Service Test 173 - Ambient Light Test; Service Test 174 - Dispenser Water Actuator (Bottom Mount Units Only); Service Test 175 - Dispenser Line Test - Fisher & Paykel RX256DT4X1 FP Service Manual

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8.1.4.17

Service Test 173 - Ambient Light Test.

This test is used to test the Auto Light feature. When selected, the refrigerator display will show "Lo" or
"hi" depending on the ambient light sensed by the light sensor. A service technician should evaluate
the proper operation of the ambient light by covering the light sensor for approximately 10 seconds
and verify a "Lo" on the display.
8.1.4.18

Service Test 174 - Dispenser Water Actuator (Bottom Mount units only).

This test is used to test the dispenser actuator in Bottom Mount units. When selected, the refrigerator
display will show "Off" when the actuator is not activated.
refrigerator display will show "On". A service technician should evaluate proper operation of the
actuator.
8.1.4.19

Service Test 175 - Dispenser Line Test.

This test is used to test the dispenser feedback input. When selected, the refrigerator display will
show "Off". When the actuator or Sports Fill keypad are pressed, the refrigerator display should
change to "On".
When the display shows "On", it means that the main control board has received a DISP signal. This
test is used to further troubleshoot dispensing problems. This test should follow tests in any of the
previous dispenser tests.
LOW AMBIENT LIGHT
HIGH AMBIENT LIGHT
ACTUATOR IS NOT ACTIVE
ACTUATOR IS ACTIVE
ACTUATOR/FRONT FILL IS NOT ACTIVE
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When the actuator is pressed, the