Daikin ESIE13-02 Service Manual page 64

Troubleshooting
1
Troubleshooting
3
4
5
Caution
Part 4 – Troubleshooting
Does the
noise generate with
vibration of whole ceilings
and walls?
NO
Does the
noise generate with
vibration of unit mounting
section?
NO
Is the piping
secured?
[Power supply side]
YES
Does
the fan contact with
other parts?
NO
Does
the pipe contact with
casing?
NO
Is
the noise flushing
sound from pressure reducing
valve or capillary
tube?
NO
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
[Installation work side]
YES
YES
Continuous
slight noise of "shoo..." during
cooling or defrosting
NO
NO
Sound of
"shoo..." generates
just after operation start or
stop, or defrosting start
or stop.
YES
NO
YES
Creak during
heating and after operation
stop
YES
NO
Is
this an impact
noise at the start/end of
defrosting?
NO
∗ Excess charge of refrigerant
∗ Air intrudes into refrigerant
system
∗ Flushing noise due to
refrigerant shortage.
(Sound of shoo...)
64
ESIE13-02
Correction of installation
Reinforcement for ceilings or
walls
Insert shock absorber in
mounting section, or strengthen
the mounting section.
YES
Normal. The sound is flushing
noise of gas (refrigerant) inside
air conditioning unit
Insert cushion materials to the
pipe support such as saddle.
YES
Normal. The noise is a sound
generated at the time of gas
(refrigerant) flow change or stop
Disassemble and remove parts
contact.
Correct piping manually or
attach a dead weight to pipe
YES
Normal. Creak generates by
shrinkage of resin parts due to
temperature change.
Normal.
YES
It is normal.
YES
After vacuum drying, charge
correct amount of refrigerant.