INSTALLATION MANUAL AND USERS GUIDE
Multi Split Series – Ductless Split – Cassette Indoor unit
04006020101
© Sedna Aire Europe GmbH
11
10/2012
9. TROUBLE SHOOTING
Don’t try to repair the air conditioner by yourself. It may cause an
electric shock and kill you or damage the unit. Contact authorized service center.
Following checks prior to contact may save you money
Fault
Cause analysis
Air conditioner does not run upon
immediate restart after a stop
Breaker switched off or power cut-off ?
To protect the air conditioner upon immediate restart
after a stop, the microcomputer controller will delay
the unit for 3 minutes before the air conditioner will
run.
Air conditioner starts and stops again
immediately
Inlet or outlet vents blocked ?
Air conditioner blows out bad smell
when it is initially started.
The air conditioner itself has no bad smell. lf any, is the
bad smell accumulated from environment. Solution:
Clean the air filter . lf still any problem, the air
conditioner shall be cleaned (Please contact Authorized
Service Center)
You may hear "water flowing" noise
when the air conditioner is running.
When the air conditioner is started, or the compressor is
started or stopped during running or the air conditioner is
stopped, sometimes you may hear "hua-hua" or "di-du-
di-du" noise. This is the flowing sound of refrigerant
other than fault.
Sometimes a thin fog will flow out of
the outlet when air conditioner is
running in cooling mode.
This might occur when indoor temperature and humidity
are high. This is because the indoor air is quickly cooled
down.
After a period of time, the fog will disappear with the
decrease of indoor temperature and humidity.
You may hear a slight crack when the
air conditioner is started or stopped.
This is the sound of friction caused by expansion of panel
or other parts due to the change of temperature.
Air conditioner does not run.
Check if power failure?
Has circuit protection device has tripped?
ls the voltage too high or too low? (To be tested by
professional technicians).
ls timer function correctly used?
Air conditioner has poor cooling (or
heating) effect.
Air inlet or outlet of outdoor unit blocked?
Air
filter
clogged
by
dust?
All doors and windows closed?
Air
flow
set
to
"LOW
FAN"?
Any
other
heating
source
in
the
room?
Improper temperature setting ?
Direct exposure to sun ?
lndoor unit gives out noise.
The sound that the fan or compressor relay is
switching (close/open).
Air conditioner may give out sounds under defrost
or when it is stopped. This is caused due to inverse
flow of refrigerant in the unit.
H1: Defrosting
Is
normal
