Fujitsu AOU36 - Service Manual

Other manuals for Fujitsu AOU36

Operating Manual18 pages

Questions and Answers

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Nancy GrayAug 14, 2025
Why is my Fujitsu Air Conditioner cooling or heating poorly?
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  Lori MartinAug 14, 2025
  Poor cooling or heating performance in your Fujitsu Air Conditioner can stem from several factors. Check if the air filter is dirty, or if the air intake grille or outlet port is blocked. Ensure that the room temperature settings (thermostat) are correctly adjusted. Also, check for open windows or doors. If it's cooling operation, consider whether bright sunlight is entering the room (close the curtains). Finally, evaluate if there are heating appliances or too many people in the room, affecting the cooling performance.
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Katrina SantosAug 17, 2025
What to do if my Fujitsu AOU36 Air Conditioner doesn’t operate at all?
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  Melissa HebertAug 17, 2025
  If your Fujitsu Air Conditioner doesn't operate at all, check the following: Ensure the power supply plug is correctly connected to the outlet. Verify whether there has been a power failure. Inspect the fuse to see if it has blown out, or check if a circuit breaker has been tripped. Also, make sure the timer isn't running.
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Benjamin HowardAug 20, 2025
Why is water coming from my Fujitsu Air Conditioner outdoor unit?
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  Steve PearsonAug 20, 2025
  During heating operation, water may be produced by the outdoor unit of your Fujitsu Air Conditioner due to the automatic defrosting operation.
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zgomezAug 25, 2025
Why is the airflow weak on my Fujitsu Air Conditioner?
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  Gina MillsAug 25, 2025
  If the airflow from your Fujitsu Air Conditioner is weak or stops, it could be due to 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. The unit might also temporarily stop (for 7-15 minutes) for automatic defrosting, during which the OPERATION indicator light will flash. The fan may also operate at very low speed during dry operation or when the unit is monitoring room temperature. Finally, in monitor AUTO operation, the fan runs at a very low speed.
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Kimberly WattsAug 27, 2025
Why Fujitsu AOU36 Air Conditioner operates differently from the remote control unit’s setting?
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  Bruce ReedAug 27, 2025
  If your Fujitsu Air Conditioner unit isn't operating according to the remote control's settings, check if the remote control's batteries are dead or if they are loaded improperly.
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James CantrellAug 30, 2025
What is that noise coming from my Fujitsu AOU36?
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  ericbarnesAug 30, 2025
  The noise you hear from your Fujitsu Air Conditioner could be due to a few reasons. During and immediately after operation, the sound of water flowing in the air conditioner’s piping might be audible. A slight squeaking sound might occur during operation due to minute expansion and contraction of the front cover from temperature changes. During heating, a swoosh sound may occasionally be heard, which is produced by the automatic defrosting operation.
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Aaron MurilloSep 2, 2025
Why is my Fujitsu AOU36 emitting mist or steam?
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  Eileen AndradeSep 3, 2025
  The mist or steam emitted from your Fujitsu Air Conditioner can occur for the following reasons: During cooling or dry operation, a thin mist may be seen due to the sudden cooling of room air, resulting in condensation. During heating, the outdoor unit’s fan may stop, and steam may rise from the unit due to automatic defrosting operation.
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brandy76Sep 6, 2025
Why does my Fujitsu Air Conditioner smell?
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  Seth McgeeSep 6, 2025
  Occasionally, your Fujitsu Air Conditioner may emit an odor from the indoor unit. This can be due to room odors (from furniture, tobacco, etc.) being drawn into the air conditioner.
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Sarah DennisSep 9, 2025
Why Fujitsu Air Conditioner doesn’t operate immediately?
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  Mr. Bobby SmithSep 9, 2025
  If your Fujitsu Air Conditioner doesn’t operate immediately after being turned on, it could be due to a protective function. If the unit is stopped and then immediately restarted, the compressor will not operate for about 3 minutes to prevent fuse blowouts. Also, whenever the power switch is turned off then on again, the protection circuit will operate for about 3 minutes, preventing unit operation during that period.