Service Manual

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Defrost Time Out (DTO) is the total time of compressor off time; including both defrost and
drip time cycles.
AS OF 8/1/15 THE FOLLOWING CHANGES WERE MADE TO THE DEFROST TIME OUT (DTO) ON
THE FOLLOWING MODELS:
 On all models except for the RF, RI, DZ and ML24WS; the DTO was expanded from 60
to 75 minutes.
 Model ML24WS was expanded from 40 to 75 minutes.
 RF, RI, and DZ models remain the same.
6.6.3 Manual Defrost
A manual defrost can be activated by using the following sequence:
 Press the LOCK and MINUS key simultaneously and hold for 3 seconds.
 The display will flash dEF (defrost mode) three times before entering the
defrost mode.
 dEF will be displayed for the duration of the defrost cycle.
 The defrost cycles will terminate when either of the following conditions are
achieved first:
o the defrost has been active for 40 minutes
o the defrost thermistor reaches 40°F
6.7 Error Codes
With the Aurora control there are four error codes that could appear on the user interface
display. They are as follows:
 EL : Compartment thermistor open or out of range
 Ed : Defrost thermistor open or out of range
 EL / Ed : Multiple thermistor errors, open or out of range
 CE : Communication cable error, broken connector pin or wire