Hoshizaki TM-500AAE, Руководство по обслуживанию

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PROBLEM POSSIBLE CAUSE REMEDY
b) Controller Board 1. Broken. 1. Replace.
1. Dirty Condenser fins. 1. Clean.
2. Ambient temperature
too warm.
2. Check for recommended
temperature.
3. Fan not rotating. 3. See 3 - [1] - a).
4. Refrigerant
overcharged.
4. Recharge.
5. Refrigerant line or
components plugged.
5. Clean and replace Drier.
6. Bad contacts. 6. Check for continuity and
replace.
[3] (Continued)
c) Pressure Switch
7. Loose connections. 7. Tighten.
1. Loose connections. 1. Tighten.
2. Motor winding opened
or earthed.
2. Replace.
a) Gear Motor
3. Motor Protector
tripped.
3. Find out the cause of
overheat or overcurrent.
b) Power Supply 1. Circuit Ampacity too
low.
1. Install a larger-sized
conductor.
[4] Compressor
starts, but Gear
Motor will not
operate after 15
seconds.
c) Controller Board 1. Broken. 1. Replace
1. Gas leaks. 1. Check for leaks with a leak
detector. Reweld leak,
replace Drier and
Mechanical Seal, and
charge with refrigerant.
The amount of refrigerant is
marked on Nameplate or
Label.
a) Refrigerant Line
2. Refrigerant line
clogged.
2. Replace the clogged
component.
1. Bad contacts. 1. Check for continuity and
replace.
2. Loose connections. 2. Tighten.
[5] Gear Motor and
Compressor
start, but no ice
is produced.
b) Line Valve
3. Broken. 3. Replace.
2. LOW ICE PRODUCTION
PROBLEM POSSIBLE CAUSE REMEDY
1. Gas leaks. 1. See 1 - [5] - a).
2. Refrigerant line
clogged.
2. Replace the clogged
component.
a) Refrigerant Line
3. Overcharged. 3. Recharge.
1. Dirty Air Filter or
Condenser.
1. Clean.
2. Ambient temperature
too warm.
2. Check for recommended
temperature.
b) High-side
Pressure Too
High
3. Fan rotating too slow. 3. See 3 - [1] - a).
c) Expansion Valve 1. Low-side pressure
exceeding the limit.
1. Adjust or replace.
[1] Low ice
production.
d) Evaporator 1. Evaporator deformed. 1. Replace.