Hoshizaki F-300BAF - Manual (Page 29)

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B. Diagnostic Charts
1. No Ice Production
Problem Possible Cause Remedy
[1] The icemaker will not
start. (fill cycle, water
valve)
a) Power Supply 1. Off. 1. Turn on.
2. Power cord
unplugged.
2. Plug into receptacle.
3. Loose connection. 3. Tighten.
4. Bad contacts. 4. Check for contintinuity and
replace.
5. Blown fuse. 5. Replace.
b) Power Switch
(Control Box)
1. OFF position. 1. Move to ON position.
2. Bad contacts. 2. Check for continuity and
replace.
c) High Pressure Switch 1. Dirty air filter or
condenser.
1. Clean.
2. Ambient or condenser
water temperature too
warm.
2. Reduce temperature.
3. Condenser water
pressure too low or off.
(water-cooled model
only)
3. Check and get
recommended pressure.
4. Water regulating valve
set too high. (water-
cooled model only)
4. Adjust it lower.
5. Fan not rotating. 5. See "3. [1] a) Fan Motor.”
6. Refrigerant
overcharged.
6. Recharge.
7. Refrigerant line or
components plugged.
7. Clean and replace drier.
8. Bad contacts. 8. Check for continuity and
replace.
9. Loose connections. 9. Tighten.
d) Transformer 1. Coil winding opened. 1. Replace.
e) Spout Safety Switch
and Relay
1. Bin control not
activating.
1. Check bin control actuator
and proximity switch.
f) Fuse (Control Box) 1. Blown. 1. Check for short circuit and
replace.
g) Bin Control 1. Actuator sticking. 1. Adjust or replace.
2. Proximity switch open. 2. Replace.
h) Flush Switch 1. FLUSH position. 1. Move to ICE position.
2. Bad contacts. 2. Check for continuity and
replace.
i) Flush Switch Relay 1. Coil open. 1. Replace.