Only qualied service technicians should install and service the icemaker. To
obtain the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizaki.com. No service should be undertaken until
the technician has thoroughly read this Service Manual. Failure to service and
maintain the icemaker in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage and may result in costly water
damage. Proper installation is the responsibility of the installer. Product failure or
property damage due to improper installation is not covered under warranty.
Hoshizaki provides this manual primarily to assist qualied service technicians in the
service of the icemaker.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, send an e-mail message, or write to the Hoshizaki Technical
Support Department for assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
Web Site: www.hoshizaki.com
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem.
2
Page 3
IMPORTANT
This manual should be read carefully before the icemaker is serviced. Read
the warnings and guidelines contained in this booklet carefully as they provide
essential information for the continued safe use, service, and maintenance of the
icemaker. Retain this booklet for any further reference that may be necessary.
CONTENTS
Important Safety Information ................................................................................................. 5
I. Specications ...................................................................................................................... 7
A. C-100BAF ...................................................................................................................... 7
1. Auxiliary Codes A-1 and Earlier ................................................................................ 7
2. Auxiliary Codes A-2 and Later .................................................................................. 8
B. C-100BAF-DS ................................................................................................................ 9
1. Auxiliary Codes A-1 and Earlier ................................................................................ 9
2. Auxiliary Codes A-2 and Later ................................................................................ 10
C. C-100BAF-AD ..............................................................................................................11
1. Auxiliary Codes A-1 and Earlier ...............................................................................11
2. Auxiliary Codes A-2 and Later ................................................................................ 12
D. C-100BAF-ADDS ......................................................................................................... 13
1. Auxiliary Codes A-1 and Earlier .............................................................................. 13
2. Auxiliary Codes A-2 and Later ................................................................................ 14
II. General Information ......................................................................................................... 15
A. Construction ................................................................................................................ 15
2. Removal and Replacement of Extruding Head ...................................................... 42
3. Removal and Replacement of Auger ...................................................................... 43
4. Removal and Replacement of Evaporator .............................................................. 44
5. Removal and Replacement of Mechanical Seal and Lower Housing .................... 45
6. Removal and Replacement of Gear Motor ............................................................. 47
VI. Maintenance ................................................................................................................... 48
A. Maintenance Schedule ................................................................................................ 49
B. Cleaning and Sanitizing Instructions ........................................................................... 50
1. Auxiliary Codes A-1 and Earlier .............................................................................. 50
2. Auxiliary Codes A-2 and Later ................................................................................ 54
C. Storage Bin Drain ........................................................................................................ 57
D. Condenser ................................................................................................................... 58
VII. Preparing the Icemaker for Periods of Non-Use ............................................................ 59
VIII. Disposal ........................................................................................................................ 60
4
Page 5
Important Safety Information
Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, damage to the appliance, or damage to property.
WARNING Indicates a hazardous situation which could result in death or
serious injury.
NOTICE Indicates a situation which could result in damage to the
appliance or property.
IMPORTANT Indicates important information about the use and care of the
appliance.
WARNING
This icemaker should be destined only to the use for which it has been expressly
conceived. Any other use should be considered improper and therefore dangerous. The
manufacturer cannot be held responsible for injury or damage resulting from improper,
incorrect, and unreasonable use. Failure to service and maintain the icemaker in
accordance with this manual will adversely affect safety, performance, component life,
and warranty coverage and may result in costly water damage.
To reduce the risk of death, electric shock, serious injury, or re, follow basic
precautions including the following:
• Only qualied service technicians should install and service this icemaker.
• This icemaker must be installed in accordance with applicable national, state, and local
codes and regulations.
• This icemaker requires an independent power supply of proper capacity. See the
nameplate for electrical specications. Failure to use an independent power supply of
proper capacity can result in a tripped breaker, blown fuse, damage to existing wiring,
or component failure. This could lead to heat generation or re.
• THIS ICEMAKER MUST BE GROUNDED: This icemaker is equipped with a
NEMA5-15 three-prong grounding plug to reduce the risk of potential shock
hazards. It must be plugged into a properly grounded, independent 3-prong wall outlet.
If the outlet is a 2-prong outlet, it is your personal responsibility to have a qualied
electrician replace it with a properly grounded, independent 3-prong wall outlet. Do not
remove the ground prong from the power cord and do not use an adapter plug.
• Do not use an extension cord.
• To reduce the risk of electric shock, make sure the power switch is in the "OFF" position
before plugging in or unplugging the icemaker.
• To reduce the risk of electric shock, do not touch the power switch or plug with damp
hands.
• Do not use an icemaker with a damaged power cord. The power cord should not be
altered, jerked, bundled, weighed down, pinched, or tangled. Such actions could result
in electric shock or re. To unplug the icemaker, be sure to pull the plug, not the cord,
and do not jerk the cord.
• Do not make any alterations to the icemaker. Alterations could result in electric shock,
injury, re, or damage to the icemaker.
• Do not place ngers or any other objects into the ice discharge opening.
5
Page 6
WARNING, continued
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory, or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
• Young children should be properly supervised around this appliance.
• Do not climb, stand, or hang on the icemaker or icemaker door or allow children or
animals to do so. Serious injury could occur or the icemaker could be damaged.
• Be careful not to pinch ngers when opening and closing the door. Be careful when
opening and closing the door when children are in the area.
• Do not use combustible spray or place volatile or ammable substances near the
icemaker. They might catch re.
• Keep the area around the icemaker clean. Dirt, dust, or insects in the icemaker could
cause harm to individuals or damage to the icemaker.
NOTICE
• Protect the oor when moving the icemaker to prevent damage to the oor.
• Follow the instructions in this manual carefully to reduce the risk of costly water
damage.
• In areas where water damage is a concern, install in a contained area with a oor drain.
• Install the icemaker in a location that stays above freezing. Normal operating ambient
temperature must be within 45°F to 100°F (7°C to 38°C).
• If using the optional drain pump (HS-0248), test its operation every time the icemaker is
cleaned and sanitized. See "IV.E.2. Drain Pump Check" for details. If the optional drain
pump is not operating properly, water could back up and overow, leading to costly
water damage.
• To help ensure that the storage bin drain remains clear, follow the instructions in "VI.C.
Storage Bin Drain" once every 3 months or as often as necessary for conditions. If
the storage bin drain becomes clogged, water could build up in the bin and overow,
leading to costly water damage.
• If water collects in the bin and will not drain, turn off the icemaker and close the water
supply line shut-off valve. Locate and resolve the issue.
• To help protect against unseen water issues, this icemaker features a drip tray and
emergency overow hose. See Fig. 1. If there is water in the drip tray, coming out of
the reservoir emergency overow hose, or seeping from the base of the icemaker, turn
off the icemaker and close the water supply line shut-off valve. Locate and resolve the
issue. Failure to do so could lead to costly water damage.
• Do not leave the icemaker on during extended periods of non-use, extended absences,
or in sub-freezing temperatures. To properly prepare the icemaker for these occasions,
follow the instructions in "VII. Preparing the Icemaker for Periods of Non-Use."
• Keep ventilation openings, in the appliance enclosure or in the built-in structure, clear
of obstruction.
• Do not place objects on top of the icemaker.
• The storage bin is for ice use only. Do not store anything else in the storage bin.
6
Page 7
I. Specications
A
A
)
A
A. C-100BAF
1. Auxiliary Codes A-1 and Earlier
AC SUPPLY VOLTAGE115/60/1
AMPERAGE4.0 A
MINIMUM CIRCUIT AMPACITY15 A
MAXIMUM FUSE SIZE15 A
PPROXIMATE ICE PRODUCTION
PER 24 HR.Temp.(°F)507090
lbs./day ( kg/day
Reference without *marks 8081 (37)71 (32)66 (30)
SHAPE OF ICECubelet
ICE QUALITYApprox. 90%
PPROXIMATE STORAGE CAPACITY29 lbs. (13 kg) [Bin Control Setting 22 lbs. (10.0 kg)]
ELECTRIC & WATER CONSUMPTION90/70°F70/50°F
ELECTRIC W (kWH/100 lbs.)310 (12.1)297 (7.7)
WATER gal./24HR (gal./100 lbs.)7.7 (12)11.1 (12)
EXTERIOR DIMENSIONS (WxDxH)14.9" x 22.6" x 33.5" (378 x 575 x 850mm)
EXTERIOR FINISHStainless steel, Galvanized Steel (Rear)
WEIGHTNet 108 lbs. ( 49 kg ), Shipping 120 lbs. (54 kg)
CONNECTIONS - ELECTRICCord Connection
- WATER SUPPLYInlet 1/2" FPT
- DRAINOutlet 1/2" FPT
ICE MAKING SYSTEMAuger type
HARVESTING SYSTEMDirect Drive Auger (80W Gear Motor)
ICE MAKING WATER CONTROLMechanical float valve
COOLING WATER CONTROLN/A
BIN CONTROL SYSTEMThermostat
COMPRESSORHermetic, Model QA51K13GAU6
CONDENSER
EVAPORATORCopper Tube on Cylinder
REFRIGERANT CONTROLCapillary Tube
REFRIGERANT CHARGER134a 3.17 oz. (90 g)
DESIGN PRESSUREHigh 240 PSIG, Low 120 PSIG
P.C. BOARD CIRCUIT PROTECTIONN/A
COMPRESSOR PROTECTIONAuto-reset Overload Protector
GEAR MOTOR PROTECTIONManual reset Circuit Breaker
LOW WATER PROTECTIONSuction Temperature Safety
ACCESSORIES - SUPPLIEDIce Scoop; Drain Pump Adapter Hose
- REQUIREDN/A
- OPTIONDrain Pump
OPERATING CONDITIONSVOLTAGE RANGE104 - 127 V
29 lbs. (13 kg) [Bin Control Setting 22 lbs. (10.0 kg)]
Air-cooled, Fin and tube type
AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESSURE 7 - 113 PSIG
ETL
Note: We reserve the right to make changes in specications and design without prior
notice.
