Fujitsu AOYR14LCC User Manual (English)

Other manuals for Fujitsu AOYR14LCC

Servise Manual17 pages

Service Manual140 pages

Questions and Answers:

C
Cathy KellerAug 20, 2025
Why my Fujitsu AOYR14LCC does not operate at all?
- J
  Jason BryanAug 21, 2025
  If your Fujitsu Air Conditioner isn't operating, and the Operation Lamp and Timer Lamp aren't lit, you should check a few things: * Ensure the input power voltage from the exclusive circuit AC outlet is normal. * Make sure the AC plug is securely inserted into the AC outlet and isn't loose. * Verify that any connected cables are wired correctly. * Confirm that each connector is securely inserted.
C
Courtney MorenoAug 22, 2025
What to do if my Fujitsu AOYR14LCC shows excessive high pressure protection on cooling?
- C
  claudiawhiteAug 22, 2025
  If your Fujitsu Air Conditioner is showing an excessive high pressure protection error during cooling, check the following: * Ensure that heat radiation is not blocked at the inlet or outlet. * Verify that the outdoor fan is functioning correctly and rotating. * Check for any issues with the refrigeration cycle.
W
wpittmanAug 25, 2025
What causes IPM protection in my Fujitsu AOYR14LCC?
- R
  rivasdanaAug 25, 2025
  If your Fujitsu Air Conditioner is showing IPM protection, it indicates that an abnormal current value has been detected. Here's what you should check: * Ensure that heat radiation is not blocked at the inlet or outlet. * Verify that the outdoor fan is functioning correctly and rotating. * The controller PCB might be defective.
J
Jennifer SmallAug 26, 2025
What to do if my Fujitsu AOYR14LCC has indoor fan lock error?
- A
  Adam ObrienAug 26, 2025
  If your Fujitsu Air Conditioner displays an indoor fan lock error, it means the indoor fan speed is 0 rpm after 56 seconds from starting or changing the fan mode. Here’s what to check: * Check the fan motor connector for looseness or defective contact. * The fan motor might be defective. * The controller PCB might be defective.
C
cowanmichaelAug 27, 2025
What to do if my Fujitsu AOYR14LCC Air Conditioner has indoor fan speed error?
- X
  xbennettAug 27, 2025
  If your Fujitsu Air Conditioner displays an indoor fan speed error, it means the indoor fan speed is 1/3 of the target frequency after 56 seconds from starting or changing the fan mode. Here’s what to check: * Check the fan motor connector for looseness or defective contact. * The fan motor might be defective. * The controller PCB might be defective.
C
Christina ValenciaAug 29, 2025
What causes a room temperature thermistor defective in Fujitsu AOYR14LCC Air Conditioner?
- D
  dannycruzAug 29, 2025
  If your Fujitsu Air Conditioner shows a room temperature thermistor defect, it means the thermistor detected an abnormal temperature when the power was turned on. Check the thermistor resistance value. The controller PCB might be defective.
E
Eric MillerAug 31, 2025
What does main relay error mean on Fujitsu AOYR14LCC Air Conditioner?
- D
  donovanmelissaAug 31, 2025
  If your Fujitsu Air Conditioner displays a main relay error, it means that after 2 minutes 20 seconds of stopping operation, the signal from the outdoor unit is received even though the main relay is OFF. The main relay might be defective or the Controller PCB might be defective.
C
connermichaelSep 2, 2025
Why Fujitsu AOYR14LCC shows serial reverse transfer error at starting up operation?
- C
  Courtney CooperSep 2, 2025
  If your Fujitsu Air Conditioner displays a serial reverse transfer error at startup, it means the indoor unit isn't receiving a signal for 10 seconds after the power relay turns on. Check the indoor/outdoor cable connection. If the wiring is normal, measure the voltage of the outdoor unit terminals and diagnose the defective location.
R
Robin DeanSep 3, 2025
What does serial reverse transfer error during the operation mean for Fujitsu Air Conditioner?
- K
  Kathleen AndersonSep 3, 2025
  If your Fujitsu Air Conditioner displays a serial reverse transfer error during operation, it means the indoor unit isn't receiving a signal for 10 seconds. Check the indoor/outdoor cable connection. If the wiring is normal, measure the voltage of the outdoor unit terminals and diagnose the defective location.
K
Kaitlyn ThompsonSep 5, 2025
Why Fujitsu AOYR14LCC Air Conditioner shows serial forward transfer error at starting up operation?
- H
  Harry SmithSep 5, 2025
  If your Fujitsu Air Conditioner displays a serial forward transfer error at startup, it means the outdoor unit isn't receiving a signal for 10 seconds after the power relay turns on. Check the indoor/outdoor cable connection. If the wiring is normal, measure the voltage of the outdoor unit terminals and diagnose the defective location.

