25
24
ON
OFF
SET
WARMER
COLDER
F/C
PRESS AND HOLD
POWER FAILURE - Flashing Amber
HIGH/LOW TEMP - Red
PRESS ON/OFF - Reset
ALARMS OFF - Steady Amber
TruProtect System
55
˚
F
TruProtect
™
“Advanced” Function “Quick” Reference
SERVICE DIAGNOSTICS - SINGLE ZONE
Solid Door Single Zone Models:
Glass Door Single Zone Models:
ON
OFF
SET
PRESS AND HOLD
POWER FAILURE - Flashing Amber
HIGH/LOW TEMP - Red
PRESS ON/OFF - Reset
ALARMS OFF - Steady Amber
TruProtect System
WARMER
COLDER
˚̊
F/C
LIGHT
55
˚
F
55˚
F
Fu
un
nccttiio
on
n
F
Fu
un
nccttiio
on
n A
Acccce
essss
S
Sh
ho
ow
w R
Ro
oo
om
m M
Mo
od
de
e
S
Se
errvviicce
e D
Diia
ag
gn
no
ossttiiccss
“
“E
En
ntte
err”
” a
an
nd
d “
“E
Exxiitt”
” S
Se
errvviicce
e D
Diia
ag
gn
no
ossttiiccss m
mo
od
de
e b
byy p
prre
essssiin
ng
g a
an
nd
d h
ho
olld
diin
ng
g tth
he
e
kke
eyyp
pa
ad
d
w
wh
hiille
e p
prre
essssiin
ng
g tth
he
e
kke
eyyp
pa
ad
d 4
4--ttiim
me
ess w
wiitth
hiin
n 5
5--sse
ecco
on
nd
dss.. S
Se
errvviicce
e D
Diia
ag
gn
no
ossttiiccss m
mo
od
de
e
a
allsso
o w
wiillll a
au
utto
om
ma
attiicca
allllyy e
exxiitt a
afftte
err 5
5--m
miin
nu
utte
ess o
off n
no
o kke
eyyp
pa
ad
d e
en
nttrryy..
D
Diissp
plla
ayy E
Errrro
orr C
Co
od
de
e R
Re
effe
erre
en
ncce
e::
T
Th
he
e m
miiccrro
op
prro
occe
esssso
orr iin
n tth
he
e cco
on
nttrro
oll cco
on
nttiin
nu
ua
allllyy m
mo
on
niitto
orrss ccrriittiicca
all rre
effrriig
ge
erra
attiio
on
n ssyysstte
em
m
cco
om
mp
po
on
ne
en
nttss ffo
orr p
prro
op
pe
err o
op
pe
erra
attiio
on
n.. IIff cco
om
mp
po
on
ne
en
ntt p
pa
arra
am
me
ette
errss e
exxcce
ee
ed
d n
no
orrm
ma
all o
op
pe
erra
attiin
ng
g
ssp
pe
ecciiffiicca
attiio
on
nss,, tth
he
e d
diissp
plla
ayy w
wiillll a
au
utto
om
ma
attiicca
allllyy fflla
assh
h tth
he
e rre
essp
pe
eccttiivve
e e
errrro
orr cco
od
de
e a
ass ffo
ollllo
ow
wss::
P
Po
ow
we
err lliin
ne
e ffllu
uccttu
ua
attiio
on
nss m
ma
ayy cca
au
usse
e a
an
n e
errrro
orr cco
od
de
e tto
o b
be
e d
diissp
plla
ayye
ed
d w
wiitth
h n
no
o p
prro
od
du
ucctt ffa
au
ulltt..