14
Page 15
II. General Information
A. Construction
1. Icemaker
Ice Discharge Opening
Bin Control
Thermostat Bulb
Slope
Gear Motor Protector
(External Overload)
Reset Switch
Power Switch
Air-Cooled Condenser and
Condenser Fan Motor
Reservoir Emergency Overow Hose
Auxiliary Codes A-2 and Later
Top Panel
Bin Control
Thermostat
Water
Reservoir
Upper
Rear
Panel
Suction
Temperature
Safety
Control Box
Front
C-100BAF-AD Shown
Float-Operated
Water Valve
Evaporator
Condensate
Drain Pan
Evaporator
Assembly
Upper
Rear
Panel
Gear Motor
Front Panel
Louver
Top Panel
Inlet Water Valve
Evaporator
Condensate
Drain Pan
Float Switch
Water
Reservoir
Bin Control
Thermostat
Drip
Tray
Evaporator
Assembly
Power
Cord
Lower
Rear
Panel
Compressor
Drier
Auxiliary Codes
A-1 and Earlier
Gear Motor
Drain Pan
Power
Cord
Rear
C-100BAF-AD Shown
Fig. 1
15
Lower
Rear
Panel
Compressor
Gear Motor
Drain Pan
Gear Motor
Drier
Auxiliary Codes
A-2 and Later
Page 16
2. Icemaking Unit
Cutter (motionless)
Socket Head Cap Screw
Extruding Head
and Upper
Bearing
Auger
Cylinder
Mechanical Seal
O-Ring
Evaporator Flange
Gear Motor
Insulation
Housing and
Lower Bearing
Spline Coupling
Hex Head
Bolt with
Washer
Socket Head
Cap Screw
with Washer
Fig. 2
16
Page 17
B. Sequence of Operation
1. Auxiliary Codes A-1 and Earlier
After the power switch is placed in the "ON" position, the steps in the sequence are as
outlined below.
a) Freeze Cycle
BCH, GM, FM, CR, and Comp energize. NOTICE! Some units contain a sticker that
states: "The bin control heater has been disconnected. DO NOT reconnect the
bin control heater." In this case, leave BCH disconnected or replace BC assembly
with 3A2561A03. Ice production starts 4 to 6minutes after Comp energizes depending
on ambient and water conditions. The freeze cycle continues until BC shuts down the
icemaker or power is turned off to the icemaker. Rell: The oat-operated WV allows
water into the reservoir as needed to continue the icemaking process. If the water supply
is cut off or GM stops during the freeze cycle, the cold evaporator temperature causes
STS to open and de-energize all components except BCH and optional drain pump
HS-0248.
b) Bin Control Thermostat Shutdown
Ice lls storage bin to level of BC. BC opens within 10 seconds after ice contact. When
BC opens, BCH remains energized. GM, FM, CR, and Comp de-energize. When ice level
lowers and BC closes, the icemaker starts operating again.
C-100BAF Series Sequence Flow Chart and Component Operation
(auxiliary codes A-1 and earlier)
Low Water/
Freeze-Up Safety
When STS closes,
icemaker restarts at
1. Freeze Cycle.
STS
open
BC closed
STS open
BCH continues
Comp de-energized
FM de-energized
GM de-energized
Power Switch
"ON"
BC closed
STS closed
BCH energized
Comp energized
FM energized
GM energized
1. Freeze Cycle
Rell
Float-operated WV allows
water into reservoir as needed.
BC closed
STS closed
BCH continues
Comp continues
FM continues
GM continues
Legend: BC–bin control thermostat; BCH–bin control heater; Comp–compressor;
CR–compressor relay; FM–fan motor; GM–gear motor; STS–suction temperature safety (low water/freeze-up safety); WV–inlet water valve
2. Shutdown
Bin Full
BC
open
BC open
STS closed
BCH continues
Comp de-energized
FM de-energized
GM de-energized
BC closed
17
Page 18
2. Auxiliary Codes A-2 and Later
After the power switch is placed in the "ON" position, the steps in the sequence are as
outlined below.
a) Fill Cycle
LF/S and UF/S open, BCH and WV energize. LF/S closes. Nothing happens at this time.
Reservoir continues to ll until UF/S closes.
b) Freeze Cycle
UF/S closes. BCH remains energized. WCR, TDR, GM, FM, CR, and Comp energize. WV
de-energizes. Ice production starts 4 to 6minutes after Comp energizes depending on
ambient and water conditions. F/S controls WV to rell as needed during the freeze cycle.
The freeze cycle continues until BC shuts down the icemaker or power is turned off to
the icemaker. Rell: As ice is produced, the water level in the reservoir drops and UF/S
opens. When UF/S opens, a latching circuit through LF/S and WCR keeps WCR, TDR,
GM, FM, CR, and Comp energized. When LF/S opens, WCR de-energizes, cutting power
to TDR terminal #5 (O wire) and starting FT. WV energizes. Water lls the reservoir, UF/S
closes. WCR energizes, restoring power to TDR terminal #5 (O wire) and resetting FT.
WV de-energizes. If UF/S remains open longer than 90 seconds, FT terminates, cutting
power to TDR terminal#9 (R wire). GM, FM, CR, and Comp de-energize. WV remains
energized until UF/S closes.
c) Bin Control Thermostat Shutdown
Ice lls storage bin to level of BC. BC opens within 10 seconds after ice contact. When
BC opens, BCH remains energized. WCR, TDR, GM, FM, CR, and Comp de-energize.
When ice level lowers and BC closes, the icemaker starts operating again.
C-100BAF Series Sequence Flow Chart and Component Operation
(auxiliary codes A-2 and later)
Power Switch
"ON"
BC closed
UF/S open
LF/S open
BCH energized
WV energized
1. Fill Cycle
BC closed
LF/S closed
UF/S closed
BCH continues
Comp energized
FM energized
GM energized
WV de-energized
2. Freeze Cycle
BC closed
UF/S open
LF/S open
FT starts (90 sec.)
BCH continues
Comp continues
FM continues
GM continues
WV energized
Rell
FT (in TDR)
Maximum 90 seconds
BC closed
LF/S closed
UF/S closed
FT terminated
BCH continues
Comp continues
FM continues
GM continues
WV de-energized
Low Water Safety
When UF/S closes,
icemaker restarts at
2. Freeze Cycle.
90 seconds
FT
exceeded
BC closed
UF/S open
FT exceeded
BCH continues
WV continues
Comp de-energized
FM de-energized
GM de-energized
3. Shutdown
Bin Full
BC
open
BC open
BCH continues
Comp de-energized
FM de-energized
GM de-energized
WV de-energized
BC closed
Legend: BC–bin control thermostat; BCH–bin control heater; Comp–compressor;
CR–compressor relay; FM–fan motor; FT–90-second ll timer (low water safety; internal to TDR); GM–gear motor; LF/S–lower oat switch; TDR–time delay relay;
UF/S–upper oat switch; WCR–water control relay; WV–inlet water valve
18
Page 19
III. Technical Information
A. Water Circuit and Refrigeration Circuit
1. Auxiliary Codes A-1 and Earlier
Float-Operated
Inlet Water Valve
Water Inlet
Water
Reservoir
Overow Hose
Water Level
Evaporator
Assembly
Water Supply
Drier
Gear
Motor
Capillary Tube
Condenser
Condenser
Fan Motor
Discharge
Suction
Temperature
Safety
Suction
Compressor
Fig. 3a
19
Page 20
2. Auxiliary Codes A-2 and Later
Water Inlet
Inlet Water Valve
Float Switch
Water Level
Water Reservoir
Water Supply
Overow Hoses
Evaporator
Assembly
Gear
Motor
Condenser
Condenser
Fan Motor
Discharge
Drier
Compressor
Capillary Tube
Suction
Fig. 3b
20
Page 21
B. Wiring Diagram
1. Icemaker
a) Auxiliary Codes A-1 and Earlier
(3W)
WIRE COLOR CODE
(low water/
freeze-up
safety)
(external
protector)
(external
protector
2.4~3.0A)
(internal
protector)
b) Auxiliary Codes A-2 and Later
(3W)
WIRE COLOR CODE
(external
protector)
(external
protector
2.4~3.0A)
(internal
protector)
(90-second ll timer
(low water safety))
21
C-100BAF Series
Page 22
2. Icemaker with Optional Drain Pump HS-0248
Optional Drain Pump HS-0248 Safety Shutdown: If the water level in the drain pump
reservoir rises high enough to close the drain pump upper oat switch, the drain pump
safety interrupts power to the icemaker. When the water level lowers enough to open the
drain pump upper oat switch, power is restored to the icemaker.
The pump motor remains energized as long as the drain pump lower oat switch is
closed.
a) Auxiliary Codes A-1 and Earlier
(low water/
freeze-up
safety)
WIRE COLOR CODE
b) Auxiliary Codes A-2 and Later
(3W)
(3W)
(external
protector)
(external
protector
2.4~3.0A)
(external
protector
2.4~3.0A)
(internal
protector)
(90-second ll timer
(low water safety))
WIRE COLOR CODE
(external
protector)
22
(internal
protector)
C-100BAF Series
Page 23
C. Performance Data
1. C-100BAF Series
APPROXIMATE ICE
PRODUCTION PER 24 HR.
lbs./day kg./day
APPROXIMATE ELECTRIC
CONSUMPTION
watts
APPROXIMATE WATER
CONSUMPTION PER 24 HR.
gal./day m3/day
Evaporator Outlet
ºF ºC
HEAD PRESSURE
PSIG kg/cm2G
SUCTION PRESSURE
PSIG kg/cm2G
AMBIENT TEMP.
