Hoshizaki KM-2500SWH3 - Manual (Page 35)

35
F. Diagnostic Charts
1. No Ice Production
Problem Possible Cause Remedy
[1] The icemaker will not
start.
a) Power Supply 1. Off, blown fuse, or
tripped breaker.
1. Turn on, replace, or reset.
2. Loose connection. 2. Tighten.
3. Bad contacts. 3. Check for continuity and
replace.
4. Not within
specifications.
4. Refer to nameplate and
correct.
b) Transformer (main
transformer)
1. Voltage tap switch
does not match
incoming voltage.
1. Verify incoming voltage,
move switch to proper
setting.
2. Coil winding open or
shorted.
2. Replace.
c) Water Supply 1. Water supply off or
pressure too low.
1. Check and get
recommended pressure.
d) Bin Control Thermostat 1. Tripped with bin filled
with ice.
1. Remove ice.
2. Ambient temperature
too cool.
2. Increase ambient
temperature.
3. Set too warm. 3. See "IV.C. Bin Control
Check."
4. Bulb out of position. 4. Place in position.
5. Bad contacts. 5. Check for continuity and
replace.
e) Fuse (Control Box) 1. Blown. 1. Check for short circuit and
replace.
f) Control Switch 1. "OFF" or "WASH"
position.
1. Move to "ICE" position.
2. Bad contacts. 2. Check for continuity and
replace.
g) High-Pressure Control 1. Bad contacts. 1. Check for continuity and
replace.
2. Dirty air filter or
condenser.
2. Clean.
3. Ambient or condenser
water temperature too
warm.
3. Reduce temperature.
4. Refrigerant
overcharged.
4. Recover, evacuate, and
recharge.
5. Fan not operating
(except water-cooled
model).
5. See chart 1.[7]
6. Refrigerant line or
components restricted.
6. Clean and replace drier.
7. Condenser water
pressure too low or off
(water-cooled model).
7. Check and get
recommended pressure.