Operation and Service Manual

26 Ice Manager Diverter Valve System Operation and Service Manual
Troubleshooting
Ice shortage with audible alarm
To silence audible alarm press any push buttons on the face of the control panel. Use the chart below to diagnose
the cause.
Control Panel Error Message Indicator or Possible Cause Corrective Action
Ice machine LED is ashing and
ICEMAKER ERROR message is
displayed
• Signal cable between Horizon ice
machine and diverter valve module
is not properly engaged
• Check the signal cable connections
• Horizon ice machine has shut off
on a SERVICE error
• Troubleshoot Horizon ice machine
Lane 1 or lane 2 LED is ashing
and SENSOR ERROR message is
displayed
• Malfunctioning sensor • Check supply and return dc voltage
at sensor connections. Supply
should read 12vdc between red
and black wires. Return should
read between .5 - 4.5 vdc between
yellow and black wires.
• Recycle power to sensor and see if
error clears.
Lane 1 or lane 2 LED is ashing
and SENSOR CONNECT ERROR
message is displayed
• Sensor is disconnected from a
signal cable
• Check sensor connections to cable
• Signal cable is disconnected from
diverter valve
• Check signal cable connection to
diverter valve
Both lane 1 and lane 2 LEDs are
alternately ashing and DIVERT
ERROR message is displayed
• Both upper (lane 1) and lower
(lane 2) magnetic positioning
switches mounted to the gearmotor
bracket inside the diverter valve are
in closed or open position at the
same time.
• Check both magnetic positioning
sensors. One should be closed
when it is engaged by the
positioning disc, while the other
should be open.
Note: To manually rotate the disc
depress the gearmotor brake.
DIVERT TO L1 or DIVERT TO L2
message is displayed
• Divert valve fails to switch to
another lane due to lane magnetic
positioning switch not closing
• Check to be sure magnetic
positioning switch is properly
connected to the control board
• Check the positioning switch for
continuity while it is engaged by
the positioning disc
• Diverter valve fails to switch to
another lane due to mechanical
jamming inside the diverter valve
• Manually switch between lane 1
and lane 2 to free divert paddle
• Mechanical linkage between the
gearmotor and divert paddle is
disconnected
• Check the linkage between the
gearmotor and divert paddle