(ºF/ºC)50/1070/2190/32
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
92
813771326630
6630
55255424
297
310
313
316
11
100.0490.0380.03
80.03
70.0360.02
23-5
23-528-228-2
28-2
341341
115
1268.914910.515611.0
1309.1
1299.116711.7
12
130.9151.1161.1
130.9
130.9171.2
WATER TEMP. (ºF/ºC)
42
89408438
62
0.04
110.04100.04
8
23-523-5
28-2
8.1
1309.11419.9
165
0.8
130.9151.1
17
28
308
310
310
316
0.03
11.6
1.2
5726
49
22
309
312
316
316
70.08
6
0.02
341
341
17412.2
183
12.9
181.3
19
1.3
TOTAL HEAT OF REJECTION FROM CONDENSER
1850 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]
Note:
1. The data not in bold should be used for reference only.
2. We reserve the right to make changes in specications and design without prior
notice.
23
Page 24
IV. Service Diagnosis
WARNING
• This unit should be diagnosed and repaired only by qualied service personnel to
reduce the risk of death, electric shock, serious injury, or re.
• Risk of electric shock. Use extreme caution and exercise safe electrical practices.
• Moving parts (e.g., fan blade) can crush and cut. Keep hands clear.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after the unit is serviced. Make sure that none have fallen into
the storage bin.
• Make sure all food zones in the icemaker and storage bin are clean after the
unit is serviced. For cleaning procedures, see "VI.B. Cleaning and Sanitizing
Instructions."
A. Ice Production Check
To check production, prepare a bucket or pan to catch the ice and a set of scales
to weigh the ice. After the icemaker has operated for 10 to 20 minutes, catch the ice
production for 10 minutes. Weigh the ice to establish the batch weight. Multiply the
batch weight by 144 for the total production in 24 hours. When conrming production
or diagnosing low production, see "III.C. Performance Data" for typical production
information.
B. Diagnostic Procedure
1. Auxiliary Codes A-1 and Earlier
This diagnostic procedure is a sequence check that allows you to diagnose the electrical
system and components. Before proceeding, check for correct installation, adequate
water pressure (7 to 113PSIG), and proper voltage per unit nameplate. When checking
voltage (115VAC), always choose a neutral (W wire) to establish a good neutral
connection.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Remove all ice from the storage bin.
3) Remove the rear panels.
4) Remove the front panel and louver. Remove the screws securing the control box, then
gently pull out the control box. Remove the control box cover.
5) Plug the unit back in. Place the power switch in the "ON" position.
24
Page 25
6) Freeze Cycle – BCH, GM, FM, CR, and Comp energize. NOTICE! Some units contain
a sticker that states: "The bin control heater has been disconnected. DO NOT
reconnect the bin control heater." In this case, leave BCH disconnected or
replace BC assembly with 3A2561A03. Ice production starts 4 to 6minutes after
Comp energizes depending on ambient and water conditions. Rell: The oat-operated
WV allows water into the reservoir as needed to continue the icemaking process. If
the water supply is cut off or GM stops during the freeze cycle, the cold evaporator
temperature causes STS to open and de-energize all components except BCH and
optional drain pump HS-0248.
Diagnosis:Check that GM, FM, and Comp energize. If not, check the power switch,
STS, BC assembly, GM external protector, GM windings (check when GM is cool), GM
capacitor, voltage to FM, FMwindings, fan blade binding, voltage on CR, PTC relay,
voltage on Comp external protector, Comp terminals, and Comp windings. If optional
drain pump HS-0248 is installed, see "IV.E. Optional Drain Pump HS-0248." If GM
starts, but the auger does not turn, check the spline coupling between the auger and
GM.
7) Shutdown (bin full) – Ice lls storage bin to level of BC. BC opens within 10 seconds
after ice contact. BCH remains energized. GM, FM, CR, and Comp de-energize.
Diagnosis: When the icemaker is running, hold ice in contact with BC bulb. If the
components fail to de-energize within 10seconds, check BC. See "IV.C. Bin Control
Check."
Legend: BC–bin control thermostat; Comp–compressor; CR–compressor relay; FM–fan
motor; GM–gear motor; STS–suction temperature safety (low water/freeze-up
safety)
25
Page 26
2. Auxiliary Codes A-2 and Later
This diagnostic procedure is a sequence check that allows you to diagnose the electrical
system and components. Before proceeding, check for correct installation, adequate
water pressure (7 to 113PSIG), and proper voltage per unit nameplate. When checking
voltage (115VAC), always choose a neutral (W wire) to establish a good neutral
connection.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Remove all ice from the storage bin.
3) Remove the rear panels.
4) Remove the clamp securing the drain plug, then lower the drain hose into a container.
Remove the drain plug to drain the water from the evaporator assembly and reservoir.
See Fig. 4.
5) After all of the water has drained, replace the drain hose, drain plug, and drain clamp in
their correct positions.
6) Remove the front panel and louver. Remove the screws securing the control box, then
gently pull out the control box. Remove the control box cover.
7) Plug the unit back in. Place the power switch in the "ON" position.
8) Fill Cycle – LF/S and UF/S open, BCH and WV energize. LF/S closes. Nothing
happens at this time. Reservoir continues to ll until UF/S closes.
Diagnosis: Check that WV lls the reservoir. If not, check water supply line shut-off
valve, water lters, WV screen, power switch, and BC assembly. See "IV.C. Bin Control
Check." Check 115VAC to WV. Check WCR terminal #2 (GY wire) to a neutral (Wwire)
for 115VAC. If 115VAC is not present, WCR is either energized or bad. If WCR is
energized, check F/S. See "IV.D.1. Float Switch Check." If 115VAC is present, check
for continuity through WV solenoid. If open, replace WV. Check that UF/S closes when
reservoir is full. If not, check F/S. See "IV.D.1. Float Switch Check."
9) Freeze Cycle – UF/S closes. BCH remains energized. WCR, TDR, GM, FM, CR, and
Comp energize. WV de-energizes. Ice production starts 4 to 6minutes after Comp
energizes depending on ambient and water conditions.
Diagnosis:Check that WCR, TDR, GM, FM, CR, and Comp energize and WV
de-energizes. If not, check WCR, TDR, GM external protector, GM windings (check
when GM is cool), GM capacitor, voltage to FM, FMwindings, fan blade binding,
voltage on CR, PTC relay, voltage on Comp external protector, Comp terminals, Comp
windings, and WV. If optional drain pump HS-0248 is installed, see "IV.E. Optional Drain
Pump HS-0248." If GM starts, but the auger does not turn, check the spline coupling
between the auger and GM.
10) Rell/Low Water Safety – As ice is produced, the water level in the reservoir drops
and UF/S opens. When UF/S opens, a latching circuit through LF/S and WCR keeps
WCR, TDR, GM, FM, CR, and Comp energized. When LF/S opens, WCR de-energizes,
cutting power to TDR terminal #5 (O wire) and starting FT. WV energizes. Water lls the
reservoir, UF/S closes. WCR energizes, restoring power to TDR terminal #5 (O wire)
and resetting FT. WV de-energizes. If UF/S remains open longer than 90 seconds,
FT terminates, cutting power to TDR terminal#9 (R wire). GM, FM, CR, and Comp
de-energize. WV remains energized until UF/S closes.
26
Page 27
Diagnosis – Check that UF/S and LF/S open, WCR de-energizes, and WV energizes.
If UF/S and/or LF/S do not open, see "IV.D. Float Switch Check and Cleaning." If WV
does not energize, check WCR terminal #2 (GY wire) to a neutral (Wwire) for 115VAC.
If 115VAC is not present, replace WCR. If 115VAC is present, check for continuity
through WV solenoid. If open, replace WV. After LF/S opens, check that TDR terminal
#9 (R wire) has power and GM, FM, CR, and Comp remain energized until UF/S closes
or FT terminates. If not, check TDR. Check that WCR energizes and WV de-energizes
when reservoir is full. If not, check WCR, UF/S, and WV. See "IV.D. Float Switch Check
and Cleaning."
11) Shutdown (bin full) – Ice lls storage bin to level of BC. BC opens within 10 seconds
after ice contact. BCH remains energized. WCR, TDR, GM, FM, CR, and Comp
de-energize.
Diagnosis: When the icemaker is running, hold ice in contact with BC bulb. If the
components fail to de-energize within 10seconds, check BC. See "IV.C. Bin Control
Check."
Legend: BC–bin control thermostat; BCH–bin control heater; Comp–compressor;
CR–compressor relay; FM–fan motor; F/S–oat switch; FT–90-second ll timer (low water safety; internal to TDR); GM–gear motor; LF/S–lower oat switch;
TDR–time delay relay; UF/S–upper oat switch; WCR–water control relay; WV–
inlet water valve
Drain Plug
Float Switch
Assembly
Reservoir
Cover
Reservoir
Evaporator
Assembly
Drain Clamp
Drain Hose
Upper Rear Panel
Fig. 4
C. Bin Control Check
1) Move the power switch to the "ON" position to start the automatic icemaking process.
2) To conrm BC operation, hold ice in contact with BC bulb. If the icemaker does not shut
down within 10seconds, BC must be adjusted. For BC thermostat location, see Fig.1.
Installations at higher altitude locations are more likely to require adjustment. If BC will
not shut down the unit even after being adjusted, replace BC. NOTICE! Some units
contain a sticker that states: "The bin control heater has been disconnected. DO
NOT reconnect the bin control heater." In this case, leave BCH disconnected or
replace BC assembly with 3A2561A03.
