Hoshizaki KM-901MWH - Manual (Page 67)

67
Problem Possible Cause Remedy
[2] Cloudy or irregular
cubes.
a) Evaporator 1. Frozen up. 1. See chart 2.
2. Scaled up. 2. Clean
3. Damaged. 3. Replace.
b) Water System 1. Water supply line too
small; requires 3/8"
OD line dedicated per
machine.
1. Increase water line size.
2. Water filter clogged or
flow rate too small.
2. Replace filter or install a
higher flow rate filter.
3. High hardness or
contains impurities.
3. Install a water softener or
filter.
c) Spray Guide 1. Dirty. 1. Clean.
5. Other
Problem Possible Cause Remedy
[1] Icemaker will not stop
when bin is filled with
ice.
a) Thermostatic Bin
Control
1. Set too cold. 1. See "IV.C.1. Thermostatic
Bin Control Check."
2. Defective. 2. Replace.
b) Mechanical Bin Control 1. Movement restricted. 1. Check and free.
2. Loose connection. 2. Check and reconnect.
3. Defective 3. See "IV.C.2. Mechanical
Bin Control Check and
Cleaning."
c) Control Board ("G"
control board with
mechanical bin control)
1. Defective. 1. See "IV.B. Control Board
Check."
[2] Abnormal noise. a) Pump Motor 1. Bearings worn out. 1. Replace.
b) Fan Motor (except
water-cooled model)
1. Bearings worn out. 1. Replace.
2. Fan blade deformed. 2. Replace.
3. Fan blade does not
move freely.
3. Replace.
c) Compressor 1. Bearings worn out or
cylinder valve broken.
1. Replace.
2. Mounting pad out of
position.
2. Reinstall.
d) Refrigerant Lines 1. Rub or touch other
lines or surfaces.
1. Reposition.
[3] Ice in storage bin
often melts.
a) Drain Line(s) 1. Plugged. 1. Clean.
b) Icemaker and Bin 1. Drains not run
separately.
1. Separate the drain lines.
c) Ice Cube Guide 1. Out of position.
Circulated water falls
into bin.
1. Place in position.