7007452 CryoMed Freezer 9-1
Thermo Scientific
Troub
le
sho
ot
in
g Guid
e
Sy
m
p
to
m
P
os
si
ble Cau
se
V
erification
Solu
tion
L
E
D
’s a
n
d
d
isp
la
y
s
n
o
t li
g
h
ted
1
).
P
o
w
er at
A
C
o
u
tlet
2).
P
o
w
er cord
3). C
ircu
it B
reak
er
4).
Pow
er su
ppl
y
5). C
o
n
trol Boa
rd
1). Meas
u
re les
s th
a
n
90/207VA
C
at outlet?
2). Meas
u
re les
s th
a
n
90/207VA
C
at
AC
i
n
let?
3). Meas
u
re l
es
s th
a
n
90/
207VA
C
at
po
w
er s
u
ppl
y
in
p
u
t
4). DC
ou
tp
u
ts
(5/
12/
-12VDC
) n
o
t pres
en
t
w
h
e
n
po
w
er h
arn
e
ss
di
sc
onn
ect
ed
fro
m
con
trol
ler board
?
5). DC
ou
tp
u
ts
(5/
12/
-12VDC
) n
o
t pres
e
n
t
w
h
e
n
po
w
er h
arn
e
ss
conn
ected to con
troller board
?
1). C
o
rrect
pro
b
lem
2). R
eplace p
o
w
er cord
3). R
eplace circu
it break
er
4). R
eplace p
o
w
er s
u
ppl
y
5). R
eplace con
troller b
o
ard
(m
a
y
al
so
be pow
er su
ppl
y
).
No Pow
er-u
p
“S
pl
ash
” s
creen
1). L
C
D di
sp
la
y
cont
ras
t
2).
Pow
er su
ppl
y
3). L
C
D di
sp
la
y
4). C
o
n
troller boa
rd
1). If
tem
peratu
re dis
p
la
y
s a
n
d L
E
D
’s
appear n
o
rm
al,
v
erify
adj
u
st
m
ent of
R
8
L
C
D co
n
tras
t
2). If
+5V DC
l
es
s t
h
a
n
4.75V
w
h
e
n
po
w
er
h
arn
e
ss
con
n
ected to con
troller board
?
3). L
E
D’
s a
n
d te
m
p
eratu
re dis
p
la
y
appear n
o
rm
al a
n
d
Pre-
se
t prof
il
e #1 s
tart
s
w
h
e
n
t
h
e
R
u
n
k
e
y
i
s pres
se
d.
4). Mu
ltiple L
E
D
’s lit (Idle/Run/W
ar
m
) an
d/or
unc
ha
ngi
n
g
misc
. n
u
m
b
er
s in te
mp
er
at
ur
e d
isp
la
ys.
1). A
d
ju
st
R
8
f
o
r opt
im
um
con
tras
t.
2). R
eplace p
o
w
er s
u
ppl
y
(
m
ay
be con
trol
le
r boa
rd i
f com
pon
e
n
ts
see
m
h
o
t to
th
e to
u
c
h
)
3). R
eplace L
C
D dis
p
la
y
(
m
ay
als
o be con
troller boa
rd)
4). R
eplace con
troller b
o
ard
Heater Error A
larm
1
). Heater
T
h
erm
al
C
u
to
u
t
1b). C
o
n
troller b
o
ard
2). Heater
1
). Ch
eck
th
er
m
al c
u
tou
t.
1a). Ex
am
in
e Error L
o
g
s
fo
r “
C
h
a
m
b
er ov
er li
m
it
te
m
p
eratu
re” an
d/or s
e
n
sor f
ail
u
re alar
m
s. If
n
o
n
e:
1b).
If
ov
er li
m
it or s
ens
or f
ail
u
re log
s pres
e
n
t,
m
eas
u
re h
eater
v
o
ltag
e on
/o
ff
in
m
a
n
u
al
m
ode. If
on
bu
t n
o
off
:
2). Meas
u
re
m
o
re th
an
90/207VAC
acros
s h
eater i
n
m
anu
al m
ode w
ith
h
eater
on
an
d n
o
ch
a
m
ber
te
m
p
eratu
re ris
e:
1
). Reset th
er
m
al c
u
to
u
t
1a). R
eplace th
er
m
al cu
to
u
t
1b). R
eplace c
o
n
troller
board
2). R
eplace h
eater
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