Legend: BC–bin control thermostat
27
Page 28
D. Float Switch Check and Cleaning (auxiliary codes A-2 and later)
1. Float Switch Check
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Remove the upper rear panel. See Fig. 4.
3) Remove the clamp securing the drain plug, then lower the drain hose into a container.
Remove the drain plug to drain the water from the evaporator assembly and reservoir.
4) After all of the water has drained, replace the drain hose, drain plug, and drain clamp in
their correct positions.
5) Remove the front panel and louver. Remove the screws securing the control box, then
gently pull out the control box. Remove the control box cover.
6) At WCR, check continuity between terminal #8 common (BK wire) and terminal #6 UF/S
(R wire). Next, check continuity between terminal #8 common (BK wire) and terminal
#4 LF/S (BU wire). If both are open, continue to step 7. If either are closed, follow the
steps in "IV.D.2. Float Switch Cleaning." After cleaning F/S, check UF/S and LF/S again.
Replace if necessary.
7) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
and let the reservoir ll.
8) Once the reservoir is full and GM starts, move the power switch to the "OFF" position.
9) Unplug the unit from the electrical outlet.
10) At WCR, check continuity between terminal #8 common (BK wire) and terminal #6 UF/S
(R wire). Next, check continuity between terminal #8 common (BK wire) and terminal
#4 LF/S (BU wire). If both are closed, continue to step 11. If either are open, follow the
steps in "IV.D.2. Float Switch Cleaning." After cleaning F/S, check UF/S and LF/S again.
Replace if necessary.
11) Make sure F/S wires are properly connected to WCR, then replace the control box cover
and control box in their correct positions.
12) Replace the removed parts and panels in the reverse order of which they were removed.
13) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
Depending on local water conditions, scale may build up on F/S. Scale on F/S can
cause inconsistent operation of UF/S and LF/S. In this case, F/S should be cleaned and
checked.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Remove the upper rear panel. See Fig. 4.
3) Remove F/S assembly from the reservoir cover.
4) Wipe down F/S assembly with a mixture of 1 part Hoshizaki "Scale Away" and 25 parts
warm water. Rinse the assembly thoroughly with clean water.
5) While not necessary, the oats can be removed from the shaft during cleaning. If you
remove them, note that the blue oat is on top (UF/S) and the white oat is on bottom
(LF/S). See Fig. 5. The oats must be installed with the magnets inside them towards
the top of the switch. Installing the oats upside down will affect the timing of F/S
operation.
6) Rinse F/S assembly thoroughly with clean water and replace in its correct position.
7) Replace the upper rear panel in its correct position.
8) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
As ice melts, water drains from the storage bin into DP. When DP's LF/S closes, DP
energizes and pumps out the water. If water cannot be pumped out of DP due to a
blocked discharge hose, bad check valve, or bad DP motor, the water level rises and
UF/S closes. When UF/S closes, DP safety activates and unit shuts down. DP safety
interrupts power to icemaker components until UF/S opens. Power is supplied to DP
motor as long as LF/S is closed.
For schematics, see "III.B.2. Icemaker with Optional Drain Pump HS-0248."
NOTICE
• If you remove DP from the icemaker and/or remove the reservoir cover, be sure to
follow all instructions below. Failure to do so may result in costly water damage.
• DP has an external or internal check valve. If DP contains an internal check valve,
do not install an external check valve and vice versa. See Fig. 6.
If the optional DP (HS-0248) is installed, test its operation at least twice a year as
outlined below. Note that DP has power even when the power switch is in the "OFF"
position.
NOTICE
If DP is not primed or is otherwise not operating properly, it will adversely affect
performance, component life, and warranty coverage and may result in costly water
damage.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet. WARNING! To reduce the risk of electric shock, do not touch the power
switch or plug with damp hands.
2) Remove all ice from the storage bin.
3) Plug the unit back in.
4) Slowly pour 16 to 24 oz. (500 to 750 ml) of water over the storage bin drain hole in the
storage bin.
30
Page 31
5) If water pumps out properly and DP then de-energizes, proceed to step 6. If water does
not pump out properly and/or DP does not de-energize, follow the steps below to prime
D P.
Priming Instructions
a. Disconnect the icemaker's power cord from the electrical outlet, then reconnect
to the electrical outlet. WARNING! To reduce the risk of electric shock, do not touch the power cord with damp hands.
b. Slowly pour another 16 to 24 oz. (500 to 750 ml) of water over the storage bin drain
hole in the storage bin. If not already energized, DP should energize.
c. Conrm that water is discharged through the discharge hose. DP should then
de-energize. If not, repeat steps a through c until water is discharged through the
discharge hose and DP de-energizes. DP is primed when DP de-energizes.
d. If water now pumps out properly and DP de-energizes, proceed to step 6. If water
still does not pump out properly and/or DP does not de-energize, follow the steps in
"IV.E.3. Float Switch Cleaning" before proceeding.
6) Move the power switch to the "ON" position.
7) Pour another 16 to 24 oz. (500 to 750 ml) of water into the icemaker's ice storage bin,
then completely restrict the discharge hose while DP is operating. See Fig.7. Pour more
water into the icemaker's ice storage bin until the icemaker turns off. DP will continue to
operate. Check for leaks.
8) Remove the discharge hose restriction and allow the water to be pumped out normally.
Power to the icemaker will be restored when the water in DP returns to a normal level.
9) If the icemaker fails to turn off with the discharge hose restricted or the pump fails to
pump out the water, follow the steps in "IV.E.3. Float Switch Cleaning".
Legend: DP–drain pump
Upper Rear Panel
Vent Hose
Discharge Hose
Fig. 7
31
Lower Rear Panel
Page 32
3. Float Switch Cleaning
Depending on local water conditions, scale may build up on F/S. Scale on F/S can cause
oat to stick. In this case, F/S should be cleaned and checked.
1) Move the power switch to the "OFF" position, then unplug the icemaker from the
electrical outlet. WARNING! Moving the power switch to the "OFF" position does
not de-energize the power supply to DP. The icemaker must be unplugged to
de-energize the power supply to DP.
2) Disconnect the vent hose from the upper rear panel. See Fig. 7.
3) Remove the rear panels.
4) Remove the reservoir cover from DP assembly. See Fig. 8.
5) Leave F/S assembly connected to the reservoir cover and leave the oat on the shaft.
Wipe down F/S assembly and reservoir with a mixture of 1 part recommended cleaner
Hoshizaki "Scale Away" and 25 parts warm water.
6) Rinse F/S assembly and reservoir.
7) Clean the mating surfaces of the reservoir cover and reservoir. Place silicone caulk
around the perimeter of the reservoir cover where it contacts the reservoir, then replace
the reservoir cover in its original position. Smooth the silicone caulk. NOTICE!The
reservoir cover must be properly sealed with silicone caulk or costly water
damage may occur.
8) Make sure all hose connections are secure, then reinstall the lower rear panel and
upper rear panel in their correct positions. WARNING! Make sure that there are no
wires pinched between the covers and icemaker.
9) Resecure the vent hose to the icemaker. NOTICE! The vent hose must be attached
and secured to the icemaker or costly water damage may occur. Make certain
there are no kinks in the vent hose. DP will not operate correctly with a partially
blocked vent hose.
10) Follow the steps in "IV.E.2. Drain Pump Check" to check the drain pump.
Legend: DP–drain pump; F/S–oat switch
Reservoir Cover
Seal perimeter with silicone caulk
Float Switch Assembly
Fig. 8
32
Page 33
F. Diagnostic Charts
The diagnostic charts below list possible reasons for problems with ice production and
shutdown. Before consulting the diagnostic charts, check for correct installation, proper
voltage per unit nameplate, and adequate water supply.
1. Auxiliary Codes A-1 and Earlier
No Ice Production - Possible Cause
Startup
1. Power Supplya) Unplugged, off, blown fuse, or tripped breaker.
b) Not within specications.
2. Power Switcha) "OFF" position.
b) Bad contacts.
3. Bin Control Thermostat Assembly
(with integrated heater)
NOTICE! Some units contain
a sticker that states: "The
bin control heater has been
disconnected. DO NOT
reconnect the bin control
heater." In this case, leave
the bin control heater
disconnected or replace
the bin control thermostat
assembly with 3A2561A03.
4. Optional Drain Pump HS-0248
Safety
1. Water Supplya) Water supply off or improper water pressure.
2. Gear Motora) Gear motor external protector (2.4~3.0A) tripped.
3. Suction Temperature Safety
(Low Water/Freeze-Up Safety)
4. Fan Motora) Motor winding open.
5. Compressor Relaya) Open coil.
6. Compressora) Compressor external protector open or defective.
a) Open with bin lled with ice.
b) Ambient temperature too cool.
c) Out of position.
d) Out of adjustment. See "IV.C. Bin Control Check."
e) Bad contacts.
f) Bad thermostat heater (if applicable).
a) Open.
Freeze Cycle
b) External water lters clogged.
b) Gear motor internal protector open or windings open.
c) Bad gear motor capacitor.
d) Locked bearings.
e) Spline coupling or gear broken and auger not turning.
a) Open due to water supply cut-off.
b) Open due to evaporator freeze-up (gear motor not operating).
c) Bad contacts.
b) Bearing worn out or locked rotor.
c) Fan blade does not move freely.
b) Open contacts.
b) Motor winding open.
c) PTC relay contacts bad or coil winding open.
d) Inefficient.
33
Page 34
7. Evaporatora) Dirty.
b) Damaged or defective.
8. Condensera) Dirty.
9. Refrigerant a) Low charge or overcharged.
b) Refrigerant lines or components restricted.
