Please review this manual. It should be read carefully before the icemaker is serviced or
maintenance operations are performed. Only qualified service technicians should service
and maintain the icemaker. This manual should be made available to the technician prior to
service or maintenance.
I. Specifications ...................................................................................................................... 5
II. General Information ........................................................................................................... 7
A. Construction .................................................................................................................. 7
B. Controller Board ............................................................................................................ 9
1. Solid-State Control .................................................................................................. 9
2. Controller Board ...................................................................................................... 9
3. Sequence .............................................................................................................. 13
III. Technical Information ...................................................................................................... 21
1. KM-320MAH .......................................................................................................... 21
2. KM-320MWH ......................................................................................................... 22
B. Wiring Diagram ............................................................................................................ 23
C. Timing Chart .............................................................................................................. 24
D. Performance Data ....................................................................................................... 26
1. KM-320MAH .......................................................................................................... 26
2. KM-320MWH ......................................................................................................... 27
IV. Service Diagnosis ........................................................................................................... 28
A. No Ice Production........................................................................................................ 28
C. Low Ice Production ..................................................................................................... 33
D. Abnormal Ice ............................................................................................................... 33
E. Other ........................................................................................................................... 33
1. Refrigerant Recovery ............................................................................................. 34
B. Brazing ........................................................................................................................ 35
CONTENTS
3