Why Fujitsu AOYR09LCC 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 Air Conditioner?
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 AOYR09LCC?
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 AOYR09LCC 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 AOYR09LCC 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 Air Conditioner?
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 AOYR09LCC 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.
Details the system's cooling process, including capacity control based on room and outdoor temperatures.
Explains the heating mode operation, focusing on compressor frequency control.
Describes the dry mode operation, detailing compressor and indoor fan control.
Covers indoor fan speed settings and operation modes for airflow control.
Details compressor operation frequency ranges and start-up control.
Explains conditions for starting and completing defrost operations.
Outlines various protection mechanisms and their control parameters.
Troubleshooting steps for when the unit fails to power on, checking lamps and power supply.
Explains blinking indicators for error detection and how to use the self-diagnosis feature.
General methods for troubleshooting, including signal checks and cycle diagnosis.
Diagnoses issues related to communication errors between indoor and outdoor units.
Details checks for IPM protection faults, including compressor and PCB diagnostics.
Identifies common refrigerant cycle issues and their potential causes.
Configuration settings for indoor and outdoor units using jumpers.
Graphical data showing pressure and current variations with temperature.
Provides resistance values for various thermistors at different temperatures.
Presents capacity and input data charts for different operating conditions.
Illustrations showing exploded views of indoor and outdoor unit components.
Lists the standard parts supplied with the air conditioner for installation.
Specifies electrical connection requirements, including circuit and wiring.
Guidelines for choosing optimal locations for indoor and outdoor unit installation.
Visual representation of unit placement and required clearances.
Instructions for safely removing and reinstalling the unit's front panel.
Details on insulating pipes, sealing gaps, and securing connections after installation.
Specific steps and precautions for installing the outdoor unit securely.
Procedure for removing air from the refrigerant system using a vacuum pump.
Steps for performing operational checks after installation to ensure proper function.
Lists and describes the specialized tools required for R410A refrigerant systems.
General| Cooling Capacity | 2.5 kW |
|---|---|
| Heating Capacity | 3.2 kW |
| Refrigerant | R32 |
| Power Supply | 220-240V, 50Hz |
| Indoor Unit Weight | 9 kg |
| Indoor Unit Noise Level | 21 dB(A) |
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