Manitowoc Ice Machine ID0686C

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

Observe curtain switch readings (Curt SW1, Curt SW2, etc.)

Curtain switch and control board light status

Curtain switch and control board light status after jumpering

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'

Does the water inlet valve completely stop water flow when the machine is off?

Press the Power button to energize the ice machine.

Is the water flow into the ice machine proper when the machine is on?

Refer to 'Water System Checklist' on page 134 if water flow issues are detected.

Visually inspect the PTCR for signs of physical damage

Wait at least 10 minutes for the PTCR to cool to room temperature

Remove the PTCR from the ice machine

Measure the resistance of the PTCR

Enter the resistance reading for Two Terminal PTCR Black

Enter the resistance reading for Two Terminal PTCR Blue

Enter the resistance reading for Three Terminal PTCR Tan

Check if the resistance readings are within the specified range

Inspect the bridge connecting the cubes for thickness

Is the bridge thickness approximately 1/8" (3 mm)?

Adjust the ice thickness probe adjustment screw if necessary

Place a 9/32" (7 mm) drill bit between the ice thickness probe and the evaporator for initial adjustment

Make final adjustments to achieve a 1/8" (3 mm) thick bridge

Ensure the ice thickness probe wire doesn’t restrict movement of the probe