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DIAGNOSIS & TROUBLESHOOTING
DIAGNOSIS
PRE-DIAGNOSTICS CHECKS
• Confirm the refrigerator and freezer tem-
peratures before beginning other checks.
• See if the compressor, evaporator, and
condenser fans are running.
• Check the position of the air door.
DIAGNOSTICS MODE
The Diagnostics Mode is used to:
• Check the refrigerator & freezer ther-
mistors.
• Operate the evaporator fan motor at 3000
rpm.
• Operate the condenser fan motor and com-
pressor.
• Check the defrost bimetal and heater.
To enter the Diagnostics Mode, the control
must be turned on, and be in a normal cooling
mode.
Both the Power On/Off and the Water Filter
Reset keys must be functional. The refrigera-
tor LEDs will show the step number, with the
bottom LED being #1. The results of the checks
are shown on the water filter status indicator.
Green indicates good and red indicates bad.
After 20 minutes, the control will default from
the Diagnostics Mode to a normal cooling
mode.
To enter the diagnostics mode:
• Press and hold the Water Filter Reset
keypad, and then immediately press and
hold the Power keypad. Continue to press
both keypads for 3 seconds, or until you
hear a beep.
To advance the diagnostics sequence:
• To advance to the next step in the se-
quence, press and hold the Water Filter
Reset key for 2 seconds, or until you hear
a beep. The Diagnostics Chart on the
following page shows the step number and
the component being tested in each step.
Warmer
Water
Filter
Power
On/Off
Warmer
Cooler
Freezer Refrigerator
Cooler