Manitowoc Manitowoc NEO U0140 Series, Installation, Operation And Maintenance Manual

20 

Part Number: 040005890 Rev 04  02/19

Maintenance 

Section 4

PREVENTATIVE MAINTENANCE CLEANING
This cleaning procedure can be performed between the bi-

annual cleaning and sanitizing cycles. This procedure does 

not require removing the ice from the bin.
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.

,

Caution

Never use anything to force ice from the evaporator. 

Damage may result.

Step 2  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 ounce (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 22 

minutes) then press the On/Off button.

ICE MACHINE INSPECTION
Check all water fittings and lines for leaks. Also, make sure 

the refrigeration tubing is not rubbing or vibrating against 

other tubing, panels, etc.
Do not put anything (boxes, etc.) in front of the ice machine. 

There must be adequate airflow through and around the 

ice machine to maximize ice production and ensure long 

component life.

EXTERIOR CLEANING
Clean the area around the ice machine as often as necessary 

to maintain cleanliness and efficient operation.
Sponge any dust and dirt off the outside of the ice machine 

with mild soap and water. Wipe dry with a clean, soft cloth.
Clean up any fallen ice or water spills as they occur.

CLEANING THE CONDENSER
A dirty condenser restricts airflow, resulting in excessively 

high operating temperatures. This reduces ice production 

and shortens component life.
•  Clean the condenser at least every six months.
•  Shine a flashlight through the condenser to check for 

dirt between the fins.

•  Blow compressed air from the inside out (opposite 

direction of airflow).

•  If dirt still remains, call a service agent to clean the 

condenser.

Removal from Service/Winterization

Step 1  Clean and sanitize the ice machine.
Step 2  Press the On/Off button to turn off the ice 

machine.
Step 3  Turn off the water supply, disconnect and drain 

the incoming ice-making water line at the rear of the ice 

machine, and drain the water trough.
Step 4  Energize the ice machine, wait one minute for the 

water inlet valve to open, and blow compressed air in both 

the incoming water and the drain openings in the rear of 

the ice machine to remove all water.
Step 5  Press the On/Off button and disconnect the 

electric power at the circuit breaker or the electric service 

switch.
Step 6  Fill spray bottle with sanitizer and spray all interior 

food zone surfaces. Do not rinse and allow to air dry.
Step 7  Replace all panels.