Sub Zero Ice Machine Slow/Low Ice Production – How to fix? by ApplianceRepairLosAngeles.net

How to Use the Troubleshooting Guide 3 The list below indicates how the Troubleshooting Guide is arranged. Identify the description of the problem that the unit is experiencing from the list and go to the page indicated. To the left of the problem description is a letter. Locate that letter in the left column of the Troubleshooting Guide. The center column will identify the possible causes for the problem. And, the information in the right column will explain what tests to perform in order to determine if what you are checking is the cause and/or what action to take to correct the problem.

Problem Posible Cause TEST / ACTION
Ice Machine Slow/Low Ice Production Heavy/Frequent Ice Consumption 12 – 24 hours to fill bin is normal. Heavy/frequent ice consumption will slow refill process. Advise customer.
Improper Ambient Temperatures Ambient air temperature minimum = 50°F (10°C), maximum = 100°F (38°C) for models UC-15I and UC-15IP; 110°F (43°C) for models UC-15IO and UC-15IPO. Advise customer. NOTE: Check control board light to see if ice machine shutdown on over temperature limit (control board light will flash rapidly).
Improper Water Temperatures Water temperature minimum = 50°F (10°C), maximum = 80°F (27°C). Ice production slows with warmer water. Advise customer.
Poor or No Airflow Through Condenser a. Check for obstructions in vents of kickplate. Move/clear obstruction. b. Check condenser. Clean if dirty. c. Check for loose or broken condenser fan blade. Repair or replace blade. d. Check condenser fan motor wire connections. Repair or reconnect wiring. e. Check operation of condenser fan motor. Replace if defective.
Bin Drain Restricted, Melting Ice in Bin Clean out bin drain and/or check installation for kinks in drain line.
Water Filter Clogged Check water filter. Replace if clogged.
Water Escaping from Water Trough a. Check water trough for leaks. Reposition trough or replace. b. Check standpipe position. Reposition standpipe
Water Inlet Valve Fault a. Check screens in water valve for obstructions. Clean screens or replace valve. b. Check for loose wiring connections at water valve. Repair connections. c. Switch ice machine OFF. If water continues to enter machine, and water pressure is good, replace valve.