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| Style | Split-type |
|---|---|
| Color | White |
| Features | - |
| Cooling Capacity | Rated: 2.637 kW |
| Min/Max: 0.50-3.20 kW | 1700-10900 BTU/h |
| Min/Max Cooling 2.20/8.00 kW? | 9.5 (2.8 - 11.2) kW |
| 2.80 (0.84-3.28) kW | 76 |
| 22.40 kW | 7.80/7.70 kW |
| 26 | 600/26 |
| Cooling Temperature: 0 - 115 F | 2.64 (1.30 ~ 2.78) kW |
| 9 | 000 (4 |
| 2 | 270 (1 |
| Heating Capacity | Rated: 3.516 kW |
| Min/Max: 0.50-4.40 kW | 1700-15000 BTU/h |
| Min/Max Heating 1.90/9.00 kW? | 10.8 (2.7 - 12.7) kW |
| 25.20 kW | - |
| heating Temperature: -4 - 75 F | - |
| Moisture Removal | 2.75 (1.3) pints/h (l/h) |
| Fan Airflow Rate | Cooling/Heating: High Speed 441(750) CFM (m^3/h) |
| High / Mid / Low: [CMH] (C) 1050/954/858 (H) 1050/954/858 CMH | Indoor (Cooling): High 1850 m³/h |
| Outdoor (Cooling): High 3750 m³/h | Qlo: 5.5 m3/min |
| SHi: 11.7 m3/min | HEAT PUMP & HEAT RECOVERY |
| 635 cfm | 182 - 294 CFM |
| SL: 138 (3.9) cfm (m³/min) | Indoor (Cooling): High 1870 m³/h |
| Operation Temperature Range | Cooling: 64 to 90 (18 to 32) F(C) |
| Heating: 88 (30) or less | Cooling: 23 ~ 118 F; |
| Heating: -4 ~ 75 F | - |
| Heating: -15 to 24 °C | Indoor: 16-32 °C |
| Outdoor: 16-43 °C | Cooling (?): 10.0 ~ 45.0 ? |
| Heating (?): 10.0 ~ 45.0 ? | - |
| Sound Pressure Level | Cooling/Heating 43 dB(A) |
| Indoor (Heating): High 44 dB(A) | Middle 40 dB(A) |
| Refrigerant Type | R410a |
| Refrigerant Charge | 1 lb 14 oz |
| Annual Energy Consumption | - |
| Heating: 2904 kWh/a | - |
| Power Input | - |
| Heating: 0.35/2.40/3.95 kW | Cooling: 2.960 kW |
| Heating: 2.880 kW | 760 (225-920) W |
| Heating: 4.12 W | - |
| Frequency | 60 Hz |
| Voltage | 208/230 V |
| Current | 4.2 A |
| Heating: 16.4 A | Cooling: 2.0/11.1/17.0 A |
| Heating: 2.0/10.7/17.0 A | Cooling: 22.60 A |
| Heating: 22.60 A | 3.6 A |
| Heating: 6.60 A | - |
| Battery Life | - |
| Battery Capacity | - |
| Depth | 203 mm |
| Height | 280 mm |
| Width | 790 mm |
| Net Weight | 18 (8) lb (kg) |
Explains compressor frequency control based on room temperature for cooling.
Explains compressor frequency control based on room temperature for heating.
Details compressor frequency control based on room temperature sensor in dry mode.
Describes automatic mode switching based on temperature changes.
Covers fan speed settings, operation modes, and temperature-based control.
Details outdoor fan motor types and speed settings based on zones.
Explains vertical louver adjustments and swing operation.
Covers compressor frequency ranges and startup control procedures.
Explains ON/OFF, program, and sleep timer operations.
Details the control mechanism of the electronic expansion valve.
Outlines the procedure for performing a test operation.
Describes the compressor's 3-minute restart prevention feature.
Explains four-way valve switching during mode transitions.
Details the system's automatic restart function after power loss.
Explains indoor unit operation without a remote control.
Describes the forced cooling operation mode.
Explains the compressor preheating function.
Details the minimum heat operation mode.
Explains the economy operation mode.
Covers conditions for starting and completing defrost operations.
Specifies conditions for off-defrost operation and its completion.
Details various protection controls like discharge gas temp and current release.
Explains error displays on wired remote, outdoor, and indoor units.
Provides detailed troubleshooting steps for specific error codes.
Guides troubleshooting for issues without specific error codes like no power.
Offers diagnostic methods for key components like compressors and motors.
Details configuration of indoor unit settings like filter signs and temperature corrections.
Lists resistance values for indoor and outdoor unit thermistors.
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