Toyotomi NTN-928R32 User Manual page 10

There is sound of running
water during operation
During turning on or turning
off the air conditioner there is
a cracking sound
Indoor unit makes abnormal
sound
Water drops are over the
surface of the indoor unit
During Cooling operation,
indoor unit outlet sometimes
will blow out mist
Air conditioner stopped
suddenly to operate
Indoor unit does not accept
remote controller's signal
or remote controller does
not work
GB

During turning on or turning off the air conditioner, or when compressor stops and
starts again, the sound of running water may be heard from the indoor unit

This is the sound of refrigerant flow and it is normal

During turning on or turning off the air conditioner you may hear a cracking sound
from the indoor unit

Due to the temperature change, contraction / expansion is caused on the plastic
parts of the air conditioner. This is normal

During turning on or turning off the air conditioner the sound of compressor or fan is
heard

When defrost function starts a different sound is heard

Flow of refrigerant changes and the different sound is normal

A lot of dust is accumulated on filters

Clean the air filters

During TURBO operation the sound is a little bit louder

This is normal

When ambient humidity is high, water drops will be accumulated around the air
outlet or the panel

This is a normal physics phenomenon

Prolonged cooling run in open space produces water drops

Close the doors and windows

The angle of the louver blades is too small

Regulate the angle of the louver blades so the air flow can run freely

When the indoor temperature and humidity are high, it happens sometimes

This happens because the indoor air is cooled rapidly. After it runs form some time,
the indoor temperature and humidity will be reduced, and the mist will disappear.

There is interference, like thunder or wireless devices etc
Disconnect from power. Reconnect to power and operate again the air conditioner


There is significant interference (e.g. static electricity, constant voltage)

Turn off the air conditioner, pull out the plug from outlet. Wait 3 minutes then put the
plug to the outlet and restart the function of the air conditioner

Remote controller is out of range

The distance between signal center and receiving window should be no more than
8m

There are obstacles between signal center and window receiver

Remove obstacles

Signal center of remote controller cannot communicate with window receiver of the
indoor unit

Choose the right angle where signal center of remote controller can communicate
with window receiver of indoor unit

The display on remote controller is fuzzy or there is no display at all

Check the batteries. If their power is low, replace them

No display on remote controller

Check if the remote controller is damaged. If yes, please replace it

There is fluorescent lamp in the room

Take remote controller closer to the window receive of indoor unit
10
If
D