E
Elle
ec
cttrro
on
niic
c C
Co
on
nttrro
oll
3-6
S
Se
errv
viic
ce
e D
Diia
ag
gn
no
os
sttiic
c M
Mo
od
de
e
IIn
niittiia
atte
e S
Se
errv
viic
ce
e M
Mo
od
de
e
The service technician should set the temperature to 0 F, then press and hold both the +
+ and -- keys
simultaneously for
3
seconds.
When the diagnostics mode is entered, the number "88" is displayed and the confirmation tone is sounded.
The status information will be displayed for
3
seconds and then return to the diagnostics indicator.
M
Mo
od
de
ell IId
de
en
nttiiffiic
ca
attiio
on
n
Press the plus (+
+) key to display the model number.
Once you have displayed the model ID, press and hold
the plus (+
+) and ffa
as
stt ffrre
ee
ez
ze
e keys for
3
or more seconds
to select the option to change the model ID. The model
ID will increment or decrement by pressing the +
+ or --
key. The model ID can be saved immediately by
pressing m
mu
utte
e s
so
ou
un
nd
ds
s key.
S
So
offttw
wa
arre
e V
Ve
errs
siio
on
n
Press the ffa
as
stt ffrre
ee
ez
ze
e key to display the production software version for the model. (The limitation is 00 - 99
production software versions per model.) The minus and 2 digit version number "-xx" is displayed.
D
Do
oo
orr S
Sw
wiittc
ch
h S
Stta
attu
us
s
Press the "--" key to display the door switch status.
If the door switch is open, the letter "d
dO
O" is displayed.
If the door switch is closed, the letter "d
dC
C" is displayed.
T
Th
he
errm
miis
stto
orr S
Stta
attu
us
s
Press the mute sounds key to display the thermistor status.
If the thermistor is operating properly, the characters "-- --" are displayed.
If the thermistor is open, the letter "ttO
O" is displayed.
If the thermistor is shorted, the letter "ttS
S" is displayed.
The thermistor status is not updated in showroom mode. The characters "-- --" are always displayed
R
Re
es
se
ett F
Fa
ac
ctto
orry
y D
De
effa
au
ulltts
s
Press the ffa
as
stt ffrre
ee
ez
ze
e key while the software version is displayed to reset all EEPROM values to the factory
defaults. The model ID will not be affected. The user interface will exit diagnostics mode and automatically
restart in normal power up operation.
E
Ex
xiitt D
Diia
ag
gn
no
os
sttiic
c M
Mo
od
de
e
To exit service mode, the service technician should press and hold both the +
+ and -- keys simultaneously for
3
or more seconds. The buzzer beeps at the end of
3
seconds.
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