10. Water Systema) Water leaks.
Shutdown
1. Bin Control Thermostat Assembly
(with integrated heater)
NOTICE! Some units contain
a sticker that states: "The
bin control heater has been
disconnected. DO NOT
reconnect the bin control
heater." In this case, leave
the bin control heater
disconnected or replace
the bin control thermostat
assembly with 3A2561A03.
a) Out of position.
b) Out of adjustment. See "IV.C. Bin Control Check."
34
Page 35
2. Auxiliary Codes A-2 and Later
No Ice Production - Possible Cause
Startup
1. Power Supplya) Unplugged, off, blown fuse, or tripped breaker.
b) Not within specications.
2. Power Switcha) "OFF" position.
b) Bad contacts.
3. Bin Control Thermostat Assembly
(with integrated heater)
4. Optional Drain Pump HS-0248
Safety
1. Water Supplya) Water supply off or improper water pressure.
2. Water Control Relaya) Energized and not allowing water valve to energize.
3. Inlet Water Valvea) Screen or orice clogged.
4. Float Switch
See "IV.D. Float Switch Check
and Cleaning"
1. Water Control Relaya) Open.
2. Time Delay Relaya) Defective.
3. Gear Motora) Gear motor external protector (2.4~3.0A) tripped.
4. Fan Motora) Motor winding open.
5. Compressor Relaya) Open coil.
6. Compressora) Compressor external protector open or defective.
7. Evaporatora) Dirty.
8. Condensera) Dirty.
a) Open with bin lled with ice.
b) Ambient temperature too cool.
c) Out of position.
d) Out of adjustment. See "IV.C. Bin Control Check."
e) Bad contacts.
f) Bad thermostat heater.
a) Drain pump's upper oat switch closed.
Fill Cycle and Rell Cycle
b) External water lters clogged.
b) Defective.
b) Coil winding open.
a) Float does not move freely.
b) Defective.
Freeze Cycle
b) Gear motor internal protector open or windings open.
c) Bad gear motor capacitor.
d) Locked bearings.
e) Spline coupling or gear broken and auger not turning.
b) Bearing worn out or locked rotor.
c) Fan blade does not move freely.
b) Open contacts.
b) Motor winding open.
c) PTC relay contacts bad or coil winding open.
d) Inefficient.
b) Damaged or defective.
35
Page 36
9. Refrigerant a) Low charge or overcharged.
b) Refrigerant lines or components restricted.
10. Water Systema) Water leaks.
Shutdown
1. Bin Control Thermostat Assembly
(with integrated heater)
a) Out of position.
b) Out of adjustment. See "IV.C. Bin Control Check."
36
Page 37
V. Removal and Replacement of Components
WARNING
• This unit should be diagnosed and repaired only by qualied service personnel to
reduce the risk of death, electric shock, serious injury, or re.
• Move the power switch to the "OFF" position, then unplug the unit from the
electrical outlet before servicing.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after the unit is serviced. Make sure that none have fallen into
the storage bin.
• Make sure all food zones in the icemaker and storage bin are clean after the
unit is serviced. For cleaning procedures, see "VI.B. Cleaning and Sanitizing
Instructions."
A. Service for Refrigerant Lines
WARNING
• Repairs requiring the refrigeration circuit to be opened must be performed by
properly trained and EPA-certied service personnel.
• Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of
refrigerant to the system (if using an electronic leak detector), and then raise the
pressure using nitrogen gas (140 PSIG). DO NOT use R-134a as a mixture with
pressurized air for leak testing.
NOTICE
• Always recover the refrigerant and store it in an approved container. Do not
discharge the refrigerant into the atmosphere.
• Do not leave the system open for longer than 15 minutes when replacing or
servicing parts. The Polyol Ester (POE) oils used in R-134a units can absorb
moisture quickly. Therefore it is important to prevent moisture from entering the
system when replacing or servicing parts.
• Always install a new drier every time the sealed refrigeration system is opened. Do
not replace the drier until after all other repair or replacement has been made.
• When brazing, protect the drier by using a wet cloth to prevent the drier from
overheating. Do not allow the drier to exceed 250°F (121°C).
1. Refrigerant Recovery
No refrigerant access valves are provided on this unit. Using proper refrigerant
practices, utilize a temporary tap-line valve on the high side to recover the refrigerant.
Store the refrigerant in an approved container. Do not discharge the refrigerant into the
atmosphere.
After recovery is complete, replace the tap-line valve with a proper, permanent access
valve.
37
Page 38
2. Brazing
WARNING
• R-134a itself is not ammable at atmospheric pressure and temperatures up to
212°F (100°C).
• R-134a itself is not explosive or poisonous. However, when exposed to high
temperatures (open ames), R-134a can be decomposed to form hydrouoric
acid and carbonyl uoride both of which are hazardous.
• Do not use silver alloy or copper alloy containing arsenic.
• Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of
refrigerant to the system (if using an electronic leak detector), and then raise the
pressure using nitrogen gas (140 PSIG). DO NOT use R-134a as a mixture with
pressurized air for leak testing.
1) Braze all ttings while purging with nitrogen gas owing at a pressure of 3 to 4 PSIG.
NOTICE
• Always install a new drier every time the sealed refrigeration system is opened. Do
not replace the drier until after all other repair or replacement has been made.
• When brazing, protect the drier by using a wet cloth to prevent the drier from
overheating. Do not allow the drier to exceed 250°F (121°C).
2) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of
refrigerant to the system (if using an electronic leak detector), and then raise the
pressure using nitrogen gas (140 PSIG). DO NOT use R-134a as a mixture with
pressurized air for leak testing.
3. Evacuation and Recharge (R-134a)
1) Attach a vacuum pump to the system. Be sure the high-side charging hose is connected
to the eld-installed high-side access valve.
NOTICE
The vacuum level and vacuum pump may be the same as those for current
refrigerants. However, the rubber hose and gauge manifold to be used for
evacuation and refrigerant charge must be exclusively for POE oils.
2) Turn on the vacuum pump, then open the high-side valve on the gauge manifold. Never
allow the oil in the vacuum pump to ow backwards.
3) Allow the vacuum pump to pull down to a 29.9" Hg vacuum. Evacuating period depends
on pump capacity.
4) Close the high-side valve on the gauge manifold.
38
Page 39
5) Disconnect the gauge manifold hose from the vacuum pump and attach it to a
refrigerant service cylinder. Remember to loosen the connection and purge the air from
the hose. See the nameplate for the required refrigerant charge. Hoshizaki recommends
only virgin refrigerant or reclaimed refrigerant which meets the requirements of ARI
Standard 700 (latest edition) be used.
6) A liquid charge is recommended when charging an R-134a system. Place the service
cylinder on the scales; if the service cylinder is not equipped with a dip tube, invert the
service cylinder, then place it on the scales. Open the high-side valve on the gauge
manifold.
7) Allow the system to charge with liquid until the proper charge weight is met.
8) Close the high-side valve on the gauge manifold, then close the refrigerant access valve
(if applicable). Disconnect the gauge manifold hose.
9) Cap the access valve to prevent a possible leak.
B. Important Notes for Component Replacement
NOTICE
When replacing a component listed below, see the notes to help ensure proper
operation.
ComponentNotes
Compressor
Upper and Lower
Bearings
Evaporator
Gear MotorInstall a new gear motor capacitor.
Install a new drier and PTC relay.
Evaporator Assembly Components. See Fig. 9.
Inspect the upper bearing for wear. See "V.C.1. Upper Bearing Wear Check." Replace
if necessary. When replacing the upper bearing it is advised to also change the lower
bearing at the same time.
• Install a new drier.
• Inspect the mechanical seal and O-ring prior to installing the new evaporator. If worn,
cracked, or scratched, the mechanical seal should also be replaced.
39
Page 40
C. Removal and Replacement of Evaporator Assembly Components
Thumbscrew
Spout
Cutter
(motionless)
Packing
Evaporator
Flange
Socket Head
Cap Screw
Extruding Head and
Upper Bearing
Auger
Drain Hose
Connection
Socket Head
Cap Screw
with Washer
Hex Head Bolt with
Washer
Evaporator
Condensate
Drain Pan
Evaporator
Reservoir Hose
Connection
Spring Retainer
Mechanical Seal
O-Ring
Housing and
Lower Bearing
Spline Coupling
Fig. 9
Gear Motor
Socket Head
Cap Screw
with Washer
40
Page 41
1. Upper Bearing Wear Check
To ensure that the bearing inside the extruding head does not exceed the wear tolerance
of .02", follow the instructions below.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Remove all ice from the storage bin.
3) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 10.
4) Remove the top panel.
5) Remove the spout.
6) Remove the cutter.
Top Panel
Spout
Cutter
Hinge (A)
Fig. 10
Hinge (B)
Hinge Stop Pin
7) Grasp the top of the auger and move the
.02" Round Stock or Pin Gauge
auger towards you and then try to insert a
.02" round stock or pin gauge in between
Auger
the back side of the auger shaft and the
bearing surface. See Fig. 11. Check several
locations around the auger shaft. If the
gauge goes between the shaft and the
bearing at any point or if the bearing is
Extruding Head
scratched or cracked, both the top bearing
in the extruding head and the lower
bearing in the housing should be replaced.
Instructions for removing the extruding
head and housing are located later in this
Fig. 11
procedure.
Note: Replacing the bearing requires a bearing press adaptor. If one is not available,
replace the entire extruding head and housing.
8) Replace the removed parts and panels in the reverse order of which they were removed.
9) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
to start the automatic icemaking process.
41
Page 42
2. Removal and Replacement of Extruding Head
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Close the water supply line shut-off valve.
3) Remove all ice from the storage bin.
4) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 10.
