Scotsman CME256 AutoIQ - Manual (Page 52)

CM 3 – not sensing water level – unit not starting
• Water Level Sensor and Float Stick
– Rising water lifts float and stick
– Slot in stick passes electric eyes
– When bottom of slot rises and blocks
bottom eye, signals Sump Full
• Test
– Must have correct stick! Check PN
– Lift stick slightly to simulate full sump
• If unit starts, control system good but
water level too low
– Or test with DC voltmeter