Hoshizaki SRH/3 KM-1900SAH/3, SRH/3 KM-2100SWH3, SRH/3 KM-1400SWH-M, SWH3-M KM-1601SAH/3, SWH/3

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5a) Initial Harvest Cycle – LEDs 1, 4, and 2 are on. WV and X11 relay continue. Comp, FMR, HGV, and X10 relay energize. CB monitors the warming of the evaporator via the thermistor located on the suction line. When the thermistor reaches 48°F (9°C), CB reads 3.9 kΩ from the thermistor and turns harvest termination over to the harvest timer (S4 dip switch 1 & 2). The harvest timer has settings of 60, 90, 120, and 180 sec. The pump‑out timer (S4 dip switch 3 & 4) acts in place of the harvest timer during cycles with a pump-out (S4 dip switch 5 & 6). WV and X11 relay are energized during harvest for a maximum of 6 min. or the length of harvest minus 50 sec., whichever is shorter.

50 sec. before harvest terminates, PM energizes. See step 5b below.

a)Comp Diagnosis: Check that evaporator is warming. If not, confirm that Comp energizes. If not, check for 115VAC at CB K1 #1 or #9 (V) to neutral (W). If 115VAC is not present, check for 115VAC at CB K1 #7 or #10 (BR) to neutral (W). If 115VAC is present at #7 or #10 (BR) and not at #1 or #9 (V), replace CB. If 115VAC is present, check for 115VAC at CR or MC solenoid. If 115VAC is present, confirm contacts are closed. If not, replace CR or MC. If CR or MC contacts are closed, check Comp external overload, Comp start and run capacitors, Comp start relay, and Comp motor winding. If Comp is energized and evaporator is not warming, check that HGV energizes and opens. Check for 115VAC at CB K1 #2 (P) to a neutral (W). If 115VAC is not present and LED 2 is on, replace CB. If 115VAC is present, check coil voltage and continuity. Replace as needed. Confirm that LLV is de-energized and closed (not bypassing). If energized, replace CB. If de-energized and bypassing, replace LLV. Confirm WRV is not leaking by. If evaporator is warming,PM energizes for the last 50 sec. of harvest.

b)HGV Diagnosis: If Comp is energized and evaporator is not warming, check that HGV energizes and opens. Check for 115VAC at CB K1 #2 (P) to neutral (W).

If 115VAC is not present, replace CB. If 115VAC is present, check for 115VAC at HGV coil and check HGV coil continuity. Replace as needed.

c)LLV Diagnosis: Confirm that LLV is de-energized and closed (not bypassing). If energized, replace CB. If de-energized and bypassing, replace LLV.

d)WRV Diagnosis: Confirm WRV is not leaking by.

5b) Harvest Pump Timer – LEDs 1, 3, and 2 are on. When the thermistor reaches 48°F (9°C), CB reads 3.9 kΩ from the thermistor and turns harvest termination over to the harvest timer (S4 dip switch 1 & 2). 50 sec. before the harvest timer terminates, LED

3 turns on and PM energizes. Comp, FMR, HGV, and X10 relay continue. LED 4 turns off, WV and X11 relay de‑energize.

Diagnosis: Place a thermometer on the suction line next to the thermistor. Has it warmed to 48°F (9°C) or warmer? Confirm thermistor status. See "II.F. Thermistor Check." If the thermistor reading is in proper range, dip switch 7 is on, and PM does not energize 50 sec. before harvest terminates, replace CB. If WV continues, check for 115VAC at CB K1 #6 (O). If 115VAC is present, and LED 4 is off, replace CB. If LED 3 is on and PM is not energized, check for 115VAC at CB K1 #5 (DBU). If 115VAC is not present, replace CB. If 115VAC is present and PM is not energized, check for 115VAC at X10 relay terminal #7 (Y) to neutral (W). If 115VAC is not present, check for 115VAC at X10 relay terminal #3 (P) to neutral (W) and X10 relay terminal #5 (Y) to neutral (W).