5) Remove the top panel.
6) Remove the spout.
7) Remove the upper rear panel. See
Fig. 12.
8) Remove the clamp securing the drain
Evaporator
Flange
Spout
Packing
Cutter
Extruding
Head
plug, then lower the drain hose into a
container. Remove the drain plug to
drain the water from the reservoir and
evaporator assembly.
9) After all of the water has drained,
Evaporator
Condensate Drain Pan
Drain Plug
Drain Clamp
Drain Hose
replace the drain hose, drain plug,
and drain clamp in their original
Fig. 12
positions.
10) Remove the cutter and packing.
11) Remove the socket head cap screws
securing the extruding head and
Reservoir Hose
Upper Rear Panel
evaporator ange, then lift off.
12) Place the evaporator ange and new extruding head in place, then tighten down the
socket head cap screws.
13) Open the water supply line shut-off valve and check for water leaks.
14) Plug the unit into the electrical outlet, then move the power switch to the "ON" position.
15) Allow the icemaker to operate until the gear motor starts. Check for water leaks.
16) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
17) Replace the removed parts and panels in the reverse order of which they were removed.
18) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
to start the automatic icemaking process.
42
Page 43
3. Removal and Replacement of Auger
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Close the water supply line shut-off valve.
3) Remove all ice from the storage bin.
4) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 10.
5) Remove the top panel.
6) Remove the spout.
7) Remove the upper rear panel. See Fig. 12.
8) Remove the clamp securing the drain plug, then lower the drain hose into a container.
Remove the drain plug to drain the water from the reservoir and evaporator assembly.
9) After all of the water has drained, replace the drain hose, drain plug, and drain clamp in
their original positions.
10) Remove the packing.
11) Remove the socket head cap screws securing the extruding head and evaporator ange.
Remove the evaporator ange, then grasp the cutter and carefully lift out the cutter and
extruding head. Grasp the top of the auger and carefully lift out the auger.
12) When pulling out the auger, the upper part of the mechanical seal should come out with
it. The mechanical seal consists of two parts. One moves along with the auger, and the
other is xed on the lower housing. Inspect the part of the mechanical seal that came
out with the auger. If the contact surface on the bottom of the seal is worn, cracked
or scratched, the mechanical seal may cause water leaks and both the upper and
lower parts of the mechanical seal should be replaced. Instructions for removing the
mechanical seal are located later in this procedure.
13) Remove the mechanical seal from the old auger and place it on the new auger.
14) Install the new auger. Replace the cutter, extruding head, and evaporator ange in their
correct positions.
15) Open the water supply line shut-off valve and check for water leaks.
16) Plug the unit into the electrical outlet, then move the power switch to the "ON" position.
17) Allow the icemaker to operate until the gear motor starts. Check for water leaks.
18) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
19) Replace the removed parts and panels in the reverse order of which they were removed.
20) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
to start the automatic icemaking process.
43
Page 44
4. Removal and Replacement of Evaporator
NOTICE
• Always install a new drier every time the sealed refrigeration system is opened. Do
not replace the drier until after all other repair or replacement has been made.
• When brazing, protect the drier by using a wet cloth to prevent the drier from
overheating. Do not allow the drier to exceed 250°F (121°C).
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Close the water supply line shut-off valve.
3) Remove all ice from the storage bin.
4) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 10.
5) Remove the top panel.
6) Remove the spout.
7) Remove the rear panels.
8) Remove the clamp securing the drain plug, then lower the drain hose into a container.
Remove the drain plug to drain the water from the reservoir and evaporator assembly.
See Fig. 12.
9) Disconnect the drain hose and reservoir hose from the evaporator.
10) Remove the packing.
11) Remove the socket head cap screws securing the extruding head and evaporator ange.
Remove the evaporator ange, then grasp the cutter and carefully lift out the cutter and
extruding head. Grasp the top of the auger and carefully lift out the auger. When pulling
out the auger, the upper part of the mechanical seal should come out with it.
12) Remove the evaporator condensate drain pan.
13) Install a temporary tap-line valve on the high side, then recover the refrigerant and store
it in an approved container.
14) Disconnect the inlet and outlet tubing.
15) Remove the socket head cap screws securing the evaporator to the lower housing.
16) Lift off the evaporator.
17) Inspect the mechanical seal and O-ring prior to installing the new evaporator. The
mechanical seal consists of two parts. One moves along with the auger, and the other
is xed on the lower housing. If the contact surfaces of these two parts are worn,
cracked or scratched, the mechanical seal may cause water leaks and should be
replaced. Instructions for removing the mechanical seal and lower housing are located
later in this procedure.
18) Make sure the lower mechanical seal and the O-ring are in place, then place the
evaporator assembly in position. Secure the evaporator to the lower housing using the
socket head cap screws.
44
Page 45
19) Replace the tap-line valve with a proper, permanent access valve.
20) Remove the drier, then place the new drier in position.
21) Braze all ttings while purging with nitrogen gas owing at a pressure of 3 to 4 PSIG.
22) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of
refrigerant to the system (if using an electronic leak detector), and then raise the
pressure using nitrogen gas (140 PSIG). DO NOT use R-134a as a mixture with
pressurized air for leak testing.
23) Evacuate the system, then charge it with refrigerant. See the nameplate for the required
refrigerant charge.
24) Reattach and secure the reservoir hose, drain hose, and drain plug.
25) Install the auger assembly with the upper part of the mechanical seal attached. Replace
the cutter, extruding head, and evaporator ange in their correct positions.
26) Open the water supply line shut-off valve and check for water leaks.
27) Plug the unit into the electrical outlet, then move the power switch to the "ON" position.
28) Allow the icemaker to operate until the gear motor starts. Check for water leaks.
29) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
30) Replace the removed parts and panels in the reverse order of which they were removed.
31) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
to start the automatic icemaking process.
5. Removal and Replacement of Mechanical Seal and Lower Housing
5a. Mechanical Seal
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Close the water supply line shut-off valve.
3) Remove all ice from the storage bin.
4) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 10.
5) Remove the top panel.
6) Remove the spout.
7) Remove the upper rear panel. See Fig. 12.
8) Remove the clamp securing the drain plug, then lower the drain hose into a container.
Remove the drain plug to drain the water from the reservoir and evaporator assembly.
9) After all of the water has drained, replace the drain hose, drain plug, and drain clamp in
their original positions.
10) Remove the packing.
45
Page 46
11) Remove the socket head cap screws securing the extruding head and evaporator ange.
Remove the evaporator ange, then grasp the cutter and carefully lift out the cutter and
extruding head. Grasp the top of the auger and carefully lift out the auger. When pulling
out the auger, the upper part of the mechanical seal should come out with it.
12) Remove the socket head cap screws securing the evaporator to the lower housing.
13) Raise the evaporator up to access the lower housing.
14) The mechanical seal consists of two parts. One moves along with the auger, and the
other is xed on the lower housing. If the contact surfaces of these two parts are worn,
cracked or scratched, the mechanical seal may cause water leaks and should be
replaced.
15) Remove the mechanical seal from the housing. If only replacing the mechanical seal,
proceed to step 18. NOTICE! To help prevent water leaks, be careful not to damage
the surfaces of the O-ring or mechanical seal.
5b. Lower Housing
16) Remove the O-ring and the bolts securing the lower housing to the gear motor and
remove the housing from the gear motor. If inspection of the upper bearing inside the
extruding head (see "V.C.1. Upper Bearing Wear Check") indicates that it is out of
tolerance, replace both it and the bearing inside the lower housing.
Note: Replacing the bearing requires a bearing press adaptor. If one is not available,
replace the entire extruding head and housing.
17) Mount the lower housing onto the gear motor, then install the O-ring onto the lower
housing.
18) Install the lower part of the mechanical seal onto the lower housing.
19) Lower the evaporator down and secure it to the lower housing.
20) Install the auger assembly with the upper part of the mechanical seal attached. Replace
the cutter, extruding head, and evaporator ange in their correct positions.
21) Open the water supply line shut-off valve and check for water leaks.
22) Plug the unit into the electrical outlet, then move the power switch to the "ON" position.
23) Allow the icemaker to operate until the gear motor starts. Check for water leaks.
24) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
25) Replace the removed parts and panels in the reverse order of which they were removed.
26) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
to start the automatic icemaking process.
46
Page 47
6. Removal and Replacement of Gear Motor
IMPORTANT! Hoshizaki recommends that the gear motor capacitor be replaced at
the same time as the gear motor.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Close the water supply line shut-off valve.
3) Remove all ice from the storage bin.
4) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 10.
5) Remove the top panel.
6) Remove the spout.
7) Remove the upper rear panel. See Fig. 12.
8) Remove the clamp securing the drain plug, then lower the drain hose into a container.
Remove the drain plug to drain the water from the reservoir and evaporator assembly.
9) After all of the water has drained, replace the drain hose, drain plug, and drain clamp in
their original positions.
10) Remove the bolts securing the lower housing to the gear motor. Lift the evaporator up
slightly.
11) Remove the bolts securing the gear motor.
12) Disconnect the gear motor wires, then remove the gear motor.
13) Attach the spline coupling from the old gear motor to the new gear motor.
14) Install the new gear motor and reconnect the electrical wires.
15) Open the water supply line shut-off valve and check for water leaks.
16) Plug the unit into the electrical outlet, then move the power switch to the "ON" position.
17) Allow the icemaker to operate until the gear motor starts. Check for water leaks.
18) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
19) Replace the removed parts and panels in the reverse order of which they were removed.
20) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
to start the automatic icemaking process.
47
Page 48
VI. Maintenance
This icemaker must be maintained in accordance with the instruction manual and
labels provided with the icemaker. Consult with your local Hoshizaki Certied Service
Representative about maintenance service.
