Why Fujitsu Air Conditioner shows serial reverse transfer error at starting up operation?
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.
What does main relay error mean on Fujitsu AOYR18LCC?
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.
What causes a room temperature thermistor defective in Fujitsu AOYR18LCC?
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.
What to do if my Fujitsu AOYR18LCC Air Conditioner has indoor fan speed error?
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.
What to do if my Fujitsu AOYR18LCC Air Conditioner has indoor fan lock error?
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.
What causes IPM protection in my Fujitsu AOYR18LCC?
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.
What to do if my Fujitsu AOYR18LCC shows excessive high pressure protection on cooling?
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.
Model details, electrical data, fan motor specs, dimensions, weights, noise, and pipe thickness.
Continuation of specifications for various models.
Continuation of specifications for various models.
Continuation of specifications for various models.
Overall dimensions for indoor and outdoor units.
Continuation of dimensions for ASYA07/09LCC, AOYR07/09LCC.
Continuation of dimensions for ASYA12LCC, AOYR12LCC.
Continuation of dimensions for ASYB09/12LDC, AOYS09/12LDC.
Continuation of dimensions for ASYA14/18LCC, AOYR14/18LCC.
Diagrams illustrating the refrigerant flow for different model groups.
Diagram for ASYA07/09LCC, AOYR07/09LCC.
Diagram for ASYA12LCC, AOYR12LCC, ASYB09/12LDC, AOYS09/12LDC.
Diagram for ASYA14/18LCC, AOYR14/18LCC.
Electrical wiring diagrams for various model series.
Diagram for ASYA07LCC / AOYR07LCC, ASYA09LCC / AOYR09LCC.
Diagram for ASYA12LCC / AOYR12LCC.
Diagram for ASYB09LDC / AOYS09LDC, ASYB12LDC / AOYS12LDC.
Diagram for ASYA14LCC / AOYR14LCC, ASYA18LCC / AOYR18LCC.
Controls compressor frequency based on room and outdoor temperatures for optimal cooling.
Controls compressor frequency based on room and outdoor temperatures for optimal heating.
Manages compressor frequency and indoor fan for dry operation mode.
Automatically switches between modes based on temperature.
Details fan speed settings and operation for different modes.
Controls indoor fan speed to prevent cold air during heating mode.
Adjusts set temperature automatically during sleep timer operation.
Manages the electronic expansion valve opening based on system conditions.
Procedure for running the unit in a test mode for diagnostics.
Safety feature preventing rapid compressor restarts.
Control logic for the four-way valve.
Function to resume operation with previous settings after power interruption.
Allows basic operation via indoor unit buttons when remote is unavailable.
Initiates cooling operation regardless of room temperature for quick cooling.
Heats the compressor to improve warm air discharge upon startup.
Controls for coil drying and air purification functions.
Illustrates the conditions and sequence for defrost operation.
Prevents indoor heat exchanger freezing by adjusting compressor frequency.
Stops compressor if high pressure is detected during cooling.
Reduces compressor frequency based on indoor heat exchanger temperature in heating.
Lists and describes specialized tools required for R410A refrigerant handling.
Important considerations for installing systems with R410A refrigerant.
Details proper procedures for handling moisture, air, refrigerant, and compressor oil.
Precautions for servicing units using new refrigerants compared to older ones.
Information on R410A, its phase-out schedule, and HFC properties.
Explains ozone depletion, defines CFC/HCFC/HFC, and compares refrigerant properties.
Compares R407C and R410A, and provides R410A pressure/temperature data.
Troubleshooting guide for a unit that does not operate at all.
Explains the self-diagnosis function and how to read error indications.
Procedures to diagnose and resolve serial signal receiving errors.
Identifies causes and checks for IPM protection faults in the outdoor unit.
Diagnostic table and methods for refrigerant cycle related issues.
Instructions for setting indoor and outdoor unit jumper configurations.
Presents cooling and heating performance data curves for specific models.
Continuation of performance curves for heating mode.
Continuation of performance curves for cooling mode.
Continuation of performance curves for heating mode.
Continuation of performance curves for cooling mode.
Continuation of performance curves for heating mode.
Tables and graphs showing thermistor resistance versus temperature.
Heating capacity and input data curves for ASYA09LCC.
Cooling capacity and input data curves for ASYA09LCC.
Heating capacity and input data curves for ASYA12LCC.
Cooling capacity and input data curves for ASYA12LCC.
Heating capacity and input data curves for ASYA18LCC.
Cooling capacity and input data curves for ASYA18LCC.
Heating capacity and input data curves for ASYB09LDC.
Cooling capacity and input data curves for ASYB09LDC.
Heating capacity and input data curves for ASYB12LDC.
Cooling capacity and input data curves for ASYB12LDC.
Exploded views of internal components for various models.
Continuation of exploded views for indoor units.
Continuation of exploded views for outdoor units.
Continuation of exploded views for outdoor units.
Continuation of exploded views for outdoor units.
Continuation of exploded views for indoor units.
Continuation of exploded views for indoor units.
Continuation of exploded views for outdoor units.
Continuation of exploded views for indoor units.
Continuation of exploded views for indoor units.
Continuation of exploded views for outdoor units.
Continuation of exploded views for outdoor units.
Continuation of exploded views for indoor units.
Continuation of exploded views for indoor units.
Continuation of exploded views for outdoor units.
Wiring lead wire process for AOYR07/09LCC.
Connection of leads to inverter assy for AOYR07/09LCC.
Shaping of leads to inverter assy for AOYR07/09LCC.
Cross-sectional views of lead wire routing.
Attachment of inverter assy for AOYR14/18LCC.
Lead connections to inverter assy for AOYR14/18LCC.
Lead routing for inverter assy for AOYR14/18LCC.
Lead fixing for thermistor and motor for AOYR14/18LCC.
Essential guidelines, electrical needs, and mounting position guidelines for installation.
Lists standard parts supplied with the unit for installation.
Guidelines for choosing optimal indoor and outdoor unit locations.
Detailed steps for installing the indoor unit, including bracket mounting.
Detailed steps for installing the outdoor unit, including mounting and securing.
Steps for connecting pipes, hoses, wiring, and finishing the installation.
Steps to verify correct operation after installation.
Covers general warnings, specialized tools, and copper pipe specifications for R410A.
Procedures to remove air from the refrigerant system using a vacuum pump.
General| Brand | Fujitsu |
|---|---|
| Model | AOYR18LCC |
| Category | Air Conditioner |
| Language | English |
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