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Electrical System | Section 6 |
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Component Specifications and Diagnostics
MAIN FUSE
Function
The control board fuse stops ice machine operation if electrical components fail causing high amp draw.
Specifications
The main fuse is 250 Volt, 7 amp.
Check Procedure
!Warning
High (line) voltage is applied to the control board (terminals #55 and #56) at all times. Removing the control board fuse or moving the toggle switch to OFF will not remove the power supplied to the control board.
1.If the bin switch light is on with the water curtain closed, the fuse is good.
!Warning
Disconnect electrical power to the entire ice machine before proceeding.
2.Remove the fuse. Check the resistance across the fuse with an ohm meter.
Reading | Result |
Open (OL) | Replace fuse |
Closed (O) | Fuse is good |
BIN SWITCH
Function
Movement of the water curtain controls bin switch operation. The bin switch has two main functions:
1.Terminating the harvest cycle and returning the ice machine to the freeze cycle.
This occurs when the bin switch is opened and closed again within 30 seconds during the harvest cycle.
2.Automatic ice machine
If the storage bin is full at the end of a harvest cycle, the sheet of cubes fails to clear the water curtain and holds it open. After the water curtain is held open for 30 seconds, the ice machine shuts off. The ice machine remains off until enough ice is removed from the storage bin to allow the sheet of cubes to drop clear of the water curtain. As the water curtain swings back to the operating position, the bin switch closes and the ice machine restarts, provide the
Important
The water curtain must be ON (bin switch(s) closed) to start ice making.
Specifications
The bin switch is a magnetically operated reed switch. The magnet is attached to the lower right corner of the water curtain. The switch is attached to the right bulkhead wall.
The bin switch is connected to a varying D.C. voltage circuit. (Voltage does not remain constant.)
NOTE: Because of a wide variation in D.C. voltage, it is not recommended that a voltmeter be used to check bin switch operation.
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