What to do if Fujitsu Air Conditioner shows serial communication error?
If a serial communication error occurs with your Fujitsu Air Conditioner, it is necessary to have the air conditioning system inspected by authorized service personnel.
General| Type | Split System |
|---|---|
| Cooling Capacity | 9000 BTU/h |
| Refrigerant | R410A |
| Indoor Unit Weight | 9 kg |
| Power Supply | 220-240 V |
| Indoor Unit Noise Level | 21 dB(A) |
| Outdoor Unit Noise Level | 49 dB |
| Outdoor Unit Dimensions (WxHxD) | 660 x 530 x 240 mm |
Details the cooling capacity control based on room temperature and set temperature.
Explains heating capacity control linked to room temperature and compressor frequency.
Describes indoor unit control for dry operation, varying compressor frequency.
Operation mode selection and automatic switching based on temperature changes.
Details indoor fan control functions, modes, and speed settings.
Indoor fan speed adjustment in Heating mode based on room temperature.
Indoor fan speed limitation based on indoor heat exchanger temp. in heating mode.
Indoor fan control in Cooling and Dry modes to prevent moisture return.
Details outdoor fan motor types and speed specifications.
Controls vertical airflow direction and swing operation.
Defines compressor operation frequency ranges and start-up control.
Describes timer functions including ON/OFF, program, and sleep timers.
Adjusts temperature settings automatically during sleep for comfort.
Controls the electronic expansion valve opening based on operating conditions.
Enables a forced operation mode for testing system functions.
Protects the compressor by preventing immediate restart after stopping.
Switching logic for the four-way valve during mode changeovers.
Automatically resumes operation with previous settings after a power interruption.
Allows basic operation control using indoor unit buttons when remote is lost.
Operates in cooling mode regardless of room temperature for 60 minutes.
Heats the compressor before operation to ensure quick warm air discharge.
Maintains a minimum heating temperature setting for comfort.
Optimizes energy saving by adjusting target temperature settings.
Details conditions for starting and completing defrost operations.
Conditions for automatic defrost operation when heating stops.
Details protections against discharge gas temp, current, freezing, and high temp.
General information on error displays and self-diagnosis checks.
Error codes and indications shown on the wired remote controller.
Features for displaying and checking past error code history.
LED flashing patterns indicating errors on the outdoor unit.
Error indications via operation, timer, and economy lamps on the indoor unit.
Detailed troubleshooting steps for specific error codes encountered by the system.
Diagnostic procedures for issues that do not trigger specific error codes.
Information on component identification and troubleshooting related to parts.
Guides for setting filter sign, room temp correction, and auto restart.
Resistance and voltage values for indoor and outdoor unit temperature sensors.
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