Control System; Control Console; Temperature Encoder; Temperature Touch Panel - GE GTRS0 Series Technical Service Manual

CONTROL SYSTEM

Control Console

The control console, located at the top front of
the fresh food compartment, contains an
encoder (knob version) or a touch panel.
Remove the control console by removing 4 (1/4-
in.) hex head screws. Use care when
disconnecting the wire connectors from the
encoder or touch panel.

Temperature Encoder

The temperature encoder (knob version)
receives switched DC voltage from the main
control board. There are two possible failure
modes - both are open circuits.
An open circuit from the supply side results in
the refrigerator defaulting to midpoint. The
supply side consists of pins 1 and 2.
An open circuit from the return side results in
inconsistent run mode. The return side consists
of pins 3 and 6.
Failure of the fresh-food-only side results in the
fresh food defaulting to midpoint.
Failure of the freezer side results in the freezer
defaulting to midpoint.

Temperature Touch Panel

The temperature touch panel receives switched
DC voltage from the main control board.
Failure of input results in default to most recent
setting. Input consists of pins 2 to 3.
Failure of output results in erratic control.
Output consists of pin 1.
ADJUST FREEZER TEMP
COLDER WARMER
ADJUST FREEZER TEMP
COLDER WARMER
– 32 –
5 5
9 IS COLDEST
ADJUST FREEZER TEMP ADJUST REFRIGERATOR TEMP
ADJUST REFRIGERATOR TEMP
ACTIVATE LOCK
HOLD
COLDER
3 SECS
9 IS 9 IS
COLDEST COLDEST
ACTIVATE LOCK ADJUST REFRIGERATOR TEMP
HOLD
COLDER
3 SECS
9 IS 9 IS
COLDEST
COLDEST
WARMER
WARMER