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Fujitsu ABT18LB - User Manual

Fujitsu ABT18LB
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P/N9374319015
Indoor Unit
ABT18LB
ABT24LB
Outdoor Unit
AOT18LM
AOT24LM
AIR CONDITIONER
FLOOR CONSOLE/
UNDER CEILING DUAL TYPE
OPERATING MANUAL
KEEP THIS MANUAL
FOR FUTURE REFERENCE
FUJITSU GENERAL LIMITED

Table of Contents

Questions and Answers

  • M
    mark44Aug 20, 2025
    Why is my Fujitsu Air Conditioner not cooling well?
    • D
      danielestesAug 20, 2025
      Poor cooling performance can occur for several reasons: * Check if the air filter is dirty. * Ensure that the air conditioner's intake grille or outlet port isn't blocked. * Verify that you've correctly adjusted the room temperature settings (thermostat). * Make sure no windows or doors are open. * If it's during cooling operation, check if sunlight is entering the room and close the curtains. Also, consider if there are heating appliances, computers, or too many people in the room.
  • D
    dphamAug 22, 2025
    Why is my Fujitsu ABT18LB Air Conditioner cooling (or heating) poorly?
    • S
      Scott HillAug 22, 2025
      Poor cooling or heating performance in your Fujitsu Air Conditioner can be due to several factors. Check if the air filter is dirty, or if the air conditioner's intake grille or outlet port is blocked. Ensure the room temperature settings (thermostat) are correctly adjusted and that no windows or doors are open. If cooling, close curtains to block bright sunlight. Also, consider if there are too many people or heat-generating devices in the room.
  • A
    Alexandra MillerAug 25, 2025
    Why doesn't my Fujitsu ABT18LB Air Conditioner operate immediately after turning it on?
    • M
      Mark KingAug 25, 2025
      Your Fujitsu Air Conditioner may not operate immediately due to a built-in protection mechanism. If the unit was recently stopped and restarted, the compressor might not operate for about 3 minutes to prevent fuse issues. Also, if the power supply plug was disconnected and reconnected, the protection circuit will prevent operation for about 3 minutes.
  • J
    Jack PonceAug 26, 2025
    Why is water coming from the outdoor unit of my Fujitsu ABT18LB?
    • M
      Mary NewtonAug 26, 2025
      Water may be produced from the outdoor unit of your Fujitsu Air Conditioner during heating operation due to the automatic defrosting operation.
  • J
    Jessica DennisAug 28, 2025
    Why is my Fujitsu ABT18LB Air Conditioner unit operating differently from the remote control setting?
    • R
      Rhonda PayneAug 28, 2025
      If the unit operates differently from the remote control's setting, check if the remote control's batteries are dead or if the batteries are loaded properly.
  • J
    Jason EllisAug 30, 2025
    What to do if I don't receive a signal after replacing the batteries in my Fujitsu Air Conditioner remote?
    • J
      Jody ChavezAug 30, 2025
      If you don't receive a signal after replacing the batteries, check if you are using an air conditioner signal code other than signal code A.
  • H
    Hunter MillerSep 1, 2025
    How to fix a Fujitsu ABT18LB Air Conditioner that doesn’t operate immediately?
    • A
      Adam Mejia VSep 1, 2025
      If the unit is stopped and then immediately started again, the compressor will not operate for about 3 minutes, in order to prevent fuse blowouts. Whenever the power supply plug is disconnected and then reconnected to a power outlet, the protection circuit will operate for about 3 minutes, preventing unit operation during that period.
  • N
    Nathan MeyerSep 3, 2025
    Why is the airflow weak or stopping in my Fujitsu ABT18LB?
    • A
      Alec GonzalezSep 3, 2025
      Weak or stopped airflow in your Fujitsu Air Conditioner can occur for several reasons. When heating starts, the fan speed is temporarily very low to allow internal parts to warm up. During heating, if the room temperature exceeds the thermostat setting, the outdoor unit will stop, and the indoor unit will operate at a very low fan speed. Also, during heating, the unit may temporarily stop for 7 to 15 minutes for automatic defrosting. The fan may operate at a very low speed during Dry operation or when the unit monitors the room's temperature, and in monitor AUTO operation, the fan will operate at a very low speed.
  • D
    Devin McintoshSep 5, 2025
    What to do if my Fujitsu ABT18LB doesn't operate at all?
    • A
      andersonrachelSep 5, 2025
      If your Fujitsu Air Conditioner isn't operating, check the following: * Has there been a power failure? * Has a fuse blown out, or a circuit breaker been tripped? * Is the timer operating?
  • R
    Ryan SanchezSep 7, 2025
    Why is the airflow weak on my Fujitsu ABT18LB Air Conditioner?
    • L
      Lisa LawsonSep 7, 2025
      Weak or absent airflow can occur in your Fujitsu Air Conditioner due to several reasons. When heating operation is started, fan speed is temporarily very low, to allow internal parts to warm up. During heating operation, if the room temperature rises above the thermostat setting, the outdoor unit will stop, and the indoor unit will operate at very low fan speed. If you wish to warm the room further, set the thermostat to a higher setting. During heating operation, the unit will temporarily stop operation (between 7 and 15 minutes) as the Automatic Defrosting mode operates. The fan may operate at very low speed during Dry operation or when the unit is monitoring the room’s temperature. In the monitor AUTO operation, the fan will operate at very low speed.

Fujitsu ABT18LB Specifications

General IconGeneral
Voltage208/230V
Heating Capacity18000 BTU
Energy Efficiency Ratio (Cooling)12.5
RefrigerantR410A
Indoor Unit Weight26.5 lbs
Outdoor Unit Weight88.2 lbs
Cooling Capacity (BTU)18000 BTU
SEER18.0
Cooling Capacity18000 BTU
Power Supply1 Phase, 60Hz

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