WARNING
• Only qualied service technicians should service this icemaker.
• Failure to install, operate, and maintain the equipment in accordance with this
manual will adversely affect safety, performance, component life, and warranty
coverage.
• Move the power switch to the "OFF" position, then unplug the unit from the
electrical outlet before servicing.
• To reduce the risk of electric shock, do not touch the power switch or plug with
damp hands.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after any maintenance is done to the unit. Make sure that none
have fallen into the storage bin.
• Do not place ngers or any other objects into the ice discharge opening.
• After service, make sure that there are no wires pinched between the panels and
icemaker. Make sure you do not damage or pinch the water supply line, drain line,
or power cord.
48
Page 49
A. Maintenance Schedule
The maintenance schedule below is a guideline. More frequent maintenance may be
required depending on water quality, the icemaker's environment, and local sanitation
regulations.
Maintenance Schedule
Frequency AreaTask
WeeklyScoopClean the scoop using a neutral cleaner. Rinse thoroughly after cleaning.
MonthlyExternal Water
Filters
Icemaker ExteriorWipe down with clean, soft cloth. Use a damp cloth containing a neutral
Every 3
Months
Every 6
Months
Storage Bin DrainMaintain as outlined in "VI.C. Storage Bin Drain."
Icemaker and
Storage Bin
Evaporator
Condensate Drain
Pan and Gear
Motor Drain Pan
Check for proper pressure and change if necessary.
cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust
colored spots) using a non-abrasive cleaner like Zud or Bon Ami.
Clean and sanitize per the cleaning and sanitizing instructions provided in
this manual. See "VI.B. Cleaning and Sanitizing Instructions."
Wipe down with clean cloth andwarm water.
Evaporator
Condensate
Drain Pan
Gear Motor
Drain Pan
Optional Drain
Pump (HS-0248)
YearlyWater Supply InletClose the icemaker water supply line shut-off valve and drain the water
CondenserInspect. Clean if necessary. See "VI.D. Condenser."
Water HosesInspect the water hoses and clean/replace if necessary.
Upper Bearing
Check for wear using .02" round stock or pin gauge. Replace both upper
bearing and lower bearing if wear exceeds factory recommendations. See
"V.C.1. Upper Bearing Wear Check."
Inspect. Replace both upper bearing and lower bearing if wear exceeds
factory recommendations. Replace the mechanical seal if the seal's contact
surfaces are worn, cracked, or scratched.
49
Page 50
B. Cleaning and Sanitizing Instructions
1. Auxiliary Codes A-1 and Earlier
Hoshizaki recommends cleaning and sanitizing this unit at least twice a year. More
frequent cleaning and sanitizing, however, may be required in some water conditions.
WARNING
• To prevent injury to individuals and damage to the icemaker, do not use ammonia
type cleaners.
• Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.
• Always wear liquid-proof gloves and goggles to prevent the cleaning and sanitizing
solutions from coming into contact with skin or eyes.
• Do not use ice made from the cleaning and sanitizing solutions. After cleaning and
sanitizing, be careful not to leave any solution in the icemaker.
a) Cleaning Solution
Dilute 1.6 . oz. (47 ml or 3.2 tbs) of Hoshizaki "Scale Away" with 1 qt. (1 l) of warm water.
This is a minimum amount. Make more solution if necessary. IMPORTANT! For safety
and maximum effectiveness, use the solution immediately after dilution.
b) Cleaning Procedure
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet. WARNING! To reduce the risk of electric shock, do not touch the power
switch or plug with damp hands.
2) Close the water supply line shut-off valve.
3) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 13.
Top Panel
Scoop
Holder
Slope
Hinge (B)
Hinge (A)
Reservoir
Cover
Reservoir
Reservoir
Hose
Evaporator
Assembly
Overow
Hose
Spout
Packing
Extruding
Head
Drain Plug
Drain Clamp
Drain Hose
Hinge Stop Pin
Fig. 13
Upper Rear Panel
Fig. 14
50
Page 51
4) Remove the 2 screws securing the top panel, then lift it off.
5) Remove all ice from the storage bin.
6) Remove the slope from the storage bin by carefully bending it in the center and
releasing it from the 2 slope shafts.
7) Remove the scoop. Remove the 2 thumbscrews securing the scoop holder, then remove
it.
8) Remove the screws securing the upper rear panel, then remove it.
9) Remove the clamp securing the drain plug, then lower the drain hose into a container.
See Fig. 14. Remove the drain plug to drain the water from the reservoir and evaporator
assembly.
10) After all of the water has drained, replace the drain plug in its correct position.
11) Remove the reservoir cover. Pour the cleaning solution into the reservoir until the
solution starts to ow through the overow hose. Replace the reservoir cover in its
correct position.
Note: If there is excess scale on the extruding head, ll the reservoir as described
above, then use a clamp on the reservoir hose between the reservoir and
evaporator assembly to block ow. Remove the thumbscrews securing the spout,
then remove the spout. Pour additional cleaning solution over the extruding head
until the evaporator assembly is completely full.
12) Allow the icemaker to sit for 10 minutes before operation. If you placed a clamp on the
reservoir hose in step 11, remove it before operation and replace the spout in its correct
position.
13) Plug the unit back in. Move the power switch to the "ON" position.
14) Allow the unit to make ice using the solution. When ice stops coming out, move the
power switch to the "OFF" position. Unplug the unit from the electrical outlet.
15) Remove the drain plug to drain any remaining solution.
16) After all of the solution has drained, replace the drain plug in its correct position.
17) Remove the reservoir cover. Using a clean container, pour water into the reservoir until
it starts to ow through the overow hose. Replace the reservoir cover in its correct
position.
18) Remove the drain plug to drain the water.
Note: If you do not sanitize the icemaker, go to step 11 in "Sanitizing Procedure - Final."
19) After all of the water has drained, replace the drain plug in its correct position.
51
Page 52
c) Sanitizing Solution
Dilute 1.25 . oz. (37 ml or 2.5 tbs) of a 5.25% sodium hypochlorite solution (chlorine
bleach) with 2.5 gal. (9.5 l) of warm water. This is a minimum amount. Make more
solution if necessary. Using a chlorine test strip or other method, conrm that you have a
concentration of about 200 ppm. IMPORTANT! For safety and maximum effectiveness,
use the solution immediately after dilution.
d) Sanitizing Procedure - Initial
1) Remove the reservoir cover. Pour the sanitizing solution into the reservoir until the
solution starts to ow through the overow hose. Replace the reservoir cover in its
correct position.
2) Remove the spout and packing.
3) Pour some of the sanitizing solution into a separate, clean container. Use this sanitizing
solution and a clean cloth to wipe down the slope, scoop, scoop holder, spout, and
packing.
4) Rinse the parts thoroughly with clean water.
5) Replace the packing and spout in their correct positions.
6) Make sure at least 10 minutes have elapsed since you poured the sanitizing solution
into the reservoir, then plug the unit back in. Move the power switch to the "ON"
position.
7) Allow the unit to make ice using the solution. When ice stops coming out, move the
power switch to the "OFF" position. Unplug the unit from the electrical outlet.
e) Sanitizing Procedure - Final
1) Remove the drain plug to drain any remaining solution.
2) After all of the solution has drained, replace the drain plug in its correct position.
3) Remove the reservoir cover. Pour the sanitizing solution into the reservoir until the
solution starts to ow through the overow hose.
4) Allow the icemaker to sit for 10 minutes before operation.
5) Plug the unit back in. Move the power switch to the "ON" position.
6) Allow the unit to make ice using the solution. When ice stops coming out, move the
power switch to the "OFF" position. Unplug the unit from the electrical outlet.
7) Remove the drain plug to drain any remaining solution.
8) After all of the solution has drained, replace the drain plug in its correct position.
9) Remove the reservoir cover. Using a clean container, pour water into the reservoir until
it starts to ow through the overow hose. Replace the reservoir cover in its correct
position.
10) Remove the drain plug to drain the water.
11) After all of the water has drained, replace the drain hose, drain plug, drain clamp and
all other removed parts in their original and correct positions. WARNING! CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place.
Make sure that none have fallen into the storage bin.
52
Page 53
12) Open the water supply line shut-off valve. Check for leaks.
13) Plug the unit back in. Move the power switch to the "ON" position and allow the
icemaker to run.
14) After 30 minutes, move the power switch to the "OFF" position. Unplug the unit.
15) Pour warm water into the storage bin to melt all of the ice, then clean the storage bin
liner, door liner, and door gasket with a neutral cleaner. Rinse thoroughly after cleaning.
16) Plug the unit back in. Move the power switch to the "ON" position to start the automatic
icemaking process.
53
Page 54
2. Auxiliary Codes A-2 and Later
This icemaker must be cleaned and sanitized at least twice a year. More frequent
cleaning and sanitizing may be required in some water conditions.
WARNING
• To prevent injury to individuals and damage to the icemaker, do not use ammonia
type cleaners.
• Carefully follow any instructions provided with the bottles of cleaning and
sanitizing solution.
• Always wear liquid-proof gloves and goggles to prevent the cleaning and sanitizing
solutions from coming into contact with skin or eyes.
• Do not use ice made from the cleaning and sanitizing solutions. After cleaning and
sanitizing, be careful not to leave any solution in the icemaker.
a) Cleaning Solution
Dilute 1.6 . oz. (47 ml or 3.2 tbs) of Hoshizaki "Scale Away" with 1 qt. (1 l) of warm water.
This is a minimum amount. Make more solution if necessary. IMPORTANT! For safety
and maximum effectiveness, use the solution immediately after dilution.
b) Cleaning Procedure
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet. WARNING! To reduce the risk of electric shock, do not touch the power
switch or plug with damp hands.
