Hoshizaki DCM-270BAH Service Manual page 22

PROBLEM
a) Fan Motor
[5] Fan Motor
will not start.
b) Timer
a) Water supply
[6] No water or
poor flow.
b) Water Valve
c) Float Switch
d) Water Control Relay
e) Bin Control Switch
f) Ice Making Switch
[7] Ice dispenser a) Float Switch
will not stop
even if out of b) Water Control Relay
water.
POSSIBLE CAUSE
1) Motor winding opened.
2) Bearing worn out.
3) Wiring to Fan Motor.
4) Fan blade bound.
1) Bad contacts (X2 Relay).
2) X2 Relay coil winding
opened.
3) Loose connections.
1) Water failure or pressure
too low.
2) Shut-off Valve closed or
restricted.
1) Clogged filter.
2) Coil winding opened.
1) Contacts fused.
2) Clogged.
1) Bad Contacts (Terminal
Nos. 1 and 5).
2) Contacts fused (Terminal
Nos. 3 and 5).
1) Bad contacts.
1) "OFF" position.
2) Bad contacts.
1) Contacts fused.
2) Clogged.
1) Contacts fused (Terminal
Nos. 4 and 6).
22
REMEDY
1) Replace.
2) Replace.
3) Check for loose connec-
tion or open, and replace.
4) Check and replace.
1) Check for continuity and
replace.
2) Replace.
3) Tighten.
1) Wait until water is sup-
plied, or adjust the
pressure range within
10-113 PSIG.
2. Open.
1) Clean.
2) Replace.
1) Replace.
2) Clean.
1) Check for continuity and
replace.
1) Replace.
1) Check for continuity and
replace.
1) Move to "ON" position.
2) Check for continuity and
replace.
1) Replace.
2) Clean.
1) Replace.