128 Part Number: 000015431 Rev01 5/19
Control Board Diagnostics
1. Micro light is not flashing.
2. Disconnect line voltage power supply to the ice
machine and wait a minimum of 15 seconds, then
reapply power.
A. Micro light flashes - continue with step 3.
B. Micro light is off - Test fuse for continuity. If fuse
tests good replace control board.
3. Perform a control board self-test.
• Menu / Service / Diagnostics / Control Board / Self
Check
The control board performs a self test. As the test
progresses the display will show pass or fail as the tests are
completed.
• Status passed -The control board is functioning
normally, continue with touchscreen diagnostics on
next page.
• Status failed - Replace control board.
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