Hoshizaki FM-170EE-HC Service Manual page 38

PROBLEM
[3] (Continued)
[4] Gear Motor
starts, but
Compressor
will not start or
operates
intermittently.
[5] Gear Motor
and
Compressor
start, but no ice
is produced.
CHECK
e) Gear Motor
Protect Relay
f) Pressure Switch
a) X2 Relay on
Control Timer
b) Starter
c) Start Capacitor or
Run Capacitor
d) Compressor
e) Power Supply
a) Refrigerant Line
POSSIBLE CAUSE
1. Coil winding opened.
2. Bad contacts.
1. Dirty Air Filter or
Condenser.
2. Ambient temperature
too warm.
3. Fan not rotating.
4. Refrigerant
overcharged.
5. Refrigerant line or
components plugged.
6. Bad contacts.
7. 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 earthed.
3. Motor Protector
tripped.
1. Circuit Ampacity too
low.
1. Gas leaks.
2. Refrigerant line
clogged.
35
REMEDY
1. Replace.
2. Check for continuity and
replace.
1. Clean.
2. Check for recommended
temperature.
3. See 3 - [1] - a).
4. Recharge.
5. Clean and replace Drier.
6. Check for continuity and
replace.
7. Tighten.
1. 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.