Hoshizaki DCM-500BAH Service Manual page 39

Problem
[1] The icemaker will
not start. (Fill Cycle)
(continued)
[] Fill cycle will not
terminate.
Possible Cause
m) High Pressure Switch
n) Plug and Receptacle
(Control Box)
o) Control Board
a) Water Supply
b) Float Switch
c) Water Control Relay
d) Drain Valve
e) Hoses
f) Control Board
1. Bad contacts.
. Dirty air filter or
condenser.
3. Ambient or condenser
water temperature too
warm.
4. Refrigerant
overcharged.
5. Fan not operating
(except water-cooled
model).
6. Refrigerant line or
components restricted.
7. Condenser water
pressure too low or off
(water-cooled model
only).
8. Water regulating
valve set too high
(water-cooled model
only).
1. Disconnected.
. Loose terminal.
1. Defective.
1. Water supply off or
pressure too low.
1. Connector
disconnected.
. Float does not move
freely.
3. Defective switch.
1. Contacts sticking.
. Coil winding open.
1. Valve seat won't seal
and water leaking.
1. Disconnected or
damaged.
1. Defective.
39
Remedy
1. Check for continuity and
replace.
. Clean.
3. Reduce temperature.
4. Recover, evacuate, and
recharge.
5. See "3.[]a) Fan Motor."
6. Remove the restriction or
component and replace
the drier.
7. Check and get
recommended pressure.
8. Adjust it lower.
1. Connect.
. Repair terminal
connection.
1. See "II.D.4. Control Board
Check Procedure."
1. Check and get
recommended pressure.
1. Reconnect.
. Clean or replace.
3. Check and replace.
1. Replace.
. Replace.
1. Clean or replace.
1. Reconnect or replace.
1. See "II.D.4. Control Board
Check Procedure."