Service Diagnosis - Hoshizaki DCM-500BAF Service Manual

V. SERVICE DIAGNOSIS
PROBLEM
[1] The icemaker will
not start.
[2] Ice dispensing
operates, but no ice
is produced.
[3] Water Valve
operates, but no ice
is produced.
[4] Compressor will not
start, or operates
intermittently.
POSSIBLE CAUSE
a) Power Supply
b) Power Switch
(Control Box)
c) Fuse (Control Box)
d) Door Switch (Control
Box)
a) Water Control Relay
b) Pressure Switch
c) Compressor
a) Shut-off Valve
b) Water Valve
c) Bin Control
d) Pressure Switch
e) Ice Making Switch
f) Compressor
a) Pressure Switch
1. OFF position.
2. Loose connection.
3. Bad contacts.
4. Blown fuse.
1. Off position.
2. Bad contacts.
1. Blown out.
1. Not activated.
2. Bad contacts.
1. Bad contacts.
2. Coil winding opened. 2. Replace.
1. Bad contacts.
2. Loose connections.
1. Does not start.
1. Closed.
2. Water failure.
1. Clogged.
1. Tripped with bin filled
with ice.
2. Out of position.
3. Bad contacts.
4. Activator removed.
1. Bad contacts.
2. Loose connections.
1. Bad contacts.
2. Loose connections.
1. Will not start.
1. Dirty Air Filter or
Condenser.
2. Ambient or
condenser water
temperature too
warm.
46
REMEDY
1. Move to ON position.
2. Tighten.
3. Check for continuity and
replace.
4. Replace.
1. Move to ON position.
2. Check for continuity and
replace.
1. Check for short circuit
and replace.
1. Replace Upper Front
Panel.
2. Check for continuity and
replace.
1. Check for continuity and
replace.
1. Check for continuity and
replace.
2. Tighten.
1. See "[4] Compressor
will not start, or
operates intermittently."
1. Open.
2. Wait till water is
supplied.
1. Clean. See "V. 2. [c]
WATER VALVE".
1. Remove ice.
2. Place in position.
3. Check for continuity and
replace.
4. Place in position.
1. Check for continuity and
replace.
2. Tighten.
1. Check for continuity and
replace.
2. Tighten.
1. See [4] Compressor will
not start, or operates
intermittently."
1. Clean. See "V. 3. 3) Air
Filter."
2. Get cooler.