Fujitsu ASYG09KMCDN Operation Manual page 15

Poor cooling or heating performance.
□ Is the unit operating under the conditions except the permissible
temperature range?
In this case, the air conditioner may stop because of the automatic
protection circuit working.
□ Is the air filter dirty?
⇒ Clean the air filter. (Refer to page 11.)
□ Is the intake grille or outlet port of indoor unit blocked?
⇒ Remove the obstructions.
□ Is the room temperature adjusted appropriately?
⇒ To change the temperature setting, refer to page 5.
□ Is a window or door left opened?
⇒ Close the window or the door.
□ Is the fan speed set to Quiet?
⇒ To change the fan speed, refer to page 5.
□ Has the Outdoor Unit Low Noise operation been set?
⇒ To stop the Outdoor Unit Low Noise operation, refer to page 7.
□ <In the Cooling mode> Is direct or strong sunlight shining into the
room?
⇒ Close the curtains.
□ <In the Cooling mode> Are there other heating apparatus or com-
puters operating, or too many people in the room?
⇒ Turn the heating apparatus or computers off, or set the tem-
perature lower. (Refer to page 5.)
Airflow is weak or stops.
□ Is the fan speed set to Quiet?
⇒ To change the fan speed, refer to page 5.
□ <In the Heating mode> Have you just started the operation?
In this case, the fan rotates at very low speed temporarily to warm
up the internal parts of the unit.
□ <In the Heating mode> Is the room temperature higher than the
set temperature?
In this case, the outdoor unit stops and the indoor unit fan rotates
at very low speed.
□ <In the Heating mode> Is [ ] indicator blinking?
In this case, the Automatic defrosting operation is working. The in-
door unit stops for maximum of 15 minutes. (Refer to page 13.)
□ <In the Dry mode> The indoor unit operates at low fan speed to
adjust the room humidity, and may stop from time to time.
□ <In the Auto mode> While the monitoring operation, the fan
rotates at very low speed.
Noise is heard.
□ Is the unit operating, or immediate after stopping operation?
In this case, refrigerant flowing sound may be heard. It may be
particularly noticeable for 2-3 minutes after starting operation.
□ Do you hear a slight squeaking sound during the operation?
This sound is produced by the minute expansion and contraction
of the front panel caused by temperature change.
□ <In the Heating mode> Do you hear a sizzling sound?
This sound is produced by the Automatic defrosting operation.
(Refer to page 13.)
Smell coming from the unit.
□ The air conditioner may absorb various smells generated from
interior textile, furniture, or cigarette smoke. These smells may be
emitted during the operation.
Mist or steam is emitted from the unit.
□ <In the Cooling or Dry mode> A thin mist may be generated by
condensation formed with sudden cooling process.
□ <In the Heating mode> Is [ ] indicator on the indoor unit blinking?
In this case, steam may rise from the outdoor unit because of the
Automatic defrosting operation.(Refer to page 13.)
Outdoor unit emits water.
□ <In the Heating mode> The outdoor unit may emit water gener-
ated by the Automatic defrosting operation. (Refer to page 13.)
The unit operates differently from the remote controller setting.
□ Are the batteries in the remote controller exhausted?
⇒ Replace the batteries.
Operation is delayed after restart.
□ Has the power supply turned from Off to On suddenly?
In this case, the compressor will not operate for about 3 minutes
to prevent a blowout of the fuse.
The mobile app does not work.
□ Check that the version of the OS on your mobile device is sup-
ported.
⇒ Refer to "App Store" or "Google Play".
I have not received the e-mail when registering my account
□ Set the domain permissions so that it is not rejected as spam.
The method of registering additional users is unclear
□ You can only register 1 Email address and password per WLAN
adapter. Use the same Email address and password for other us-
ers to operate through the same WLAN adapter.
The method of registering additional air conditioners is unclear
□ To register additional air conditioners, repeat the setup of the
chosen mode in "9.2. Setting to use wireless LAN control" for each
air conditioner.
Wireless LAN setup is not possible
□ Check that your wireless router supports "WPS function". (Button
mode)
□ Check if there was any previous owner using this wireless LAN
control. If there was a previous owner, please contact authorized
service personnel.
Wireless LAN setup is not possible (The connection settings of
the WLAN adapter and router are not complete)
□ Check that your wireless router supports "IEEE802.11b/g/n".
(Check with the operating manual of the wireless router.)
□ Check that the WLAN adapter of the indoor unit is on.
I am not able to operate this product from the mobile app
□ Check that the power to the indoor unit is on.
□ Check that the power to the wireless router is on.
□ Check that your smartphone is not in flight mode.
□ Check that you are not in a place where it is difficult to make a
connection with radio waves.
Immediately stop operation and turn off the electrical breaker in
following cases. Then consult authorized service personnel.
• The problem persists even if you perform these checks or
diagnostics.
• On the indoor unit, [ ] and [
NOTES: For any troubleshooting related to the WLAN control, refer
to the setting manual for WLAN adapter or the mobile app
installed in your smartphone or tablet PC.
] blink while [ ] is blinking fast.
En-14