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SiBE28-804
Troubleshooting Based on Equipment Condition
Troubleshooting
139
Troubleshooting
Continuous
slight noise of "shoo..."
during cooling or
defrosting
Creak
during heating
and after operation
stop
Sound
of "shoo..."
generates during cooling or
after operation
stop.
Sound of
"shoo..." generates
just after operation start
or stop, or defrosting
start or
stop.
∗
Excess charge of refrigerant
∗
Air intrudes into refrigerant
system
∗
Flushing noise due to
refrigerant shortage.
(Sound of shoo...)
Does
the noise
generate with vibration
of unit mounting
section?
Does
the noise generate
with vibration of whole
ceilings and
walls?
Is the piping secured?
Does
the fan contact with other
parts?
Does
the pipe contact with
casing?
Is
the noise
flushing sound from
pressure reducing valve
or capillary
tube?
Correction of installation
Reinforcement for ceilings
or walls
Insert shock absorber in
mounting section, or strengthen
the mounting section.
Normal. The sound is flushing
noise of gas (refrigerant)
inside air conditioning unit
Insert cushion materials to
the pipe support such as
saddle.
Normal. The noise is a
sound generated at the
time of gas (refrigerant)
flow change or stop
Disassemble and remove
parts contact.
Normal. Operation sound
of draining device
Correct piping manually or
attach a dead weight to
pipe
Normal. Creak generates by
shrinkage of resin parts due
to temperature change.
Normal.
After vacuum drying,
charge correct amount of
refrigerant.
An impact noise can be
reduced by means of
"Defrost Noise Reduction
Setting." For more
details, refer to "Field
Setting with Remote
Controller" (from P89).
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
[Power supply side]
NO
NO
NO
NO
NO
YES
NO
YES
YES
NO
YES
[Installation work side]
(S1997)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
It is normal.
YES
Is
this an impact
noise at the start/end of
defrosting?
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...