Hoshizaki IM-240AME, Руководство по обслуживанию

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VII. SERVICE DIAGNOSIS
1. NO ICE PRODUCTION
PROBLEM CHECK POSSIBLE CAUSE REMEDY
1. OFF position. 1. Move to ON position.
2. Loose connections. 2. Tighten.
a) Power Source
3. Bad contacts. 3. Check for continuity and
replace.
1. Loose connection. 1. Tighten. b) Power Cord
2. Open circuit - damaged. 2. Repair or replace.
c) Fuse 1. Blown out. 1. Replace.
1. Tripped with Bin filled
with ice.
1. Remove ice.
2. Out of position. 2. Place in position.
d) Bin Control
3. Fused contacts. 3. Check for continuity and
repair or replace.
e) High Pressure
Control
1. Bad contacts. 1. Check for continuity and
replace.
f) Transformer 1. Coil winding opened. 1. Replace.
g) Wiring to
Controller Board
1. Loose connections or
open.
1. Check for continuity and
replace.
h) Thermistor 1. Leads short-circuit or
open and High
Temperature Safety
(Backup Timer) operates.
1. See “II. 2. [c] BEFORE
CHECKING
CONTROLLER BOARD”.
i) Hot Gas
Solenoid Valve
1. Continues to open in
freeze cycle and High
Temperature Safety
(Backup Timer) operates.
1. Check for power OFF in
freeze cycle and replace.
[1] The icemaker
will not start.
j) Controller Board 1. Defective. 1. See “II. 2. CONTROLLER
BOARD”.
1. Dirty Air Filter or
Condenser.
1. Clean.
2. Ambient or condenser
water temperature too
warm (water-cooled).
2. Check for recommended
temperatures.
3. Condenser water
pressure too low or OFF
(water-cooled).
3. Check for recommended
pressure.
4. Water Regulating Valve
set too high (water-
cooled).
4. Adjust it lower.
5. Fan not rotating. 5. See 4 - [2] - c).
6. Refrigerant overcharged. 6. Recharge.
7. Refrigerant line or
components plugged.
7. Clean and replace Drier.
8. Bad contacts. 8. Check for continuity and
replace.
a) Pressure Switch
9. Loose connections. 9. Tighten.
1. Set too high. 1. Adjust lower.
[2] Compressor
will not start, or
operates
intermittently.
b) Water Regulator
(water-cooled)
2. Clogged or defective. 2. Clean or replace.
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