Manitowoc SD0302A Technician's Handbook page 121

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Findings
The inlet of the harvest
valve is cool enough to
touch and the
compressor discharge
line is hot.
Cool & Hot
The inlet of the harvest
valve is hot and
approaches the
temperature of a hot
compressor discharge
line.
Hot & Hot
Both the inlet of the
harvest valve and the
compressor discharge
line are cool enough to
touch.
Cool & Cool
5. Record your findings on the table.
Part Number 80-1479-3 7/10
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Comments
This is normal as the discharge
line should always be too hot to
touch and the harvest valve
inlet, although too hot to touch
during harvest, should be cool
enough to touch after 5 minutes
into the freeze cycle.
This is an indication something
is wrong, as the harvest valve
inlet did not cool down during
the freeze cycle. If the
compressor dome is also
entirely hot, the problem is not a
harvest valve leaking, but rather
something causing the
compressor (and the entire ice
machine) to get hot.
This is an indication something
is wrong, causing the
compressor discharge line to be
cool to the touch. This is not
caused by a harvest valve
leaking.
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