Mitsubishi Heavy Industries FDT100VNAWVH User Manual

'19 • PAC-SM-309
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87
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Excessive noise/vibration (1/3)
– –
– –
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Does the
installation of
indoor/outdoor
unit loose?
[Installation work]
Does noise/vibration
occur not only from the
air-conditioner
but also from entire
building?
[Product]
Does noise/vibration
occur from operating
fan (fan only)?
Are pipes
touching the wall, etc?
Is there a fan
or louver touching other
components?
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NONO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Does
noise/vibration
occur during or soon
after stopping operation
of air-conditioner?
NO
If excessive noise/vibration
persistswhensufcient
time has elapsed after
stopping the unit, it is
considered that the air-
conditioner is not the
source.
Check the installed
condition carefully, and
correct the position or
insert rubber cushions
or others into the gap, if
necessary.
Prevent the vibration from
transmitting to wall and etc
byxingpipesonthewall
or wrapping rubber cushion
around the pipe which
goes through the hole in
the wall or applying other
appropriate means.
Strength of ceiling
wall,oor,etc.maybe
insufcient.Reviewthe
installing position or
reinforce it.
Check for leaning of
installed unit or anomalous
mounting of fan, louver
or motor and specify the
contacting point and correct
it.
When the heat exchanger
orlterisclogged,clean
them. In case that the
unit is installed at the site
where background noise
is very low, small noise
from indoor unit can be
heard, but it is normal.
Before installation, check
for background noise. If
backgound noise is very
low, convince client prior
to installation.
2. Error detection method
3. Condition of error displayed
4. Presumable cause
➀ Improper installation work
• Improper anti-vibration
work at instllation
• Insufficient strength of
mounting face
➁ Defective product
• Before/after shipping from
factory
➂ Improper adjustment during
commissioning
• Excess/shortage of
refrigerant, etc.
Note:
Error code
Remote control:
LED Green Red
Indoor
Outdoor
Content

Mitsubishi Heavy Industries FDT100VNAWVH Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT100VNAWVH
Category	Air Conditioner
Language	English