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E E l l e e c c t t r r o o n n i i c c C C o o n n t t r r o o l l
A A l l a a r r m m s s
T T e e m m p p e e r r a a t t u u r r e e A A l l a a r r m m
If the temperature of the cabinet remains above alarm activation temperature of 23.0°F +/- 3 F° (-5°C +/- 2°C)
for more than 1 hour, the high temp LED will turn ON, mute sounds LED will flash, the display will show "HI",
and the buzzer sounds the alarm tones. "HI" will continue to be displayed until the m m u u t t e e s s o o u u n n d d s s key is
pressed even if cabinet temperature decreases. The highest temperature will display for 10-seconds. Next,
the freezer will display the set temperature if cabinet temperature is not above the upper control limit. If the
cabinet temperature is above the upper control limit, the actual cabinet temperature will be displayed until the
set temperature is reached. The display will not turn off until the temperature is below the alarm temperature.
P P o o w w e e r r F F a a i i l l A A l l a a r r m m
The red power fail LED will illuminate when the microprocessor initiates and the cabinet temperature is greater
than 10°F over the set temperature. The current temperature will be displayed and blinking. To acknowledge
the alarm, press the m m u u t t e e s s o o u u n n d d s s key. The audible alarm and power fail LED will then turn OFF. If the temp
display is OFF, the display will turn OFF 10 seconds after the alarm is cleared.
D D o o o o r r A A j j a a r r A A l l a a r r m m
When the door is left open for 5 or more minutes, the alarm sounds. The door ajar LED turns ON. The
display will not change. Close the door or press the m m u u t t e e s s o o u u n n d d s s key to turn the audible alarm off. The door
ajar LED remains on until the door is closed.
C C o o m m m m u u n n i i c c a a t t i i o o n n E E r r r r o o r r
If a communication error occurs, the freezer will operate in "Fail Safe Mode". The display will alternate
between "CE" and set temperature in 1 second intervals. The mute sounds LED flashes. Check connection
between UI & ECU. Press the m m u u t t e e s s o o u u n n d d s s key to stop the audible alarm. No features will activate during a
communication error because the error will prevent proper operation.
T T h h e e r r m m i i s s t t o o r r E E r r r r o o r r
If a thermistor error occurs, the freezer will operate in "Fail Safe Mode". The display will alternate between
"E1" and set temperature in 1 second intervals. The mute sounds LED flashes. Check the thermistor status.
Press the m m u u t t e e s s o o u u n n d d s s key to stop the audible alarm.
S S t t u u c c k k K K e e y y E E r r r r o o r r
If a key is stuck, the freezer will maintain the current set temperature. The display will alternate between "E2"
and set temperature in 1 second intervals. The mute sounds LED flashes. Check membrane keys. Try
pressing mute sounds key to stop the audible alarm. The audible indication times out in 30 seconds.
F F a a i i l l S S a a f f e e M M o o d d e e
When the unit goes into Fail Safe mode for a communications or thermistor error, the compressor will run
continuously.
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