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400 SERIES, MODEL 427R REFRIGERATOR
Troubleshooting Input Operations
» Diagnostic Mode
1. Unit must be ON
2. Press COLDER & UNIT ON/OFF keys simultaneously,
then release both keys
NOTE: After performing the above key strokes, the following
will appear on the LCD. Temperatures shown are for refer-
ence only, actual temperatures may vary.
3388
First reading is refrigerator compartment temperature.
r
Press UNIT ON/OFF key while in Diagnostic Mode to dis-
play location. (r = Refrigerator Compartment)
3344
Press COLDER key. Second reading is evaporator Temp.
EE
Press UNIT ON/OFF key while in Diagnostic Mode to dis-
play location. (E = Evaporator)
EEEE
If “EE” is displayed in place of temperature, thermistor is
faulty.
NOTE: Diagnostic Mode ends 10 seconds after last key
stroke.