Owner's Manual
Part Number: 04002909 Rev02 4/16  15
Interior Cleaning and Sanitizing
GENERAL
Clean and sanitize the ice machine every six months 
for efficient operation. If the ice machine requires more 
frequent cleaning and sanitizing, consult a qualified 
service company to test the water quality and recommend 
appropriate water treatment.
The ice machine must be taken apart for cleaning and 
sanitizing.
,
Caution
Use only Manitowoc approved Ice Machine Cleaner and 
Sanitizer. Using a non Manitowoc cleaner or sanitizer 
may result in bodily harm and/or cause damage to the 
ice machine that is not covered under the warranty. 
Do not use cleaner or sanitizer quantities that exceed 
the amounts listed in this manual. Do not use these 
solutions in a manner inconsistent with their labeling. 
Read and understand all labels printed on bottles before 
use.
Cleaning and Sanitizing Procedures
Ice machine cleaner is used to remove lime scale and 
mineral deposits. Ice machine sanitizer disinfects and 
removes algae and slime.
Control Operation
Pressing and holding the Clean button for 3 seconds starts 
the clean cycle. The Clean and On/Off lights energize 
indicating the clean cycle has started and ice making will 
automatically start when the clean cycle is complete.
•  Setting the ice machine to stop after the clean cycle: 
Press the On/Off button. The On/Off light will de-
energize, indicating the ice machine will stop after the 
clean cycle.
•  Pausing the cleaning cycle: Press the Clean button. 
The clean light will flash indicating the clean cycle has 
paused. Pressing the Clean button again will restart the 
clean cycle.
NOTE: If the ice damper is open for 2 seconds, the clean 
cycle will pause. If the damper is open for 30 seconds, the 
clean cycle will be canceled.
Step 1  Press the On/Off button after ice falls from the 
evaporator at the end of a harvest cycle. Or, press the On/
Off button and allow the ice to melt off the evaporator.
Step 2  Remove all ice from the bin.
Step 3   To start a cleaning cycle, 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 cleaner to the water trough.
Model Amount of Cleaner
U0140 2 ounces (60 ml)
U0190 5 ounces (150 ml)
U0240 5 ounces (150 ml)
U0310 5 ounces (150 ml)
Wait until the clean cycle is complete (approximately 
22minutes) then press the On/Off button and disconnect 
power and water supplies to the ice machine.
Step 4  Remove parts for cleaning.
Refer to the proper parts removal for your machine. 
Continue with step 6 when the parts have been removed.
Section 4
Maintenance










