User Manual of Fiber Laser Chiller
-21-
Te
s
t
in
s
ul
a
tion
re
s
i
s
t
a
n
c
e
,
in
s
ul
a
tion
re
s
i
s
t
a
n
c
e
≥
5M
Ω
；
Ch
e
ck
t
h
e
g
roun
d
re
s
i
s
t
a
n
c
e
, g
roun
d
re
s
i
s
t
a
n
c
e
≤
4
Ω
；
Ca
rry
out
t
h
e
ca
p
ac
it
a
n
c
e
va
lue
te
s
t
on
t
h
e
ca
p
ac
itor
s
of
t
h
e
c
o
m
pre
ss
or
a
n
d
t
h
e
f
a
n
, a
n
d
t
h
e
ca
p
ac
it
a
n
c
e
va
lue
a
ttenu
a
tion
e
xc
ee
ds 10%, a
n
d
t
h
e
ca
p
ac
itor
nee
ds
to
b
e
repl
ac
e
d.
F i g u r e
1 3
T w o
k i n d s
o f
f i l t e r s
c o m m o n l y
u s e d
b y
o u r
c o m p a n y
9
Failure analysis and elimination
Wh
en
t
h
e
mach
ine
d
ete
c
t
s a
f
a
ult
,
t
h
e
d
i
s
pl
a
y
a
re
a a
ltern
a
tely
d
i
s
pl
a
y
s
t
h
e
te
m
per
a
ture
a
n
d
t
h
e
f
a
ult
c
o
d
e
"E
xx
"
. I
f
t
h
ere
a
re
m
ultiple
f
a
ult
s,
you
ca
n
pre
ss <U
p
>
or
<
Down
>
to
s
wit
ch
to
v
iew
d
ifferent
f
a
ult
s.
A
fter
pre
ss
in
g
t
h
e
<U
p
>
or
<
Down
> k
ey
,
t
h
e
f
a
ult
c
o
d
e
will
b
e
d
i
s
pl
a
ye
d
fi
x
e
d
ly
, a
n
d
t
h
e
te
m
per
a
ture
a
n
d
f
a
ult
c
o
d
e
will
b
e
d
i
s
pl
a
ye
d a
ltern
a
tely
a
fter
5s.
T
h
e
f
a
ult
c
o
d
e
s a
n
d d
e
sc
ription
s a
re
as
follow
s
:
fault
code
fault name
fault analysis
action
elimination
methods
E01
low temperature
water
probe
fault
A：
L
ow
temperature
water
probe
short
circuit
/
disconnection
B：
Low
temperature
water
probe
is
damaged
Non-stop
water
pump,
all
other
outputs
are
stopped
A：
C
heck whether the probe
wire is loose
B：
change the probe
E02
low temperature
water
High
temperature
alarm
A：
Insufficient
water
flow
B：
Poor
ventilation
C：
Too much dust
Only
stop
low
temperature
hydroelectric
heating
A：D
etect
ｗａｔｅｒ ｓｕｐｐｌｙ ｐｉｐｅｌｉｎｅ
B：C
lean
up the surrounding debris
C：C
lean the dust from the
condenser
E03
compressor
Pressure
failure
A：
Poor
ventilation
B：
Refrigerant
leak
C：
The
condensing
fan
is
not
running
D：
Too
much
dust
on
the
filter
Ｅ：Ｄａｍａｇｅｄ ｐｒｅｓｓｕｒｅ ｓｗｉｔｃｈ
Stop
the
compressor,
keep
the
water
pump
A：C
lean
debris
B：C
heck
C：C
heck
up the surrounding
leakage
the fan
D：
clean the dust
E：C
heck whether the pressure
switch and wiring are loose
E04
Phase
sequence
alarm
A：
Power
phase
loss
/
phase
loss
B：
Phase
sequence
error
C：
Three-phase
unbalance
B：D
amaged
phase
sequence
protector
Stop
the
machine
A：C
heck
power
supply
B：A
rbitrarily
swap
two
phase
wires
C：C
heck
the
power
supply
circuit
D：
Replace
the
phase
sequence
protector
E05
low
temperature
water
flow alarm
A
:
The
low
temperature
water
pipeline
is
blocked
B
:
Reverse
connection
of
inlet
and
outlet
C
:
Water
leakage
in
the
suction
pipe
D
:
The
flow
switch
is
damaged
not stop
water
pump,
all
others are
outputed
and then
stop it
A
:
C
lean
the
pipeline
B
:
C
heck
the
water
inlet
and
outlet
pipelines
C
:
C
heck
and
tighten
the
suction
pipe
D
:
C
heck
the
flow
switch
and
replace
filter
filter element
knob cover
Stainless steel screen
Built-in stainless steel filter
Install the screw
Y-filter
