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18 Part Number:040005890 Rev 07 08/22
Maintenance Section 4
Step 5 Mix a solution of de-scaler and warm water.
Depending on the amount of mineral buildup, a larger
quantity of solution may be required. Use the ratio in the
table below to mix enough solution to thoroughly clean all
parts.
Solution Type Water Mixed with
De-scaler 1 gal. (4 l)
16 oz (500 ml) de-
scaler
,
Caution
Do not immerse electrical connectors or motors for any
components in water, de-scaler, or sanitizer solutions.
Use half of the de-scaler and water solution to clean all
components. The de-scaler solution will foam when it
contacts lime scale and mineral deposits; once the foaming
stops, use a soft bristle brush, sponge, or cloth (not a wire
brush) to carefully clean the parts. Soak the parts for 5
minutes (15 – 20 minutes for heavily scaled parts). Rinse all
components with clean water.
Step 6 While components are soaking, use half of the
de-scaler and water solution to clean all foodzone surfaces
of the ice machine and bin. Use a nylon brush or cloth to
thoroughly clean the following ice machine areas:
• Evaporator plastic parts – including top, bottom, and
sides
• Bin bottom, sides, and top
Rinse all areas thoroughly with clean water.
Step 7 Mix a solution of sanitizer and warm water.
Solution Type Water Mixed With
Sanitizer 3 gal. (12 l) 2 oz (60 ml) sanitizer
Use half of the sanitizer and water solution to sanitize all
removed components. Use a spray bottle to liberally apply
the solution to all surfaces of the removed parts or soak the
removed parts in the sanitizer and water solution. Do not
rinse parts after sanitizing.
Step 8 Use half of the sanitizer and water solution to
sanitize all foodzone surfaces of the ice machine and bin.
Use a spray bottle to liberally apply the solution. When
sanitizing, pay particular attention to the following areas:
• Evaporator plastic parts - including top, bottom, and
sides
• Bin bottom, sides, and top
Do not rinse the sanitized areas.
Step 9 Apply food grade lubricant to all o-rings, then
replace all removed components. Wait 10 minutes and then
reapply power and water to the ice machine
Step 10 Press the Clean button. Water will flow through
the water dump valve and down the drain. Wait until the
water trough refills, then add the proper amount of ice
machine sanitizer to the water trough.
Model Amount of Sanitizer
U0140 1 ounce (30 ml)
U0190 2 ounces (60 ml)
U0240 2 ounces (60 ml)
U0310 2 ounces (60 ml)
Wait until the sanitize cycle is complete (approximately 22
minutes) then press the Ice button to start ice making.
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