If excessive noise/vibration
persists when sufficient
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 installed
position or insert rubber
cushions into the gap or
take other measure in order
to eliminate looseness.
Prevent the vibration from
transmitting to wall and etc
by fixing pipes on the wall
tightly or wrapping rubber
cushion around the pipe
which goes through the
hole in the wall or applying
other appropriate means.
Strength of ceiling
wall, floor, etc. may be
insufficient. Review the
installation place or apply
reinforcement to increase
the strength.
Check for leaning of
installed unit or incorrect
mounting of fan, louver or
motor, and then specify the
contacting point and correct
it.
When the heat exchanger
or filter 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 nois 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 vibration-proof
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:
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