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ESIE05-04
Troubleshooting
Part 3 – Troubleshooting
3–15
3
3
4
5
1
1.3.8
Equipment produces loud noise or shakes
Applicable Model
All models of SkyAir series
Error Detection
Method
Error Generating
Condition
Possible Cause
Q
Excess charge of refrigerant
Q
Air intrudes into refrigerant system
Q
Flushing noise due to refrigerant shortage. (Sound of shoo...)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
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.
∗
Excess charge of refrigerant
∗
Air intrudes into refrigerant
system
∗
Flushing noise due to
refrigerant shortage. (Sound
of shoo...)
NO
YES
YES
YES
YES
YES
Does
the noise generate
with vibration of whole
ceilings and
walls?
YES
NO
NO
NO
Does
the noise generate
with vibration of unit
mounting section?
Continuous
slight noise of "shoo..."
during cooling or
defrosting
YES
[Power supply side]
Is the piping secured?
Sound of
"shoo..." generates
just after operation start or
stop, or defrosting
start or stop.
NO
NO
Does the
fan contact with other
parts?
Sound of
"shoo..." generates
during cooling or after
operation
stop.
NO
NO
Does the
pipe contact with
casing?
Creak during
heatingand after operation
stop
YES
NO
YES
YES
NO
Is
the noise
flushing sound from
pressure reducing valve
or capillary
tube?
YES
[Installation work side]
(S1997)
Summary of Contents for FCQ35B7V1
Page 1: ...Service Manual ESIE05 04 R 410A Sky Air Indoor...
Page 2: ......
Page 20: ...ESIE05 04 1 2 Part 1 System Outline 3 1 1 5...
Page 62: ...General Outline ESIE05 04 1 44 Part 1 System Outline 3 1 1 4 5...
Page 78: ...ESIE05 04 1 60 Part 1 System Outline...
Page 112: ...Wiring Diagrams ESIE05 04 1 94 Part 1 System Outline 3 1 1 4 5...
Page 140: ...ESIE05 04 2 2 Part 2 Functional Description 3 1 2 5...
Page 164: ...ESIE05 04 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 206: ...Error Codes ESIE05 04 3 44 Part 3 Troubleshooting 3 1 3 4 5...
Page 224: ...Additional Checks for Troubleshooting ESIE05 04 3 62 Part 3 Troubleshooting 3 1 3 4 5...
Page 226: ...ESIE05 04 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 252: ...ESIE05 04 5 2 Part 5 Disassembly and Maintenance 3 1 5...
Page 384: ...Disassembly and Maintenance ESIE05 04 5 134 Part 5 Disassembly and Maintenance 3 1 5 5...
Page 390: ...ESIE05 04 vi Index 3 1 4 5 W Wiring diagrams Indoor units k 1 61...