Fujitsu AOYR14LCC Specifications

General

Brand	Fujitsu
Model	AOYR14LCC
Category	Air Conditioner
Language	English

Summary

Service Instruction Manual

Split Type Air Conditioner Overview

Introduces split type, wall-mounted, inverter air conditioners.

Product Specifications

Indoor and Outdoor Unit Specifications

Details electrical data, compressor, fan motor, dimensions, noise, and pipe specifications.

Model-Specific Specifications

Provides detailed specifications for various model series.

Additional Model Specifications

Continues specifications for different model series.

Unit Dimensions

Indoor Unit Dimensions

Shows dimensions for indoor units of various models.

Outdoor Unit Dimensions

Displays dimensions for outdoor units of various models.

Dimensions for Specific Model Series

Details dimensions for ASYA12LCC/AOYR12LCC models.

Dimensions for ASYB/AOYS Models

Shows dimensions for ASYB09/12LDC and AOYS09/12LDC units.

Dimensions for ASYA14/18LCC Models

Presents dimensions for ASYA14/18LCC and AOYR14/18LCC models.

Refrigerant System Diagrams

System Diagram for ASYA/AOYR 07/09LCC

Illustrates the refrigerant flow for specific indoor/outdoor units.

System Diagram for ASYA12/ASYB/AOYS Models

Shows refrigerant flow for ASYA12LCC, ASYB/AOYS models.

System Diagram for ASYA14/18LCC Models

Displays refrigerant flow for ASYA14/18LCC and AOYR14/18LCC models.

Circuit Diagrams

Circuit Diagram for ASYA/AOYR 07/09LCC

Provides the electrical circuit diagram for specific models.

Circuit Diagram for ASYA12LCC

Shows the electrical circuit for the ASYA12LCC model.

Circuit Diagram for ASYB/AOYS Models

Presents the circuit diagram for ASYB/AOYS series.

Circuit Diagram for ASYA14/18LCC Models

Details the circuit diagram for ASYA14/18LCC models.

Control Operation Descriptions

Cooling Operation Control

Explains cooling capacity control based on temperature.

Heating Operation Control

Details heating capacity control logic.

Dry Operation Control

Describes the indoor unit control for dry operation.

Auto Changeover Operation

Explains automatic switching between operating modes.

Indoor Fan Control

Indoor Fan Speed Settings

Lists fan speeds for different operation modes and models.

Fan Operation Modes

Explains how the indoor fan operates in various modes.

Cooling, Dry, Heating Fan Modes

Describes fan operation in Cooling, Dry, and Heating modes.

Cool Air Prevention Control

Details fan control to prevent cool air blow during heating.

Outdoor Fan Control

Outdoor Fan Motor Types

Identifies AC and DC motor types for outdoor fans.

Outdoor Fan Speed Control

Explains fan speed based on operation mode and compressor frequency.

Louver Control

Vertical Louver Control

Describes how to adjust vertical airflow direction.

Swing Operation

Explains the automatic swing function of the louvers.

Compressor Control

Compressor Operation Frequency Range

Defines the operating frequency ranges for the compressor.

Compressor Start-up Frequency Control

Details how compressor frequency is managed during start-up.

Timer Operation Control

Timer Setting Availability

Lists available timer settings per product model.

Program Timer Function

Explains using ON and OFF timers in combination.

Sleep Timer Operation

Details how the sleep timer adjusts settings in cooling and heating modes.

Operational Controls and Features

Electronic Expansion Valve Control

Explains control of the electronic expansion valve.

Test Operation Control

Describes how to perform test operations.

