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Recommended quarterly cleaning of icemaking system
The icemaking system can be cleaned in place without disassembling the water system. This cleaning process
should be performed at least every 3 months, and more often if local water conditions dictate.
1. Disconnect power to icemaker.
2. Remove any icemaker panels required to gain access to water reservoir and electrical control box.
3. Turn compressor switch on electrical box of icemaker to OFF position.
4. Remove water reservoir cover and block up reservoir float.
5. Drain water from reservoir and evaporator by removing tygon hose from bottom of reservoir.
Note: Some models have an evaporator drain hose teed off evaporator supply hose.
6. Following manufacturer's instructions, prepare 3 pints (1.4L) of Calgon Ice Machine Cleaner or equivalent.
Cleaning solution temperature must be 65° – 85°F (18° – 29°C).
WARNING: Most ice machine cleaners contain citric or phosphoric acid which can
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cause skin irritation. Read caution label on product and follow instructions carefully.
7. Replace tygon hose on bottom of reservoir or plug evaporator drain hose, and pour part of cleaning solution
into reservoir, filling it almost to overflowing.
Note: If your icemaker has a stainless steel compression nozzle, remove it and submerge it in a cup of
cleaning solution while cleaning rest of system.
8. Restore power to icemaker (gearmotor will now run, but compressor and fan motor will not run).
9. After 15 minutes, turn power off and drain cleaning solution from reservoir and evaporator.
10. Replace tygon hose on reservoir, close evaporator drain valve or plug drain hose.
11. Rinse compression nozzle in clean water and reinstall on evaporator outlet.
12. Following manufacturer's instructions, prepare 1 gallon (3.8L) of Calgon Ice Machine Sanitizer or equivalent.
Sanitizing solution temperature must be 65° - 85°F (18° - 29°C).
13. If ice bin cleaning is also needed at this time, remove all ice from ice storage area and allow ice made during
the sanitizing process to fall into ice bin area.
Note: If bin will not be cleaned at this time, place a large pan in bin storage area to catch ice or connect a
separate ice transport tube to evaporator and divert ice into separate container.
14. Fill reservoir almost to overflowing with sanitizing solution.
15. Restore power to icemaker and turn compressor switch to ON position.
16. As unit starts to make ice, continue to pour sanitizing solution into reservoir, maintaining level just below
reservoir overflow.
17. Continue to make ice until you have used 1/2 gallon (1.9L) of sanitizing solution.
18. Unblock float, replace reservoir cover, and continue to make ice for at least 15 minutes to flush all sanitizing
solution from system (icemakers installed in remote locations with long ice transport hoses may take longer).
19. Switch compressor switch to OFF position.
20. Wash bin with remaining sanitizing solution and rinse with potable water.
21. Switch compressor switch to ON position.
22. Replace any panels removed prior to cleaning.
Important preliminary information
Follett's icemaker consists of four distinct functional systems.
• Refrigeration system
• Water system
• Harvesting system
• Electrical control system
These four systems work together to accomplish the production and harvesting of ice. A problem in any one of
these system areas will result in improper operation of the entire ice production cycle. When troubleshooting the
icemaker, it is important to analyze the entire system operation to determine which system is not functioning
properly, then pinpoint the component within that system that is malfunctioning. Determine what corrective action
must be taken before making any adjustments or replacing any components.
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