Safety Limit Feature - Manitowoc SD0302A Manuel D'installation, D'utilisation Et D'entretien

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Problem
Ice machine produces shallow or
incomplete cubes, or the ice fill pattern on
the evaporator is incomplete.
Low ice capacity.

Safety Limit Feature

In addition to the standard safety controls, such as the
high pressure cutout, your Manitowoc ice machine
features built-in safety limits which will stop the ice
machine if conditions arise which could cause a major
component failure.
Before calling for service, re-start the ice machine using
the following procedure:
30
Possible Cause
Ice thickness probe is out of adjustment.
Water trough level is too low.
Water inlet valve filter screen is dirty.
Water filtration is poor.
Hot incoming water.
Water inlet valve is not working.
Incorrect incoming water pressure.
Ice machine is not level.
Water inlet valve filter screen is dirty.
Incoming water supply is shut off.
Water inlet valve stuck open or leaking.
The condenser is dirty.
High air temperature entering condenser. Air temperature must not exceed 120°F
The harvest assist air compressor is not
functioning.
1. Move the ICE/OFF/CLEAN switch to OFF and then
2. Allow the ice machine to run to determine if the
Adjust the ice thickness probe.
(See Section 4)
Check the water level probe for damage.
(See Section 3)
Remove the water inlet valve and clean
the filter screen. (See Section 4)
Replace the filter.
Connect the ice machine to a cold water
supply. (See Section 2)
Replace the water inlet valve.
Water pressure must be 20-80 psi
(1.4 bar - 5.5 bar).
Level the ice machine. (See Section 2)
Remove the water inlet valve and clean
the filter screen. (See Section 4)
Open the water service valve.
Place toggle switch in OFF position, if
water continues to enter water trough
replace the water inlet valve.
Clean the condenser. (See Section 4)
(39°C).
Call for service.
back to ICE.
A. If the safety limit feature has stopped the ice
machine, it will restart after a short delay.
Proceed to step 2.
B. If the ice machine does not restart, see "Ice
machine does not operate" on the previous
page.
condition is recurring.
A. If the ice machine stops again, the condition has
recurred. Call for service.
B. If the ice machine continues to run, the condition
has corrected itself. Allow the ice machine to
continue running.
Section 5
To Correct
Part Number 000006520 11/11

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