Before Calling For Service - Manitowoc QM30 Series Installation And Use Manual

Before Calling for Service

Problem
Ice machine produces
shallow or incomplete cubes,
or the ice fill pattern on the
evaporator is incomplete.
Low ice capacity.
5-2
Possible Cause
Water level is low.
Water inlet valve filter screen is dirty.
Water filtration is poor.
Hot incoming water.
Ice thickness adjustment dial is not set
properly.
Incorrect incoming water pressure.
Ice machine is not level.
Water inlet valve filter screen is dirty.
Incoming water supply is shut off.
The air filter is dirty.
The condenser is dirty.
Inadequate airflow at the front of the
ice machine.
Ice thickness adjustment dial is not set
properly.
Section 5
To Correct
Be sure the overflow tube is fully
seated to prevent water leakage.
See page 4-5.
Remove the water inlet valve and
clean the filter screen.
See page 4-6.
Replace the filter.
Connect the ice machine to a cold
water supply. See page 2-5.
Adjust the ice thickness adjustment
dial. See page 3-2.
Water pressure must be 240-620 kPA
(34.8 - 89.9 psi).
Level the ice machine.
See page 2-2.
Remove the water inlet valve and
clean the filter screen.
See page 4-6.
Open the water service valve.
Clean the air filter. See page 4-2.
Clean the condenser. See page 4-2.
Remove items blocking airflow at
the front of the ice machine.
Adjust the ice thickness adjustment
dial. See page 3-2.