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C. Control Board
•A Hoshizaki exclusive control board is employed in Hoshizaki Stackable Crescent
Cubers.
•All models are pretested and factory set.
•For a control board check procedure, see "IV.B. Control Board Check."
CAUTION
1. The control board is fragile; handle very carefully.
2. The control board contains integrated circuits, which are susceptible to failure
due to static discharge. It is especially important to touch the metal part of
the unit before handling or replacing the control board.
3. Do not touch the electronic devices on the control board or the back of the
control board.
4. Do not change wiring and connections. Do not misconnect K3, K4, and K5,
because the same connector is used for all three.
K3 = Thermistor
K4 = Jumper (4A4883G01) on KM-1601SAH/3 "G" control board
K4 = Open on KM-1601SWH/3 and KM-1601SRH/3 "E" control board
K5 = Float Switch
5. Always replace the whole control board assembly if it goes bad.
6. Do not short out power supply to test for voltage.