T
Th
he
erre
effo
orre
e,, tth
he
e ffiirrsstt ttiim
me
e a
an
n e
errrro
orr cco
od
de
e a
ap
pp
pe
ea
arrss,, p
plle
ea
asse
e cclle
ea
arr tth
he
e cco
od
de
e b
byy h
ho
olld
diin
ng
g
a
an
nd
d
p
prre
essssiin
ng
g
4
4 ttiim
me
ess.. IIff tth
he
e p
prro
od
du
ucctt iiss a
att ffa
au
ulltt,, tth
he
e e
errrro
orr cco
od
de
e w
wiillll a
ap
pp
pe
ea
arr a
ag
ga
aiin
n,, a
an
nd
d yyo
ou
u
ssh
ho
ou
ulld
d cco
on
ntta
acctt yyo
ou
urr D
De
ea
alle
err o
orr V
Viikkiin
ng
g C
Cu
usstto
om
me
err S
Se
errvviicce
e tto
o sscch
he
ed
du
ulle
e sse
errvviicce
e b
byy a
a
q
qu
ua
alliiffiie
ed
d tte
ecch
hn
niicciia
an
n..
ON
OFF
SET
WARMER
COLDER
˚̊F/C
LIGHT
55
˚
F
13
˚
C
38
˚
F
4
˚
C
SA
ON
OFF
SET
WARMER
COLDER
˚̊F/C
LIGHT
55
˚
F
13
˚
C
38
˚
F
4
˚
C
SA
ON
OFF
SET
WARMER
COLDER
˚̊F/C
LIGHT
55
˚
F
13
˚
C
38
˚
F
4
˚
C
SA
E
En
na
ab
blle
e tth
he
e S
Sh
ho
ow
w R
Ro
oo
om
m M
Mo
od
de
e b
byy p
prre
essssiin
ng
g a
an
nd
d h
ho
olld
diin
ng
g tth
he
e
kke
eyyp
pa
ad
d w
wh
hiille
e
p
pe
errffo
orrm
miin
ng
g a
a “
“P
Po
ow
we
err O
On
n R
Re
esse
ett”
”,, ((P
PO
OR
R)),, ii..e
e.. -- d
diisscco
on
nn
ne
ecctt a
an
nd
d rre
ecco
on
nn
ne
ecctt tth
he
e p
po
ow
we
err
ssu
up
pp
pllyy tto
o u
un
niitt.. E
Exxiitt S
Sh
ho
ow
w R
Ro
oo
om
m M
Mo
od
de
e b
byy iin
niittiia
attiin
ng
g a
a P
PO
OR
R o
on
nllyy..
E1
Compressor fault, (high/low amps).
Condenser fan motor fault, (high/low amps).
Evaporator thermistor “sensor B” fault, (out-of-range).
Display thermistor “sensor A” fault, (out-of-range).
E2
E3
E1
C
Co
on
nttrro
oll C
Co
on
nffiirrm
ma
attiio
on
n//C
Co
om
mm
me
en
ntt
S
Sh
ho
ow
w R
Ro
oo
om
m M
Mo
od
de
e w
wiillll d
diissa
ab
blle
e tth
he
e rre
effrriig
ge
erra
atto
orr ssyysstte
em
m a
an
nd
d ffa
an
nss w
wh
hiille
e a
allllo
ow
wiin
ng
g tth
he
e iin
ntte
errn
na
all lliig
gh
httss,, d
diissp
plla
ayy a
an
nd
d u
usse
err iin
ntte
errffa
acce
e
p
pa
an
ne
ell tto
o ffu
un
nccttiio
on
n.. L
Liig
gh
httss w
wiillll ttiim
me
e o
ou
utt a
afftte
err 1
15
5--m
miin
nu
utte
ess o
off cco
on
nttiin
nu
uo
ou
uss o
on
n--ttiim
me
e w
wh
hiille
e iin
n S
Sh
ho
ow
w R
Ro
oo
om
m M
Mo
od
de
e a
ass a
a ssa
affe
ettyy
ffe
ea
attu
urre
e.. T
Th
he
e 1
15
5--m
miin
nu
utte
e lliig
gh
htt--o
on
n ttiim
me
e cca
an
n b
be
e rre
ea
accttiivva
atte
ed
d b
byy ccllo
ossiin
ng
g a
an
nd
d o
op
pe
en
niin
ng
g tth
he
e d
do
oo
orr o
orr b
byy p
prre
essssiin
ng
g tth
he
e kke
eyyp
pa
ad
d..
