Troubleshooting 14
1.Remote Maintenance
Possible causes of trouble
He
av
y l
oa
d c
on
di
tio
n
Lo
os
en ho
ld do
w
n bo
lts
a
nd /
o
r s
cr
ew
s
Ba
d ai
rp
ro
of
Th
e a
ir i
nl
et
o
r o
ut
le
t o
f e
ith
er
u
ni
t i
s b
lo
ck
ed
In
te
rf
er
en
ce f
ro
m
c
el
l p
ho
ne
to
w
er
s a
nd
rem
ot
e b
oo
st
er
s
Shi
ppi
ng
pl
at
es
re
m
ai
n a
tta
che
d
Unit will not start
The power switch is on but fans will not start
☆
The temperature on the display board cannot be set
Unit is on but the wind is not cold(hot)
Unit runs, but shortly stops
The unit starts up and stops frequently
☆
Unit runs continuously but insufficient cooling(heating)
☆
☆ ☆
Cool can not change to heat
Unit is noisy
☆
☆
Test method / remedy
Ch
ec
k h
ea
t l
oa
d
Ti
ght
en bo
lts
o
r s
cr
ew
s
Cl
os
e a
ll t
he
w
indo
w
s a
nd do
or
s
Re
m
ov
e t
he
o
bs
ta
cl
es
Re
co
nn
ec
t t
he
p
ow
er
o
r p
re
ss
O
N
/O
FF
bu
tto
n o
n r
em
ote
c
on
tr
ol
to
re
sta
rt o
pe
ra
tio
n
Re
m
ov
e t
he
m
Others
