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45
C. Power Switch and Control Switch
The power switch and the control switch are used to control the icemaker. They are
located on the control box.
1. Power Switch
The power switch has 2 positions, "OFF" and "ON." When the power switch is in the
"OFF" position, no power is supplied to the components. When in the "ON" position,
power is supplied to the control transformer and control board. The control board then
supplies 5VDC to the control switch for unit operation.
2. Control Switch
The control switch has 2 positions, "ICE" and "DRAIN."
When the control switch is in the "ICE" position (open), icemaking begins.
When the control switch is in the "DRAIN" position (closed), the drain valve energizes.
a) ICE
When the control switch is in the "ICE" position, the control board reads an open
circuit through the control switch contacts and starts the icemaking process.
b) DRAIN
When the control switch is in the "DRAIN" position, the control board reads a closed
circuit through the control switch and the drain valve energizes.IV. Refrigeration Circuit
and Component Service Information
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