Hoshizaki KM-1301SAH/3 User Manual download pdf (Page 52)

5

Diagnosis: If PM does not reverse, check to see if CB S4 and S5 dip switch settings

are in the factory default position. If S4 dip switch 3 and 4 are adjusted to 3 off and

4 on, WV and harvest pump timer relays energize. Once these relays energize, the

pump motor rotates in the freeze cycle rotation. See "III.B. Wiring Diagrams." Check

PM circuit and capacitor, check #5 pin (DBu wire) on CB K1 ten-pin connector for

voltage, harvest pump timer X1 and X relays (auxiliary code T-0 and U-0), X10 and

X11 relays (auxiliary code U-1 and later). If water does not pump out, check and clean

the check valve assembly and tubing.

7) Normal Harvest Cycle – same as the initial harvest cycle – Return to "IV.A.4) Initial

Harvest Cycle."

8) Shutdown

When the unit is running hold ice in contact with the thermostatic bulb, the thermostatic

BC switch opens within 10 seconds, shutting down the unit. The bin control is factory

set, and generally no adjustment is required. However, adjustment may be needed in

some conditions, particularly at higher altitude locations. Diagnosis: See "IV.C. Bin

Control Check."

Legend: BC–bin control; CB–control board; Comp–compressor; FM–fan motor;

FMR–fan motor-remote; F/S–oat switch; HGV–hot gas valve; HM–headmaster

(C.P.R.); LLV–liquid line valve; PM–pump motor; TXV–thermostatic expansion

valve; WV–inlet water valve

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Hoshizaki KM-1301SAH/3 User Manual Page 52