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Fujitsu AS*A09LKC - User Manual

Fujitsu AS*A09LKC
60 pages
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SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
type
Models Indoor unit Outdoor unit
AS*A09LKC
AS*A12LKC
AO*R09LKC
AO*R12LKC
INVERTER
SERVICE
INSTRUCTION
R410A

Table of Contents

Other manuals for Fujitsu AS*A09LKC

Preview: Design & Technical Manual
Design & Technical Manual38 pages

Questions and Answers

  • J
    Jeffrey CrawfordAug 18, 2025
    Why is my Fujitsu AS*A09LKC Air Conditioner not cooling or heating?
    • E
      ekleinAug 18, 2025
      There are several reasons why your Fujitsu Air Conditioner might not be cooling or heating: * There may be an indoor unit error, so it is recommended to check the indoor unit. * There may be an outdoor unit error, so check the outdoor unit operation. * The surrounding environment may be affecting the unit, check if any windows are open or if there is direct sunlight. * There may be a connection pipe or wire failure, so check the connection pipe. * There may be a refrigeration cycle failure, so check if the strainer is clogged.
  • M
    Meagan HayesAug 20, 2025
    What causes water leaking from Fujitsu AS*A09LKC?
    • L
      Lori HoodAug 20, 2025
      If your Fujitsu air conditioner is leaking water, consider these potential causes: * Check if the filter is clogged. * If water is spitting out, check the gas pressure and correct it if there was a gas leak.
  • R
    Rhonda CortezAug 23, 2025
    What to do if my Fujitsu Air Conditioner is not operating but the power is on?
    • J
      Jennifer RobinsonAug 23, 2025
      If your Fujitsu Air Conditioner is on but not operating, here are some things to check: * Inspect for incorrect wiring between the indoor unit and the remote controller, as there may be a setting or connection failure. * Check for any equipment causing harmonic wave near the electric line, as there may be an external cause. * Check the voltage at CN8 on the Controller PCB, as there may be a defective electrical component.
  • D
    dellisonAug 26, 2025
    What to do if my Fujitsu AS*A09LKC Air Conditioner indoor unit has no power?
    • M
      mmckinneyAug 26, 2025
      If your Fujitsu Air Conditioner indoor unit has no power, consider the following: * Check for a loose or removed connection cable, as there may be a power supply failure. * Inspect for any equipment causing harmonic wave near the electric line, as there may be an external cause. * Check the voltage of the power supply, as there may be defective electrical components.
  • M
    Mary HodgesAug 28, 2025
    What to do if my Fujitsu Air Conditioner outdoor unit has no power?
    • J
      Janice EvansAug 28, 2025
      If your Fujitsu Air Conditioner outdoor unit has no power, consider the following: * Check for a loose or removed connection cable, as there may be a power supply failure. * Inspect for any equipment causing harmonic wave near the electric line, as there may be an external cause. * Check the voltage of the power supply, as there may be defective electrical components.
  • T
    tiffany84Aug 30, 2025
    How to fix a Fujitsu Air Conditioner that makes abnormal noise?
    • T
      Tyler HolmesAug 30, 2025
      To address abnormal noise coming from your Fujitsu Air Conditioner: * Ensure the main unit is installed in a stable condition, as the noise could be due to erroneous installation. * Check if the fan is broken or deformed, as the noise could be due to fan failure. * Check the compressor, as the noise could be due to compressor failure.
  • G
    geoffreyschmidtSep 2, 2025
    What to do if Fujitsu AS*A09LKC displays INDOOR UNIT Error Method: Room Temperature Thermistor Error?
    • A
      anthonymunozSep 2, 2025
      If your Fujitsu Air Conditioner displays an error related to the room temperature thermistor, take the following steps: * Check if the connector is removed or erroneously connected, and ensure the thermistor cable is not open, as there may be a connector connection failure. * If the thermistor is open or shorted, replace it and reset the power, as there may be a thermistor failure. * Make sure circuit diagram of indoor unit and check terminal voltage at thermistor (DC5.0V), as there may be a controller PCB failure.
  • J
    Jose PriceSep 4, 2025
    What to do if Fujitsu AS*A09LKC displays INDOOR UNIT Error Method: Indoor Heat Exchanger Temperature Thermistor (Middle) Error?
    • C
      Charles ButlerSep 4, 2025
      If your Fujitsu Air Conditioner displays an error related to the indoor heat exchanger temperature thermistor, take the following steps: * Check if the connector is removed or erroneously connected, and ensure the thermistor cable is not open, as there may be a connector connection failure. * If the thermistor is open or shorted, replace it and reset the power, as there may be a thermistor failure. * Make sure circuit diagram of indoor unit and check terminal voltage at thermistor (DC5.0V), as there may be a controller PCB failure.
  • W
    william60Sep 7, 2025
    What to do if Fujitsu AS*A09LKC Air Conditioner displays OUTDOOR UNIT Error Method: Outdoor Discharge Pipe Temperature Thermistor Error?
    • K
      Krista SmithSep 7, 2025
      If your Fujitsu Air Conditioner displays an error related to the outdoor discharge pipe temperature thermistor, take the following steps: * Check if the connector is removed or erroneously connected, and ensure the thermistor cable is not open, as there may be a connector connection failure. * If the thermistor is open or shorted, replace it and reset the power, as there may be a thermistor failure.
  • D
    Daniel ValdezSep 9, 2025
    What to do if Fujitsu AS*A09LKC displays INDOOR UNIT Error Method: Wired Remote Controller Error?
    • N
      Nicholas RomanSep 9, 2025
      If your Fujitsu Air Conditioner displays an error related to the wired remote controller, take the following steps: * Check the connection of terminal between Wired Remote Controller and indoor unit, as there may be a connection failure. * If it is DC12V, replace Wired Remote Controller (Option), as there may be Wired Remote Controller failure. * If it is DC 0V, replace Controller PCB, as there may be a controller PCB failure.

Summary

DESCRIPTION OF EACH CONTROL OPERATION

COOLING OPERATION

Details how the compressor frequency is controlled based on room and outdoor temperatures.

HEATING OPERATION

Explains compressor frequency control for heating based on temperature differences.

AUTO CHANGEOVER OPERATION

COMPRESSOR CONTROL

Details compressor operation frequency ranges and start-up control.

ELECTRONIC EXPANSION VALVE CONTROL

TEST OPERATION CONTROL

DEFROST OPERATION CONTROL

Explains the conditions for starting and completing defrost operation.

OFF DEFROST OPERATION CONTROL

VARIOUS PROTECTIONS

Details discharge gas temperature and current release protection controls.

TROUBLE SHOOTING

ERROR DISPLAY

Details error codes, blinking patterns for indoor/wired remotes, and specific error scenarios.

TROUBLESHOOTING WITH ERROR CODE

Provides step-by-step troubleshooting for specific error codes, starting with Serial Error.

TROUBLESHOOTING WITH NO ERROR CODE

Offers troubleshooting steps for issues where no error code is displayed, like "No Power".

ABNORMAL NOISE

WATER LEAKING

SERVICE PARTS INFORMATION

COMPRESSOR PARTS INFORMATION

Details diagnostic methods for compressor issues like startup failure, stopping, or noise.

INVERTER COMPRESSOR PARTS

EEV PARTS INFORMATION

Fujitsu AS*A09LKC Specifications

General IconGeneral
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
Power Supply220-240 V, 50 Hz
RefrigerantR32
Indoor Unit Weight9 kg
Energy Efficiency Class (Cooling)A++
Energy Efficiency Class (Heating)A+

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