Hoshizaki RELIABILITY IS A BEAUTIFUL THING DCM-270BAH-OS - Manual (Page 25)

25
4. Other
PROBLEM POSSIBLE CAUSE REMEDY
[1] a) Bin Control Switch 1. Contacts fused. 1. Replace.
2. Out of position. 2. Reinstall.
b) Water Control Relay 1. Contacts fused. 1. Replace.
c) Timer 1. Defective. 1. Replace.
[2] a) Water Supply 1. Water pressure too
high.
1. If pressure is consistently
too high, install a pressure
reducing valve.
b) Water Valve 1. Cannot close. 1. Clean or replace.
c) Float Switch 1. Bad contacts (red and
black leads).
1. Check for continuity and
replace.
2. Defective. 2. Replace.
d) Water Control Relay 1. Coil winding opened. 1. Replace.
2. Bad contacts (terminal
nos. 1 and 3)
2. Check for continuity and
replace.
[3] a) 1. Dirt stuck on seal
surface.
1. Clean or replace.
2. Worn out. 2. Replace.
[4] Abnormal noise. a) Fan Motor 1. Bearings worn out. 1. Replace.
2. Fan blade deformed. 2. Replace fan blade.
3. Fan blade caught on
foreign object.
3. Remove the object.
b) Compressor 1. Bearings worn out or
cylinder valve broken.
1. Replace.
2. Mounting pad out of
position.
2. Reinstall.
c) Refrigerant Lines 1. Rubbing or touching
lines or other surfaces.
1. Replace.
d) Gear Motor (Ice Making) 1. Bearing or gear worn
out / damaged.
1. Replace.
e) Evaporator 1. Scale on inside wall of
freezing cylinder.
1. See chart 2,[1], e)
f) Solenoid (Shutter) 1. Worn out. 1. Replace.
2. Foreign matter on
plunger surface.
2. Clean.
g) Water Valve 1. Foreign matter on
plunger.
1. Clean.
h) Extruding Head 1. Bearing worn out. 1. Replace.
i) Housing 1. Bearing worn out. 1. Replace.
Reservoir overflows
(water will not stop).
Ice dispenser will not
stop even if filled with
ice.
Mechanical Seal
(normally less than .017
fl. oz./hour) A lot of water drains
from gear motor drain
pipe.