ON
OFF
SET
WARMER
COLDER
˚̊F/C
LIGHT
55
˚
F
13
˚
C
38
˚
F
4
˚
C
SA
ON
OFF
SET
WARMER
COLDER
˚̊F/C
LIGHT
55
˚
F
13
˚
C
38
˚
F
4
˚
C
SA
ON
OFF
SET
WARMER
COLDER
˚̊F/C
LIGHT
55
˚
F
13
˚
C
38
˚
F
4
˚
C
SA
ON
OFF
SET
WARMER
COLDER
˚̊F/C
LIGHT
55
˚
F
13
˚
C
38
˚
F
4
˚
C
SA
S
Se
errvviicce
e D
Diia
ag
gn
no
ossttiiccss M
Mo
od
de
e e
en
na
ab
blle
ess sse
errvviicce
e tte
ecch
hn
niicciia
an
nss tto
o iid
de
en
nttiiffyy tth
he
e ffiirrm
mw
wa
arre
e a
an
nd
d sso
offttw
wa
arre
e vve
errssiio
on
nss,, tte
esstt sstta
attu
uss o
off
“
“m
mo
od
de
ell ssp
pe
ecciiffiicc”
” ssyysstte
em
m cco
om
mp
po
on
ne
en
nttss a
an
nd
d sse
en
nsso
orrss a
an
nd
d cch
ha
an
ng
ge
e sstta
atte
e o
off cco
om
mp
po
on
ne
en
nttss w
wh
he
erre
e a
ap
pp
plliicca
ab
blle
e,, ((ii..e
e.. -- cco
om
mp
prre
esssso
orr
o
on
n//o
offff,, e
ettcc......)).. W
Wh
hiille
e iin
n S
Se
errvviicce
e D
Diia
ag
gn
no
ossttiiccss M
Mo
od
de
e,, tte
essttss a
arre
e iin
nccrre
em
me
en
ntte
ed
d b
byy p
prre
essssiin
ng
g tth
he
e kke
eyyp
pa
ad
d a
an
nd
d ssp
pe
ecciiffiicc
cco
om
mp
po
on
ne
en
ntt sstta
atte
e cca
an
n b
be
e cch
ha
an
ng
ge
ed
d tto
o “
“o
on
n”
” a
an
nd
d “
“o
offff”
” b
byy p
prre
essssiin
ng
g tth
he
e
a
an
nd
d
kke
eyyp
pa
ad
dss rre
essp
pe
eccttiivve
ellyy.. T
Th
he
e
ffo
ollllo
ow
wiin
ng
g cco
om
mp
po
on
ne
en
ntt tte
essttss a
arre
e a
avva
aiilla
ab
blle
e::
Test #
Component Description
OK
Off/Open
On/Shorted
0
Temp Sensor A
1
Temp Sensor B
2
Compressor
n/a
3
Interior/Ice Maker Fan
n/a
4
Reverse Gas Solenoid
n/a
5
Condenser Fan
n/a
6
Mullion Heater
n/a
7
Door A Sense
n/a
8
Door B Sense
n/a
9
Door C Sense
n/a
Available Status Indicators
0 -
1 -
0 0
Note: Must use magnet to change state of Door C Sense.
ON
OFF
SET
PRESS AND HOLD
magnet sense area
40
˚
F
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
ON
OFF
SET
WARMER
COLDER
˚̊F/C
55˚
F
LIGHT
13˚
C
38˚
F
4˚
C
SA
ON
OFF
SET
WARMER
COLDER
˚̊F/C
55˚
F
LIGHT
13˚
C
38˚
F
4˚
C
SA