Installation & Operation Manual -
VFH-B 30/36/42 Series
Inverterflex Series
15
6 The conditions listed below are not classified into errors.
Table 10
Conditions
Causes
The unit does not run
Won't restart
The overload protection switch of the unit
causes
startup delay for three minutes.
As soon as power is on.
The unit will stand by for approximate
ly
one minute.
The unit blows out mist
When the cooling operation starts.
The hi-humidity air indoor is cooled quickly.
The unit generates noise
The unit
“
clatters
”
as soon as it
starts running.
It is the sound generated during the initialization
of the electronic expansion valve.
The unit
“
swishes
”
during the
cooling operation.
It is the sound
of
the refrigerant gas run
ning
inside the unit.
The unit
“
swishes
”
when it is
started or stopped.
It is the sound
of
the refrigerant gas stops
running.
Expansion and contraction
due
to
the
temperature change.
The unit blows out dust.
When the unit restarts after it
hasn't been
used for a long time.
The dust inside the unit is blown out.
The unit emits odors.
When the unit is running.
The odors absorbed
from the environment
are
blown out again.
NOTICE!
If
your
problem can not be solved after checking the above items, please contact
your
service center and
show phenomena and models.
Following circumstance are not
a
malfunction
Table 11
Malfunction
Reason
Unit doesn’t run
When unit is started
immediately after it is just
turned off
Overload protection switch makes it run after
a
3
minute delay
When power is turned on
Standby operati
on
for about 1 minute
Mist comes from the
unit
Under cooling
Indoor high humidity air is cooled rapidly
Noise is emitted
Slight c
licking
sound is heard
when just turned on
N
oise
during
electronic expansion valve initialization
There is
swooshing
sound
when cooling
S
ound
when
gas refrigerant flowing in unit
There is sound when unit starts
or stops
S
ound
when
gas refrigerant
starts and
stops to flow
ing.
Cracking sound is heard when
unit is operating and after
operating
That’s sound cause
d by expansion of panel and other
parts due to temperature change
The unit blows
out du
s
t
When unit runs after no
operation for a long period
Dust in indoor unit is bl
own
out
The unit emits odor
Operating
The room odor absorbed by the unit
blows
out again
Indoor unit still runs
after switch off
After every indoor unit receive
s
"stop" signal, fan will
continue to
run for a short time
Indoor fan motor will keep running 20-70s so as to take
good use of excess cooling and heating and prepare for
next cycle.
The unit
“
squeaks
”
when it is in
and after the running.
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6
Inverterflex Series
