Door Switches; Master Light Switch (Sabbath Switch); Temperature Overload Device (Tod) - GE ZIS360NM Technical Service Manual

Door Switches

The fresh food and freezer door switches are located at the top of the fresh food and freezer
compartments.
The fresh food door switch closes when the door is open, providing L1 to the fresh food compartment
light transformer.
The freezer door switch is a dual-pole switch. It provides L1 to the main control board when the freezer
door is closed. When the freezer door is open, the switch provides L1 to the freezer compartment light
transformer.

Master Light Switch (Sabbath Switch)

The master light switch is located behind the grille
panel, on the main control board cover. The
switch will open the circuits between the door
switches and the transformers, disabling both
transformers and stopping voltage output to the
interior lights.

Temperature Overload Device (TOD)

A temperature overload device is wired in series with both the fresh food and freezer compartment
transformers. If the interior lights should reach excessive temperatures due to a door being open for an
extended period, the corresponding TOD will open the circuit that supplies 120 VAC to the transformer.
The TOD will open at 150 °F and close at 90 °F.
The freezer TOD is located behind a metal cover on the back wall of the freezer compartment, at the
base of the light tower. The fresh food TOD is located on the back wall of the fresh food compartment,
at the base of the light tower.
Temperature Overload
Temperature Overload
Device (TOD) Device (TOD)
Light Tower
Freezer Compartment
Master Light Switch Master Light Switch
Temperature Overload Temperature Overload
Device (TOD) Device (TOD)
Fresh Food Compartment
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(Sabbath Switch) (Sabbath Switch)
Main Control
Main Control
Board Cover
Board Cover
Light Tower