Hoshizaki FD-1001MWH(-C) EN - Manual (Page 72)

72
Problem Possible Cause Remedy
[1] The icemaker will not
start (continued).
i) High Pressure Switch
(continued)
7. Condenser water
pressure too low or off
(water-cooled model).
7. Check and get
recommended pressure.
8. Water regulating
valve set too high
(water-cooled model).
8. Adjust it lower.
j) Control Switch 1. "DRAIN" position. 1. Move to "ICE" position.
2. Bad contacts. 2. Check for continuity and
replace.
k) Inlet Water Valve 1. Coil winding opened. 1. Replace.
l) Control Board 1. Defective. 1. See "IV.B. Diagnostic
Procedure."
[2] Fill cycle will not
terminate.
a) Float Switch 1. Bad contacts. 1. Check for continuity and
replace.
2. Float does not move
freely.
2. Clean or replace.
b) Drain Water Valve 1. Valve seat clogged
and water leaking.
1. Clean or replace.
c) Hoses 1. Disconnected. 1. Connect.
d) Control Board 1. Defective. 1. See "IV.B. Diagnostic
Procedure."
[3] Ice purge cycle will
not start.
a) Control Board 1. Defective. 1. See "IV.B. Diagnostic
Procedure."
b) Gear Motor Fuse 1. Blown. 1. Check gear motor
amperage, bearing wear
(see "V.D.1. Upper Bearing
Wear Check"), supply
voltage.
c) Gear Motor Thermal
Protector
1. Open. 1. Check gear motor bearings,
voltage supply.
d) Gear Motor Protect
Relay
1. Open windings. 1. Replace.
2. Open or stuck
contacts.
2. Replace.
e) Gear Motor 1. Open windings. 1. Replace.
2. Auger coupling broke. 2. Replace.
3. Locked bearings.
3. Replace.
[4] Freeze cycle will not
start (compressor).
a) Control Board 1. Defective. 1. See "IV.B. Diagnostic
Procedure."
b) Starter (start relay) 1. Bad contacts. 1. Check for continuity and
replace.
2. Coil winding opened. 2. Replace.
3. Loose connections. 3. Tighten.
c) Start Capacitor or Run
Capacitor
1. Defective, weak. 1. Replace.