Operation Manual
SiMT041311E
117
Installation / Operation Manual
43
Case
Description / where to check
Air does not come out.
X
Page 14
Air comes out.
X
Page 25
X
Page 24
Air has an odour
Case
Description / where to check
X
Page 27
Case
Description / where to check
X
Page 24
Mist comes out
Case
Mist comes out of the indoor unit.
Troubleshooting (for service personnel)
The room does not cool down/warm up
Air does not come out /
Air comes out.
In HEATING operation
Operating sound is loud
Operating sound changes
Is the airflow rate setting appropriate?
In COOLING / “SARARA” DRY / DRY COOLING operation
• The air conditioner is warming up. Wait for about 1 to 4 minutes.
• When the airflow rate setting is “AUTO”, a function to prevent emission of an odour
contained in the indoor unit operates. This keeps air from coming out immediately after
operation is started. Wait for about 40 seconds.
• Is the airflow rate setting low, such as “Indoor unit quiet” or “1”? Increase the airflow rate
setting.
Is the set temperature appropriate?
Is the adjustment of the airflow direction appropriate?
• Is there any furniture directly under or beside the indoor unit?
• Is the air conditioner in ECONO operation?
• Are the air filters dirty?
• Is there anything blocking the air inlet or air outlet of the indoor unit or outdoor unit?
• Is the window or door open?
• Is the exhaust fan turning?
• Are the ventilating operation and air conditioning operation used at the same time?
• The air conditioner may take in an odour from outside. Stop humidifying operation and
remove the cause of the odour.
• When operation is switched to “SARARA” DRY operation, the humidity may increase
temporarily, which may generate an odour.
• The room odour absorbed in the unit is discharged with the airflow.
We recommend you to have the indoor unit cleaned. Consult the service shop.
• The air outlet may give out an odour because a small amount of ozone is generated.
However, the amount is very small and does not harm your health.
• This happens when the unit is in MOLD PROOF operation.
• In HUMID HEATING operation, the humidifying unit starts operating and therefore
generates a slightly louder sound in the room. This sound is generated by the humidifying
operation which becomes louder with increases in the airflow rate.
• In ventilating operation, fresh air is taken in from outside. This may cause outside noise
to sound loud. Operating sound becomes slightly louder as well.
• This happens when the humidifying fan starts or stops operating.
• Outside sound may be loud.
• To protect the air conditioner, the humidifying fan keeps turning for about another
3 minutes after operation is stopped.
Commonly occurring sounds
Sound occurs during humidifying
operation.
Sound keeps coming out of the
indoor unit even after humidifying
operation is stopped.
• This happens when the air in the room is cooled into mist by the cold airflow during
COOLING or other operation.
• This is because the air in the room is cooled by the heat exchanger and becomes mist
during defrost operation.
Description / where to check
The air conditioner gives off an
odour.