William HolmesSep 4, 2025
  To troubleshoot an outdoor temperature thermistor error in your Fujitsu Air Conditioner, check the thermistor resistance value. Refer to the "Thermistor characteristics table".
S
Sean SmithSep 7, 2025
What causes a forced auto switch error in Fujitsu AOYR14LGC?
- J
  Jordan PatelSep 7, 2025
  If you're getting a forced auto switch error on your Fujitsu Air Conditioner, check if the forced auto switch is being kept pressed.
S
Scott BarrettSep 9, 2025
What to do if my Fujitsu Air Conditioner shows a main relay error?
- W
  williamslindaSep 9, 2025
  If your Fujitsu Air Conditioner is showing a main relay error, it likely indicates that the main relay is defective.

Fujitsu AOYR14LGC Specifications

General

Refrigerant	R32
Weight (Indoor Unit)	9.5 kg
Type	Split System
Power Supply	50 Hz
Noise Level (Outdoor)	50 dB

Summary

Specifications

Electrical Data

Details electrical specifications like capacity, power source, current, and input watts.

Fan Motor Specifications

Lists fan motor speeds and airflow modes for different operation modes.

Noise Level

Provides noise level data for indoor and outdoor units across various fan speeds.

Weight Information

Specifies the gross and net weight for indoor and outdoor units.

Compressor and Refrigerant Details

Details compressor type, refrigerant type, pipe length, and full charge.

Dimensions

Unit Dimensions

Provides detailed measurements (H x W x D) for indoor and outdoor units.

Refrigerant System Diagram

System Diagram and Pipe Sizes

Illustrates the refrigerant flow and specifies pipe diameters for different models.

Circuit Diagram

Indoor and Outdoor Unit Wiring

Shows the electrical connections and component layout for indoor and outdoor units.

Description of Each Control Operation

Cooling Operation

Explains how cooling capacity is controlled based on room and outdoor temperatures.

Heating Operation

Details heating capacity control based on room and outdoor temperatures.

Dry Operation

Describes compressor and fan control during dry mode operation.

Indoor Fan Control

Explains fan speed settings and operation logic for indoor fan.

Compressor Control

Details compressor operation frequency ranges and start-up control.

Defrost Operation Control

Outlines conditions for starting and completing defrost operations.

Various Protections

Covers protections like discharge gas temperature, current release, and anti-freezing.

Refrigerant Caution -R410A-

R410A Tools and Equipment

Lists specialized tools required for R410A refrigerant handling.

Precaution for Installation

Advises on pipe selection, flare nuts, and avoiding contamination for R410A.

Precaution for Servicing

Highlights differences and precautions for servicing R410A compared to R22.

New Refrigerant R410A Properties

Explains HFC refrigerants and phase-out schedules.

Differences from R22

Compares R410A with R22 regarding oil, pressure, and material requirements.

Trouble Shooting

Unit Does Not Operate

Troubleshooting steps for when the unit shows no signs of operation.

Self Diagnosis Function

Explains how to use the self-diagnosis feature and interpret error codes.

Serial Signal Receiving Error

Guides on diagnosing and resolving serial communication errors between units.

IPM Protection

Provides troubleshooting steps for IPM protection faults in the outdoor unit.

Refrigerant Cycle Diagnosis

Offers a table for diagnosing refrigerant cycle issues and component failures.

Appending Data

Function Setting

Details how to set various operational functions via the remote control.

Jumper Setting

Explains jumper settings for outdoor unit preheating functions.

Pressure and Current Curves

Provides graphs showing pressure and current vs. temperature data.

Thermistor Resistance Values

Lists resistance and voltage values for various thermistors.

Capacity and Input Data

Presents performance data (capacity, input) under different operating conditions.

Replacement Parts

Indoor Unit Parts

Illustrates replaceable parts for the indoor unit.

Outdoor Unit Parts

Shows diagrams of replaceable components for the outdoor unit.

Installation Manual

Electrical Requirements

Specifies wiring, circuit breaker, and power supply requirements.

Mounting Position Selection

Guides on choosing optimal indoor and outdoor unit installation locations.

Indoor Unit Installation

Details the process for mounting the indoor unit and connecting pipes.

Outdoor Unit Installation

Covers placement and installation procedures for the outdoor unit.

Air Purge Procedure

Explains how to remove air from the refrigerant circuit.

Pump Down Operation

Describes refrigerant recovery procedures for relocation or disposal.

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