Prevent to Restart for 3 Minutes

Explains the 3-minute restart prevention feature.

Auto Restart Function

Details the auto restart feature after power interruption.

Manual Auto Operation

Explains manual auto operation without remote control.

Forced Cooling Operation

Details how to initiate forced cooling operation.

Compressor Preheating

Describes the compressor preheating function.

Coil Dry and Air Clean Operation

Explains coil dry and air clean functions.

Defrost Operation Control

Defrost Start Conditions

Specifies conditions for initiating defrost operation.

Defrost Completion Conditions

Outlines conditions for ending defrost operation.

Defrost Flow Chart

Visualizes the defrosting process based on time and temperature.

Off Defrost Operation Control

Off Defrost Operation Conditions

Specifies conditions for automatic defrost when heating stops.

Off Defrost End Conditions

Details when the off defrost operation is released.

Various Protection Controls

Discharge Gas Temperature Overrise Prevention

Prevents damage from high discharge gas temperatures.

Current Release Control

Controls compressor frequency to prevent exceeding current limits.

Antifreezing Control (Cooling/Dry)

Prevents indoor heat exchanger freezing in cooling/dry modes.

Cooling Pressure Overrise Protection

Protects against high cooling pressure by stopping the compressor.

High Temperature Release Control (Heating)

Controls compressor frequency based on indoor heat exchanger temperature in heating.

Refrigerant Caution R410A

R410A Refrigerant Overview

Introduces the R410A refrigerant used in the unit.

R410A Tools and Equipment

Lists essential tools for handling R410A refrigerant.

Installation Precautions for R410A

Details piping material, thickness, and flare nut specifications.

R410A Handling and Charging Precautions

Emphasizes avoiding moisture, contamination, and proper air purging.

Servicing Precautions for R410A

Highlights differences in refrigerant oil types and handling.

New Refrigerant R410A Information

Explains the Montreal protocol phase-out schedule for refrigerants.

Refrigerant Properties and Classifications

Compares characteristics like boiling point, pressure, and ODP.

R410A vs R407C Comparison and R410A Pressure Data

Summarizes advantages and disadvantages of R410A vs R407C.

R410A vs R22 Model Differences and Precautions

Covers precautions for major components when using R410A.

Troubleshooting Guide

Unit Not Operating Troubleshooting

Addresses issues when the unit fails to operate.

Self-Diagnosis Function Overview

Introduces the self-diagnosis system for error detection.

Troubleshooting Methods

Lists general troubleshooting approaches.

Troubleshooting Unit Not Operating

Provides specific checks for unit start-up failures.

Checking Voltage and PCB

Guides on voltage checks and PCB diagnosis for non-operation.

Self-Diagnosis Function Operation

Explains how to read and interpret self-diagnosis error indications.

Erasing Self-Diagnosis Memory

Details the procedure to clear stored diagnostic information.

Self-Diagnosis Error Codes and Checks (1)

Covers errors related to serial data transfer between units.

Thermistor Error Diagnosis

Explains diagnosis for room and indoor heat exchanger thermistor errors.

Self-Diagnosis Error Codes and Checks (2)

Covers errors for outdoor thermistors, main relay, and power frequency.

Outdoor Temperature Thermistor Error

Diagnoses issues with the outdoor temperature thermistor.

Self-Diagnosis Error Codes and Checks (3)

Addresses errors for air clean, IPM, CT, compressor location, and fan.

IPM and Compressor Location Error Checks

Details checks for IPM protection and compressor location errors.

Self-Diagnosis Error Codes and Checks (4)

Covers indoor fan speed errors and discharge temperature errors.

High Pressure and PFC Circuit Errors

Addresses high pressure protection and PFC circuit errors.

Serial Signal Receiving Error Diagnosis

Guides on checking the indoor unit for communication errors.

Outdoor Unit Serial Signal Check

Guides on checking the outdoor unit for communication errors.

IPM Protection Troubleshooting

Lists points to check for IPM protection issues.

IPM Protection Check Steps

Details step-by-step procedures for diagnosing IPM protection.

Defective Component Diagnosis Table

Table identifying potential causes for refrigerant cycle issues.

