Hoshizaki MODULAR FLAKER F-1000MAF/-C Service Manual page 51

PROBLEM
[4] Water has been
supplied, Fan Motor
starts, but Gear
Motor and
Compressor will not
start.
[5] Gear Motor and
Compressor start
but operate
intermittently.
[6] Gear Motor starts,
but Compressor will
not start or operates
intermittently.
[7] Gear Motor and
Compressor start,
but no ice is
produced.
POSSIBLE CAUSE
a) Gear Motor Fuse
(BUSSMAN GMD
1.5A)
b) Thermal Protector
(Gear Motor)
a) Pressure Switch
a) X2 Relay on Control
Timer
b) Starter
c) Start Capacitor or
Run Capacitor
d) Compressor
e) Power Supply
a) Refrigerant Line
1. Blown Fuse.
1. Bad contacts.
1. Dirty Air Filter or
Condenser.
2. Ambient or
condenser water
temperature too
warm.
3. Condenser water
pressure too low or
off. (Water-cooled
model only)
4. Water Regulating
Valve set too high.
(Water-cooled model
only)
5. Fan not rotating.
6. Refrigerant
overcharged.
7. Refrigerant line or
components
plugged.
8. Bad contacts.
9. Loose connections.
1. Bad contacts.
2. Coil winding opened.
1. Bad contacts.
2. Coil winding opened.
3. Loose Connections.
1. Defective.
1. Loose connections.
2. Motor winding
opened or grounded.
3. Motor Protector
tripped.
1. Circuit Ampacity too
low.
1. Gas leaks.
2. Refrigerant line
clogged.
51
REMEDY
1. See "3. [3]." Find out
the cause and replace
the Fuse.
1. Check for continuity
and replace.
1. Clean.
2. Get cooler.
3. Check and get
recommended
pressure.
4. Adjust it lower.
5. See "3. [1] a) Fan
Motor."
6. Recharge.
7. Clean and replace
drier.
8. Check for continuity
and replace.
9. Tighten.
1. Replace.Check for
continuity and replace.
2. Replace Timer.
1. Check for continuity
and replace.
2. Replace.
3. Tighten.
1. Replace.
1. Tighten.
2. Replace.
3. Find out the cause of
overheat or
overcurrent.
1. Install a larger-sized
conductor.
1. Check for leaks with a
leak detector. Reweld
leak, replace drier and
charge with
refrigerant. The
amount of refrigerant
is marked on
Nameplate or Label.
2. Replace the clogged
component.