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Manitowoc MD0420A - Troubleshooting; Control Board Test Mode

Manitowoc MD0420A
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Part Number 040005626 5/17 49
Troubleshooting
Control Board Test Mode
NOTE: The water curtain/bin switch can be open or
closed and does not effect the operation of the test
mode.
To enter the test mode move the toggle switch to off,
then press and hold the test button on the control
board for 3 seconds. The control board test mode
performs the following functions for a 2 minute time
period:
Energizes all control board relays
Energizes all control board lights
After 2 minutes the control board will automatically
initiate and complete one ice making cycle, then stop.
Canceling a test cycle:
To cancel a test cycle press the test button a second
time.
Restarting a test cycle:
The test cycle will restart each time the test button is
pressed for a 3 second time period.

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