Hoshizaki 1800ALKE(-N), Руководство по обслуживанию

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IV. SERVICE DIAGNOSIS
Display error records by operating the operation board (see “III. 5. [d] DISPLAYING ERROR
LOG”). Check for a possible cause and service the unit.
1. NO ICE PRODUCTION
PROBLEM POSSIBLE CAUSE REMEDY
[1] The icemaker
will not start.
a) Power supply 1. OFF position. 1. Move to ON position.
2. Loose connections. 2. Tighten.
3. Bad contacts. 3. Check for continuity and
replace.
4. Blown fuse. 4. Replace.
5. Voltage too low. 5. Get recommended voltage.
b) Fuse 1. Blown out. No
indication on
operation board.
1. Locate and resolve the cause
of short circuit (ex. control
water valve, flush water
valve), and replace.
c) Transformer
receptacle
1. Disconnected. 1. Connect.
d) Operation switch 1. OFF position. 1. Move to ON position.
2. Bad contacts. 2. Check for continuity and
replace.
e) Transformer 1. Coil winding opened. 1. Replace.
f) Water valve 1. Coil winding opened. 1. Replace.
g) Water supply tap 1. Closed. 1. Open.
2. Water failure. 2. Wait till water is supplied.
h) Plug and
receptacle (control
box)
1. Disconnected. 1. Connect.
2. Terminal out of plug
or receptacle.
2. Insert terminal back in
position.
i) Reed switch
(spout)
1. Tripped. 1. See 1 - [3] - a).
j) Overload protector 1. Tripped. 2. Reset.
k) Model number 1. Incorrect. 2. Set correct number. See “III. 5.
[b] SETTING MODEL
NUMBER”.
[2] Water does not
stop, and the
icemaker will not
start.
a) Water control
relay (controller
board)
1. Contacts fused. 1. Replace controller board.
2. Coil winding opened. 2. Replace controller board.
b) Float switch 1. Bad contacts. 1. Check for continuity and
replace.
2. Float does not move
freely.
2. Clean or replace.
c) Flush water valve 1. Valve seat clogged
and water leaking.
1. Clean or replace.
d) Hoses 1. Disconnected. 1. Connect.
e) Mechanical seal 1. Water leaks. 1. Replace.
f) Reservoir 1. Cracked. 1. Replace.
[3] Water has been
supplied, but the
icemaker will not
start.
a) Bin control 1. Bad contacts. 1. Check for continuity and
replace.
b) Gear motor
protector (thermal
breaker)
1. Tripped. 1. Find out the cause, resolve it,
and press reset button on
motor protector.
c) Controller board 1. Defective. 1. Replace.