![background image](http://html1.mh-extra.com/html/daikin/r71fuv1/r71fuv1_service-manual_4188538057.webp)
Si20-701_B
Symptom-based Troubleshooting
50
Troubleshooting
YES
YES
NO
NO
Insert shock
absorber in
mounting
section, or
strengthen the
mounting
section.
Does
the noise
generate with
vibration of whole
ceilings and
walls?
Correction of
installation.
Reinforcement
for ceilings or
walls
Does
the noise
generate with vibration
of unit mounting
section?
NO
YES
Insert cushion
materials to the
pipe support
such as saddle.
YES
NO
Disassemble and
remove parts
contact.
YES
NO
Correct piping
manually or
attach a dead
weight to pipe.
YES
NO
Normal.
[Installation work side]
[Power supply side]
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
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?
A