Hoshizaki FD-1001MLH(-C) Service Manual page 72

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