Manitowoc Ice Machine ICVD1496

Press the power button and stop ice making

Check the water trough during freeze mode to determine if the dump valve is leaking

If the dump valve is leaking, remove, disassemble and clean it

If the dump valve is not leaking, follow the 'Ice Machine Cleaning Procedure'

Verify fan motor windings are not open or grounded, and fan spins freely

Connect manifold gauges to ice machine

Hook voltmeter in parallel across the fan cycle control, leaving wires attached

Check continuity between terminals and compressor shell or copper refrigeration line

Scrape metal surface to ensure good contact

Is continuity present between any terminal and the compressor shell or copper refrigeration line?

Determine if compressor windings are grounded and if the compressor should be replaced

Verify bin switch, curtain/damper, and curtain/damper magnet are in place

Scroll down to Service and press right arrow

Scroll down to Diagnostics and press right arrow

Scroll down to Inputs and press right arrow to display curtain switch readings (Curt SW1, Curt SW2, etc)

Open and close the ice damper(s) repeatedly while observing the display and control board lights

Curtain switch cycles open/closed and control board light energizes/de-energizes

Curtain switch remains closed and control board light remains on

Perform keystrokes on the display

Press Menu, scroll down to Service and press the right arrow

Scroll down to Diagnostics, press the right arrow and select Diagnostics

Display reads Control Board, press right arrow

Scroll down to enbl relays and press right arrow to start control board test

Verify control board relays are energized

Test for line voltage at the individual components

Is line voltage present and the component non-functional?