Compressor Failure Troubleshooting

Provides methods to check for compressor failure.

EEV and Thermistor Troubleshooting

Explains how to check EEV and thermistor functionality.

Appending Data

Jumper Settings and Auto Restart

Details jumper settings for indoor and outdoor units.

Outdoor Unit Performance Curves (Cooling)

Presents cooling performance graphs for specific models.

Outdoor Unit Performance Curves (Heating)

Shows heating performance graphs for specific models.

Thermistor Resistance Values

Provides detailed resistance values for various thermistors.

Model Capacity and Input Data Graphs

Shows capacity and input data graphs for different models.

Replacement Parts Information

Indoor Unit Replacement Parts (ASYA/ASYB)

Shows exploded views of indoor unit parts for specific models.

Outdoor Unit Replacement Parts (AOYR/AOYS)

Displays exploded views of outdoor unit parts for specific models.

Wiring and Lead Connections

Illustrates wiring regulations and connections for outdoor units.

Installation Manual

General Installation Precautions

Covers general safety, authorized personnel, and piping limits.

Standard Accessories and Electrical Requirements

Lists supplied accessories and electrical installation requirements.

Mounting Position Selection

Guides on choosing suitable locations for indoor and outdoor units.

Installation Diagrams and Panel Removal

Shows unit placement diagrams and procedures for panel removal.

Piping, Wiring, and Finishing

Details piping, wiring, and finishing steps for installation.

Air Purge and Test Running

Explains air purging procedures and final test running.

Pump Down Operation

Describes the procedure for refrigerant recovery.

Related product manuals

Fujitsu AOYR14LCC User Manual

Table of Contents

Other manuals for Fujitsu AOYR14LCC

Questions and Answers:

Fujitsu AOYR14LCC Specifications

Summary

Service Instruction Manual

Split Type Air Conditioner Overview

Product Specifications

Indoor and Outdoor Unit Specifications

Model-Specific Specifications

Additional Model Specifications

Unit Dimensions

Indoor Unit Dimensions

Outdoor Unit Dimensions

Dimensions for Specific Model Series

Dimensions for ASYB/AOYS Models

Dimensions for ASYA14/18LCC Models

Refrigerant System Diagrams

System Diagram for ASYA/AOYR 07/09LCC

System Diagram for ASYA12/ASYB/AOYS Models

System Diagram for ASYA14/18LCC Models

Circuit Diagrams

Circuit Diagram for ASYA/AOYR 07/09LCC

Circuit Diagram for ASYA12LCC

Circuit Diagram for ASYB/AOYS Models

Circuit Diagram for ASYA14/18LCC Models

Control Operation Descriptions

Cooling Operation Control

Heating Operation Control

Dry Operation Control

Auto Changeover Operation

Indoor Fan Control

Indoor Fan Speed Settings

Fan Operation Modes

Cooling, Dry, Heating Fan Modes

Cool Air Prevention Control

Outdoor Fan Control

Outdoor Fan Motor Types

Outdoor Fan Speed Control

Louver Control

Vertical Louver Control

Swing Operation

Compressor Control

Compressor Operation Frequency Range

Compressor Start-up Frequency Control

Timer Operation Control

Timer Setting Availability

Program Timer Function

Sleep Timer Operation

Operational Controls and Features

Electronic Expansion Valve Control

Test Operation Control

Prevent to Restart for 3 Minutes

Auto Restart Function

Manual Auto Operation

Forced Cooling Operation

Compressor Preheating

Coil Dry and Air Clean Operation

Defrost Operation Control

Defrost Start Conditions

Defrost Completion Conditions

Defrost Flow Chart

Off Defrost Operation Control

Off Defrost Operation Conditions

Off Defrost End Conditions

Various Protection Controls

Discharge Gas Temperature Overrise Prevention

Current Release Control

Antifreezing Control (Cooling/Dry)

Cooling Pressure Overrise Protection

High Temperature Release Control (Heating)

Refrigerant Caution R410A

R410A Refrigerant Overview

R410A Tools and Equipment

Installation Precautions for R410A

R410A Handling and Charging Precautions

Servicing Precautions for R410A

New Refrigerant R410A Information

Refrigerant Properties and Classifications