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6. Service Menu
From the service menu information regarding the functioning of the unit can be obtained.
To access the service menu, press and hold the up and down buttons and the "ENTER"
button simultaneously for 3 seconds. Scroll through the service menu list using the
"ENTER" button. Change options using the up/down arrows. To exit, press the "ENTER"
button until normal display mode returns. To exit the service menu at any point, press
and hold the "ENTER" button for 3 seconds or the service menu display remains on the
display board for 10 minutes after the last keystroke, then automatically reverts to normal
operation (cabinet temperature display). All information given in degrees automatically
displays in the current selected scale (°F or °C).
Display Definition
1OFF
Displays current cabinet temperature.
1 ON
Displays current evaporator temperature. Display will automatically revert to cabinet sensor after five minutes.
2OFF
Manual forced defrost option not activated.
2 ON
Manual forced defrost option activated. Changing from 2OFF to 2 ON initates a forced defrost upon returning
to the normal display mode.
3OFF
Unconditional alarm reset option not activated.
3 ON
Unconditional alarm reset option activated. Changing from 3OFF to 3 ON resets all alarm display codes
simultaneously. This is a complete clearing of alarms.
4 16
Right two digits represent compressor run time in last 24 hours to the nearest hour. Example: 16 hours total
run time in the last 24 hours.
5 50
Right two digits represent compressor on time percentage for the last 5 run cycles. A run cycle begins when
the compressor switches from off to on and ends the next time it switches from off to on. (See diagram below).
Example: 50% run time over the last 5 run cycles.
Value is calculated as follows: Percent On Time = On Time Last 5 Cycles/Total Time Last 5 Cycles. Value is
saved every 5 cycles.
Note: "On Time Last 5 Cycles" does not include an on time that was terminated by a defrost cycle or the first
on time after a defrost, and "Total Time Last 5 Cycles" does not include an on or off time that was terminated
by a defrost cycle, the time spent in defrost, or the first on time after a defrost.
6 45
Right two digits represent compressor run time for the last run cycle. Example: 45 minutes of compressor run
time in last run cycle.
7 45
Length of last defrost cycle (Freezer Only).
8 67
Right two digits represent highest cabinet temperature recorded during the last high temperature alarm.
Example: Temperature reached 67 degrees during last high temperature alarm. Display will show "8--" if there
has not been a high temperature alarm. Value is saved every 8.5 minutes when in alarm.
9-10
Right three places represent lowest cabinet temperature recorded during the last low temperature alarm.
Example: Temperature reached -10 degrees during the last low temperature alarm. Display will show "9--" if
there has not been a low temperature alarm. Value is saved every 8.5 minutes when in alarm.
R_ _ 0
The diagram below is an example of a run cycle used to calculate run time:
