To Next PageTo Next PageWhat to do if my Fujitsu AOTS18LDL doesn't operate at all?
If your Fujitsu Air Conditioner doesn't operate, check the following: * Ensure the power supply plug is properly connected to the outlet. * Check for a power failure. * See if a fuse has blown or a circuit breaker has tripped. * Verify the timer is not in operation.
How to improve cooling performance of my Fujitsu AOTS18LDL?
If your Fujitsu Air Conditioner isn't cooling well, check these potential causes: * Ensure the air filter is clean. * Make sure the intake grille or outlet port isn't blocked. * Verify the thermostat is set correctly. * Close any open windows or doors. * During cooling, block direct sunlight with curtains and reduce heat-generating appliances or the number of people in the room. * Check if the unit is set to SUPER QUIET operation.
Why does my Fujitsu Air Conditioner operate differently from the remote control settings?
If your Fujitsu Air Conditioner operates differently from the remote control settings, check if the remote control batteries are dead or loaded properly.
Why doesn't my Fujitsu AOTS18LDL Air Conditioner operate immediately after turning it on?
If your Fujitsu Air Conditioner doesn’t operate immediately after being stopped and restarted, the compressor will not operate for about 3 minutes to prevent fuse blowouts. Also, whenever the Power Supply Plug is disconnected and then re- connected to a power outlet, the protection circuit will operate for about 3 minutes, preventing unit operation during that period.
Why is water being produced from the outdoor unit of my Fujitsu Air Conditioner?
During heating operation, water may be produced from the outdoor unit of your Fujitsu Air Conditioner due to the automatic defrosting operation.
Why is my Fujitsu AOTS18LDL making noise?
You may hear noises from your Fujitsu Air Conditioner due to the following reasons: * The sound of water flowing in the air conditioner’s piping during or immediately after operation is normal. * Coolant flowing may be noticeable for the first 2 to 3 minutes after starting. * A sizzling sound during heating operation is normal and produced by the automatic defrosting operation.
Why is my Fujitsu AOTS18LDL Air Conditioner emitting mist or steam?
Mist or steam may be emitted from your Fujitsu Air Conditioner due to: * During cooling or dry operation, a thin mist may appear because of the rapid cooling of room air, causing condensation. * During heating, steam may rise from the outdoor unit during automatic defrosting, and the fan may stop.
Why is the airflow weak or stopping on my Fujitsu AOTS18LDL Air Conditioner?
Weak or stopped airflow in your Fujitsu Air Conditioner can be due to: * When heating starts, fan speed is temporarily low to warm internal parts. * During heating, if the room is warmer than the thermostat setting, the outdoor unit stops, and the indoor unit operates at very low fan speed. Adjust the thermostat to a higher setting if you want to warm the room further. * The unit temporarily stops for 7-15 minutes during automatic defrosting; the OPERATION Indicator Lamp will flash. * The fan may operate at very low speed during dry operation or when monitoring room temperature. * The fan operates at very low speed during SUPER QUIET operation. * In monitor AUTO operation, the fan operates at very low speed.
What does it mean when the AIR CLEAN Indicator Lamp is flashing quickly on my Fujitsu AOTS18LDL?
If the AIR CLEAN Indicator Lamp on your Fujitsu Air Conditioner flashes quickly, it means that after approximately 500 hours of Air Cleaning Mode use, the Air Cleaning function will stop. To resolve this, stop the system, remove the mains socket, and perform maintenance on the dust collecting unit's air filter.
What to do if the AIR CLEAN Indicator Lamp is flashing slowly on my Fujitsu Air Conditioner?
If the AIR CLEAN Indicator Lamp on your Fujitsu Air Conditioner is flashing slowly, it indicates that approximately 400 hours of Air Cleaning Mode use have passed. Stop the system, remove the mains socket, and carry out maintenance on the dust collecting unit's air filter.
General| Refrigerant | R410A |
|---|---|
| Type | Split Air Conditioner |
| Cooling Capacity | 18, 000 BTU/h |
| Heating Capacity | 18, 000 BTU/h |
| SEER | 18 |
| HSPF | 9.0 |
| Coefficient of Performance (COP) | 3.80 |
| Power Supply | 1 Phase, 60Hz |
| Noise Level (Indoor) | 42 dB |
| Noise Level (Outdoor) | 52 dB |
Explains the use of large power initially for quick temperature setting, then low power for economy.
Dries the indoor unit to prevent mold and restrain bacteria growth.
Automatically swings louvers for wide air distribution to every room corner.
Utilizes air conditioner power to quickly purify the air in the room.
Gradually adjusts thermostat during operation for sleep comfort and automatic shutdown.
Identifies and illustrates the various parts of the indoor air conditioner unit.
Identifies and illustrates the parts of the wireless remote control.
Steps for connecting the power supply and loading batteries into the remote control.
Procedure to set the current time on the remote control unit's clock.
Guidelines for operating the remote control unit, including range and signal reception.
How to choose between COOL, DRY, HEAT, and FAN operating modes.
Adjusting the desired room temperature and fan speed settings.
Activates reduced airflow for quieter operation, suitable for quiet environments.
Unit automatically selects mode based on detected room temperature conditions.
Explains specific operational details for Heating, Cooling, Dry, and Fan modes.
Steps to initiate the air cleaning mode alongside air conditioning.
How to stop the air cleaning function or the entire unit operation.
Important safety notes and usage considerations for the air cleaning function.
How to set a single ON or OFF timer for automatic operation.
Setting sequential ON and OFF timers within a 24-hour period.
Covers canceling, changing, and stopping timer operations.
How to set the sleep timer for automatic temperature adjustment and shutdown.
Explains temperature adjustments during sleep timer operation for comfort.
Covers changing, canceling, and stopping the sleep timer.
How to adjust the up-down airflow direction using the remote control.
Manual adjustment of the left-right louvers for desired airflow direction.
Safety warnings and usage notes for adjusting airflow direction.
Enables automatic up/down movement of the louvres for air distribution.
Explains swing ranges for different operating modes (Cooling, Heating, Fan).
Starts the 30-minute coil drying process to prevent mold and bacteria.
Information on coil dry operation duration, purpose, and limitations.
Operating the unit directly from the main control panel when remote is unavailable.
Step-by-step guide to safely removing and cleaning the air intake grille.
Instructions for removing, cleaning, and reinstalling the air filters.
Explains indicator lamp signals for filter maintenance and cleaning needs.
Steps to clean the dust collection unit and its associated filter.
Guide to properly install or remove the air cleaning and deodorizing filter.
Recommendations for filter replacement intervals and proper storage.
Initial checks for non-operation, noises, smells, mist, steam, and airflow issues.
Interpreting flashing patterns of the air clean indicator lamp for maintenance.
Further checks for poor cooling performance, remote setting discrepancies, and unit operation.
Steps for persistent problems, burning smells, or flashing error lamps, including consulting service.
Explains heating efficiency limitations and the automatic defrosting function.
Details how the unit automatically resumes operation after a power interruption.
Specifies suitable environmental conditions for Cooling, Dry, and Heating modes.
Tips for reducing power consumption and proper shutdown procedures.
