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Controls and Indicators
HotCup Operators’ Guide
6740001
10
November, 2007
MAIN CONTROLLER DISPLAY
Main Controller PCB Display.  This display consists of two light emitting diodes (LED) mounted on 
the controller PCB.
POWER ON
(LED 1)
When lit, this red LED indicates electrical power is applied to the controller 
PCB.
HEARTBEAT
(LED 2)
When flashing, this red LED indicates that the controller PCB is active, and 
the software is operating.
LED1 LED2
MAIN CONTROLLER
PCB ASSEMBLY
POWER ON
(LED 1)
FLASHING
HEARTBEAT
(LED 2)
NORMAL CONDITIONS:
When the merchandiser is operating normally, you should see a 
steady red POWER ON indicator.  The red HEARTBEAT indicator 
ERROR CONDITIONS:
If an error is present, the red HEARTBEAT indicator will  flash 
with an unbalanced on/off pattern (on longer than it is off).  The