GE PSI21MGM, Technical Service Manual

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Filters
The FreshSaver filter is located on the FRESH
PRODUCE drawer and will last for 1 year. Some
models are equipped with a FreshSaver FILTER
LED. After 1 year of refrigerator operating time,
the FreshSaver FILTER LED will illuminate as a
reminder to the owner to change the filter. The LED
can be reset by pressing and holding the HOLD 3
SECS pad for 3 seconds. The LED will flash while
the pad is pressed, remain illuminated for 3
seconds after the pad is released, and turn off.
Some models are equipped with a water filter that
is located in the upper right-hand corner of the
fresh food compartment. Filters are designed to be
used for up to 18 hours of open valve time or 1
year of clock time.
When 90% of filter time has elapsed (open valve
time or clock time, whichever comes first), the
main control board will illuminate the filter reminder
LED (amber). When 100% of the filter time has
elapsed, the main control board will illuminate the
filter reminder LED (red).
Hinge System and Door Closure
The hinge brackets are not adjustable on the
cabinet. The fresh food door can be adjusted up
and down by using the hinge adjustment pin
(located on the fresh food lower door hinge).
This refrigerator is equipped with a door opening/
closing feature. This feature consists of a spring-
loaded arm located at the bottom of the cabinet for
each door. The arm provides a stop for the door
when the door is partially open and automatically
closes the door when the door is almost closed.
IMPORTANT: The refrigerator rollers must be
adjusted correctly for proper door closure. When
the rollers are adjusted correctly, the door should
close easily when open approximately 45 degrees
(halfway).
Airflow (Cabinet Interior)
The freezer cabinet is designed so that air is
drawn into the bottom of the air tunnel and through
the evaporator when the evaporator fan is
operating. The chilled air is then pushed out into
the top of the freezer.
The fresh food compartment receives chilled air
via an electronic damper that is positioned at the
top rear of the refrigerator between the freezer
cabinet and the fresh food cabinet. The damper is
controlled by the main control board and when
open, allows chilled air from the freezer air tunnel
to move into the fresh food air tower. The fresh
food air tower contains a fresh food fan which
draws chilled air from the freezer (through the
damper) into the air tower. The air tower directs
chilled air across the top of the fresh food cabinet
to two outlets. The air tower also directs chilled air
down the back wall of the fresh food cabinet. The
chilled air exits the air tower through vents in the
tower.
Air returns from the fresh food cabinet to the
freezer cabinet via a mullion located to the left of
the FRESH PRODUCE drawer.
AIR FLOW