Hoshizaki MODULAR CRESCENT CUBER KM-650MWH - Manual (Page 33)

33
Problem Possible Cause Remedy
[1] The icemaker will not
start. (continued)
e)High Pressure Control
(continued)
3. Ambient or condenser
water temperature too
warm.
3. Reduce temperature.
4. Refrigerant
overcharged.
4. Recharge.
5. Fan not operating.
(except water-cooled
model)
5. See chart 1.[6]
6. Refrigerant line or
components plugged.
6. Clean and replace drier.
7. Condenser water
pressure too low or off.
(water-cooled model
only)
7. Check and get
recommended pressure.
f) Transformer 1. Coil winding opened
or shorted.
1. Replace.
g)Wiring to Control Board 1. Loose connections or
open.
1. Check for continuity and
replace.
h)Thermistor 1. Leads shorted or
opened and high
temperature or harvest
backup timer safety
operates. (1 beep or 2
beep alarm)
1. See "II.C.3. Controls and
Adjustments, b) Harvest
Control."
i) Hot Gas Valve 1. Continues to open
in freeze cycle and
freeze timer safety
operates. (3 beep
alarm)
1. Check for hot gas valve
stuck open and replace.
j) Water Supply Line 1. Water supply off and
water supply cycle
does not finish.
1. Check and get
recommended pressure.
2. Condenser water
pressure too low
or off and pressure
control opens and
closes frequently to
finally operate high
temperature safety.
(1 beep alarm)
2. Check and get
recommended pressure.
k) Inlet Water Valve 1. Mesh filter or orifice
gets clogged and
water supply cycle
does not finish.
1. Clean.
2. Coil winding opened. 2. Replace.
3. Wiring to water valve. 3. Check for loose
connection or open, and
replace.
l) Control Board 1. Defective. 1. See "II.C.4. Control Board
Check Procedure."