T
est met
hod
/
re
m
ed
y
U
ni
t i
s noi
sy
Coo
l
ca
n
not
cha
ng
e
to
heat
U
ni
t runs
co
nt
inuous
ly
but
ins
uf
fici
ent
co
oli
ng
(heati
ng
)
T
he
uni
t s
ta
rts
up
a
nd
st
op
s f
req
uen
tly
U
ni
t runs
, b
ut
shor
tly
st
op
s
U
ni
t i
s o
n
but
the
wind
is
not
co
ld(
hot)
T
he
tempe
ra
ture
on
the
dis
pla
y
bo
ard
ca
nnot
be
set
T
he
po
we
r
switch
is
on
bu
t f
ans
wil
l
not
st
art
U
ni
t wil
l
not
st
art
P
os
sible
ca
u
ses
o
f t
roub
le
1.R
emot
e
Maint
ena
nce
Test voltage
☆
Power failure
El
ect
rica
l Ci
rc
uit
Close the power switch
☆
The main power tripped
Inspect connections - tighten
☆
☆
Loose connections
Change the transformer
☆
☆
Faulty transformer
Test voltage
☆
☆
☆
The voltage is too high or too low
Replace the battery of the remote control
☆
The remote control is powered off
Replace the remote control
☆
Broken remote control
Clean or replace
☆
Dirty air filter
Re
fri
ge
ran
t C
irc
uit
Clean
☆
Dirty condenser fins
Adjust the setting temperature
☆
☆
☆
The setting temperature is higher/lower than the
room's(cooling/heating)
Turn the AC later
☆
☆
☆
☆
The ambient temperature is too high/low when the
mode is cooling/heating
Adjust to cool mode
☆
Fan mode
Turn off SILENCE function.
☆
SILENCE function is activated(optional function)
Turn the AC later
☆
Frosting and defrosting frequently
P
ag
e
66