2) Close the water supply line shut-off valve.
3) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 15.
4) Remove the 2 screws securing the top panel, then lift it off.
Top Panel
Scoop
Holder
Slope
Hinge (B)
Hinge (A)
Float Switch
Assembly
Reservoir
Cover
Reservoir
Reservoir
Hose
Evaporator
Assembly
Overow
Hose
Spout
Packing
Extruding
Head
Drain Plug
Drain Clamp
Drain Hose
Hinge Stop Pin
Fig. 15
54
Upper Rear Panel
Fig. 16
Page 55
5) Remove all ice from the storage bin.
6) Remove the slope from the storage bin by carefully bending it in the center and
releasing it from the 2 slope shafts.
7) Remove the scoop. Remove the 2 thumbscrews securing the scoop holder, then remove
it.
8) Remove the screws securing the upper rear panel, then remove it.
9) Remove the clamp securing the drain plug, then lower the drain hose into a container.
See Fig. 16. Remove the drain plug to drain the water from the evaporator assembly and
reservoir.
10) After all of the water has drained, replace the drain plug in its correct position.
11) Remove the spout. Pour the cleaning solution over the extruding head until the
evaporator assembly and the reservoir are full and the solution starts to ow through the
overow hose. Replace the spout in its correct position.
Note: If there is excess scale on the extruding head, ll the evaporator assembly and
reservoir as described above, then use a clamp on the reservoir hose between
the evaporator assembly and reservoir to block ow. Pour additional cleaning
solution over the extruding head until the evaporator assembly is completely full.
Replace the spout in its correct position.
12) Allow the icemaker to sit for 10 minutes before operation. If you placed a clamp on the
reservoir hose in step 11, remove it before operation.
13) In bad or severe water conditions, clean the oat switch assembly as described below.
Otherwise, continue to step 14.
a. Remove the oat switch assembly from the reservoir cover.
b. Wipe down the oat switch assembly with the cleaning solution.
c. Rinse the oat switch assembly thoroughly with clean water.
d. Replace the oat switch assembly in its correct position.
14) Plug the unit back in. Move the power switch to the "ON" position.
15) Allow the unit to make ice using the solution. When ice stops coming out, move the
power switch to the "OFF" position. Unplug the unit from the electrical outlet.
16) Remove the drain plug to drain any remaining solution.
17) After all of the solution has drained, replace the drain plug in its correct position.
Note: If you do not sanitize the icemaker, go to step 9 in "IV.B.5. Sanitizing
Procedure - Final."
18) Remove the spout. Using a clean container, pour water over the extruding head until the
water starts to ow through the overow hose.
19) Remove the drain plug to drain the water.
20) After all of the water has drained, replace the drain plug in its correct position.
55
Page 56
c) Sanitizing Solution
Dilute 1.25 . oz. (37 ml or 2.5 tbs) of a 5.25% sodium hypochlorite solution (chlorine
bleach) with 2.5 gal. (9.5 l) of warm water. This is a minimum amount. Make more
solution if necessary. Using a chlorine test strip or other method, conrm that you have a
concentration of about 200 ppm. IMPORTANT! For safety and maximum effectiveness,
use the solution immediately after dilution.
d) Sanitizing Procedure - Initial
1) Remove the spout if not already removed. Pour the sanitizing solution over the extruding
head until the evaporator assembly and the reservoir are full and the solution starts to
ow through the overow hose.
2) Remove the packing.
3) Pour some of the sanitizing solution into a separate, clean container. Use this sanitizing
solution and a clean cloth to wipe down the slope, scoop, scoop holder, spout, and
packing.
4) Rinse the parts thoroughly with clean water.
5) Replace the packing and spout in their correct positions.
6) Make sure at least 10 minutes have elapsed since you poured the sanitizing solution
into the evaporator assembly, then plug the unit back in. Move the power switch to the
"ON" position.
7) Allow the unit to make ice using the solution. When ice stops coming out, move the
power switch to the "OFF" position. Unplug the unit from the electrical outlet.
e) Sanitizing Procedure - Final
1) Remove the drain plug to drain any remaining solution.
2) After all of the solution has drained, replace the drain plug in its correct position.
3) Remove the spout. Pour the sanitizing solution over the extruding head until the solution
starts to ow through the overow hose. Replace the spout in its correct position.
4) Allow the icemaker to sit for 10 minutes before operation.
5) Plug the unit back in. Move the power switch to the "ON" position.
6) Allow the unit to make ice using the solution. When ice stops coming out, move the
power switch to the "OFF" position. Unplug the unit from the electrical outlet.
7) Remove the drain plug to drain any remaining solution.
8) After all of the solution has drained, replace the drain plug in its correct position.
9) Remove the spout. Using a clean container, pour water over the extruding head until the
water starts to ow through the overow hose. Replace the spout in its correct position.
10) Remove the drain plug to drain the water.
11) After all of the water has drained, replace the drain hose, drain plug, drain clamp and
all other removed parts in their original and correct positions. WARNING! CHOKING
HAZARD: Ensure all components, fasteners, and thumbscrews are securely in
place. Make sure that none have fallen into the storage bin.
56
Page 57
12) Open the water supply line shut-off valve.
13) Plug the unit back in. Move the power switch to the "ON" position and allow the
icemaker to run. Check for leaks.
14) After 30 minutes, move the power switch to the "OFF" position. Unplug the unit.
15) Pour warm water into the storage bin to melt all of the ice, then clean the storage bin
liner, door liner, and door gasket with a neutral cleaner. Rinse thoroughly after cleaning.
16) Plug the unit back in. Move the power switch to the "ON" position to start the automatic
icemaking process.
C. Storage Bin Drain
In some conditions, slime may build up inside the storage bin drain and prevent water
from draining properly. To prevent this buildup, perform the following procedure once
every 3 months or as often as necessary for conditions.
NOTICE
If the storage bin drain becomes clogged, water could build up in the bin and
overow, leading to costly water damage.
1) Move the power switch to the "OFF" position. WARNING! To reduce the risk of
electric shock, do not touch the power switch with damp hands.
2) Remove all ice from the storage bin.
3) Mix a batch of sanitizing solution by diluting 1.25 . oz. (37 ml or 2.5 tbs) of a
5.25% sodium hypochlorite solution (chlorine bleach) with 2.5 gal. (9.5 l) of warm water.
Using a chlorine test strip or other method, conrm that you have a concentration of
about 200 ppm.
4) Slowly pour the sanitizing solution into the storage bin.
5) After all of the solution has drained, clean the storage bin liner with a neutral cleaner.
Rinse thoroughly with clean water.
6) Move the power switch to the "ON" position to start the automatic icemaking process.
57
Page 58
D. Condenser
Check the condenser once a year, and clean if required by following the steps below.
More frequent cleaning may be required depending on location.
WARNING
• Move the power switch to the "OFF" position, then unplug the unit from the
electrical outlet before cleaning the condenser.
• To reduce the risk of electric shock, do not touch the power switch or plug with
damp hands.
• Condenser ns are sharp. Use care when cleaning.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Remove the 2 screws securing the front panel, then remove the panel. See Fig. 17.
3) Remove the 2 screws securing the louver, then remove the louver.
4) Use a brush attachment on a vacuum cleaner to gently clean the condenser ns. Do not
use too much force, otherwise the ns could be damaged.
5) Replace the louver and front panel in their correct positions. Ensure that the screws are
securely in place.
6) Plug the unit back in. Move the power switch to the "ON" position to start the automatic
icemaking process.
Condenser
Front Panel
Screws
Fig. 17
Louver
Screws
58
Page 59
VII. Preparing the Icemaker for Periods of Non-Use
During extended periods of non-use, extended absences, or in sub-freezing
temperatures, follow the instructions below. When the icemaker is not used for two or
three days under normal conditions, it is sufficient to move the power switch to the "OFF"
position.
WARNING
Only qualied service technicians should service this icemaker.
NOTICE
During extended periods of non-use, extended absences, or in sub-freezing
temperatures, follow the instructions below to reduce the risk of costly water
damage.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet. WARNING! To reduce the risk of electric shock, do not touch the power
switch or plug with damp hands.
2) Close the water supply line shut-off valve.
3) While maintaining a hold on the door, remove the hinge stop pin from hinge (B). Pull out
the bottom of the door slightly, then gently remove the door from hinge (A). See Fig. 15.
4) Remove the 2 screws securing the top panel, then lift it off.
5) Remove all ice from the storage bin.
6) Remove the screws securing the upper rear panel, then remove it.
7) Remove the clamp securing the drain plug, then lower the drain hose into a container.
See Fig. 16. Remove the drain plug to drain the water from the evaporator assembly and
reservoir.
8) After all of the water has drained, replace the drain hose, drain plug, drain clamp and all
other removed parts in their original and correct positions.
9) Open the water supply line drain valve.
10) Auxiliary Codes A-1 and Earlier: Skip to step 11. Auxiliary Codes A-2 and Later: Plug the unit back in. Move the power switch to the
"ON" position.
11) From the water supply line drain valve, blow the water supply line out using compressed
air or carbon dioxide.
12) Auxiliary Codes A-1 and Earlier: Skip to step 13.
Auxiliary Codes A-2 and Later: Move the power switch to the "OFF" position, then
unplug the unit from the electrical outlet.
13) Close the water supply line drain valve.
14) Clean the storage bin by using a neutral cleaner. Rinse thoroughly after cleaning.
59
Page 60
VIII. Disposal
This unit contains refrigerant and must be disposed of in accordance with applicable
national, state, and local codes and regulations. Refrigerant must be recovered by
properly certied service personnel.
60
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.