Hoshizaki KMS-1400MLH - Manual (Page 38)

38
Problem Possible Cause Remedy
[4] Water continues to
be supplied in freeze
cycle (outside of
refill).
a) Fill or Harvest Water
Valve
1. Diaphragm does not
close.
1. Check for water leaks with
icemaker off.
b) Control Board 1. Defective. 1. See "II.C.4. Control Board
Check Procedure".
[5] No water comes from
spray tubes. Water
pump will not start, or
freeze cycle time is
too short.
a) Water Supply Line 1. Water pressure too
low and water level in
water tank too low.
1. Check and get
recommended pressure.
b) Fill or Harvest Water
Valve
1. Dirty mesh filter or
orifice and water level
in water tank too low.
1. Clean.
c) Water System 1. Water leaks. 1. Check connections for
water leaks, and replace.
. Clogged. . Clean.
3. Drain valve leaking by. 3. Check assembly and
clean.
d) Pump Motor 1. Motor winding
opened.
1. Replace.
. Bearing worn out. . Replace.
3. Wiring to pump motor. 3. Check for loose
connection or open, and
replace.
4. Defective capacitor. 4. Replace.
5. Defective or bound
impeller.
5. Replace or clean.
6. Mechanical seal worn
out.
6. Check and replace.
e) Control Board 1. Defective. 1. See "II.C.4. Control Board
Check Procedure".
[6] Fan motor will
not start, or is not
operating.
a) Fan Motor 1. Motor winding
opened.
1. Replace.
. Bearing worn out. . Replace.
3. Wiring to fan motor. 3. Check for loose
connection or open, and
replace.
4. Defective capacitor. 4. Replace.
5. Fan blade bound. 5. Check and replace.
b) Magnetic Contactor 1. Bad contacts. 1. Check for continuity and
replace.
[7] All components
run, but no ice is
produced.
a) Refrigerant 1. Undercharged. 1. Check for leaks and
recharge.
. Air or moisture
trapped.
. Replace drier and
recharge.
b) Compressor 1. Defective valve. 1. Replace.
c) Hot Gas Valve 1. Continues to open in
freeze cycle.
1. Check and replace.
d) Liquid Line Valve 1. Continues to close in
freeze cycle.
1. Check and replace.
e) Fill or Harvest Water
Valve
1. Water valve is wide
open during freeze
(outside of refill).
1. Check for water leaks.