Fujitsu AST18AB User Manual

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ROOM AIR CONDITIONER

CEILING WALL TYPE

KEEP THIS OPERATION MANUAL

FOR FUTURE REFERENCE

FUJITSU GENERAL LIMITED

OPERATING MANUAL

Indoor Unit

AWT14RB

AWT18AB

AWT18RB

AWT24AB

AWT24RB

AWT30AB

AWT30RB

Outdoor Unit

AOT14R

AOT18A

AOT18R

AOT24A

AOT24R

AOT30A

AOT30R

P/N9369307010

Table of Contents

Questions and Answers:

P
pamela20Aug 17, 2025
Why is my Fujitsu AST18AB Air Conditioner not cooling well?
- C
  Cathy RiveraAug 17, 2025
  Several factors can impact cooling performance. Check if the air filter is dirty, or if the air conditioner's intake filter or outlet port is blocked. Ensure the thermostat is set correctly and that no windows or doors are open. If it's during cooling operation, close curtains to block direct sunlight. Also, consider if there are heat-generating appliances or too many people in the room.
J
Julie WardAug 20, 2025
Why is water produced from the outdoor unit of my Fujitsu AST18AB?
- P
  Patricia WebsterAug 20, 2025
  During heating operation, water may be produced from the outdoor unit due to automatic defrosting operation.
G
Gina SilvaAug 23, 2025
Why is my Fujitsu AST18AB Air Conditioner unit operating differently from the remote control unit’s setting?
- S
  stacy04Aug 23, 2025
  Check whether the remote control unit’s batteries are dead or if the batteries are loaded properly.

Fujitsu AST18AB Specifications

General

Brand	Fujitsu
Model	AST18AB
Category	Air Conditioner
Language	English

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