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Contents Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page 100 Important Safety Information Additional Warning for Remote Models Air-Cooled Models SAH/3 Model Shown KM-1301SAH3Water-Cooled Models SWH/3/-M Model Shown KM-1301SWH3Remote Models SRH/3 Model Shown KM-1301SRH3Model Shown KMH-2000SWH3 KMH ConstructionWater-Cooled Models SWH/3 Model Shown KMH-2000SRH3 Diagram Water TankWater Supply KM-2500SRH3 Water To 1 -Minute Fill Cycle Sequence of Operation Flow ChartShutdown Bin Full Icemaker Off Ice Level Lowered Restart Control Board with Harvest Pump Timer Operation Harvest Pump Timer StartupService Diagnosis G Control Board without Harvest Pump Timer Diagnosis Page Page OFF Shutdown E and G Control Board Control Board with Harvest Pump Timer Diagnosis Page Page Page Every cycle After 2nd freeze cycle Shutdown G Control Board Control Board Check Control Correct LED Board Lighting SequenceBin Control Check Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Thermistor Check No Ice Production Possible Cause Diagnostic TablesNo Ice Production Freeze-Up Freeze-Up Possible Cause Harvest CycleFreeze Cycle Low Ice ProductionFreeze-Up Possible Cause Low Ice Production Possible Cause Long Harvest CycleLow Ice Production Possible Cause Long Freeze Cycle III. Controls and Adjustments Control Board Control Board LayoutControl Board K2 Connector Bin Control Switch Open LED yellowPart Number Alarm Buzzer S5 Dip Switch K5 black ConnectorSequence Step LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Every 3 sec Energized Time LEDs are On Components Min Max AvgControl Board Settings and Adjustments Default Dip Switch SettingsHarvest Timer S4 dip switch 1 S4 Dip Switch G Control BoardsS5 Dip Switch Valve Pump-Out Timer S4 dip switch 3S4 Dip Switch Setting Time sec Inlet Water S4 Dip Switch Setting Pump-Out Frequency Control S4 dip switch 5Control Board 1st Pump-Out S4 Dip Switch Setting Frequency Control BoardControl Board S4 Dip Switch Setting Pump Motor Time sec Factory Use S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Time MinRefill Counter S5 dip switch 2 through 5 G Control Board Control SwitchFloat Switch Selector S5 dip switch 1 G Control Board Refrigerant Recovery IV. Refrigeration Circuit and Component Service InformationRefrigeration Circuit Service Information Brazing Evacuation and Recharge R-404APage Component Service Information ComponentWater Regulating Valve Adjustment water-cooled models Frequency Area Task MaintenanceMaintenance Schedule Drain the water tank VI. Preparing the Icemaker for Periods of Non-UseRemove the water from the icemaker water supply line Page VII. Disposal KM-1301SAH Specification and Performance DataVIII. Technical Information KM-1301SAH3 KM-1301SWH Electric & Water Consumption237 KM-1301SWH31770 240KM-1301SRH with URC-14F 192 KM-1301SRH3 with URC-14F463 214KM-1400SWH-M 1720 KM-1400SWH3-M1700 2302450 KM-1601SAH1462 2282610 KM-1601SAH31456 257 KM-1601SWH241 KM-1601SWH3 12.8 a 5 Min. Freeze AT 104F/WT 80F 213 785375 352 KM-1601SRH with URC-22F Auxiliary Codes S-2 and Later755 207247 504202 781 KM-1601SRH3 with URC-22F Auxiliary Codes S-2 and Later KM-1900SAH 2480KM-1900SAH3 18591850 KM-1900SWH1876 16502137 KM-1900SWH31814 239KM-1900SRH with URC-21F 2500 KM-1900SRH with URC-22F1857 3282680 KM-1900SRH3 with URC-21F1965 332KM-1900SRH3 with URC-22F 1794 KM-2100SWH32096 382 KM-2100SRH3 with URC-22F3210 2702174 KM-2500SWH32408 KM-2500SRH3 with URC-23F 37802410 KMH-2000SWH1821 1464KMH-2000SWH3 2570 KMH-2000SRH with URC-22F1944 307KMH-2000SRH3 with URC-22F Wiring Diagrams KM-1601SWH, KM-1601SRH, KM-1900SH, KMH-2000SHKM-2500SH3, KMH-2000SH3 Diagrams with Harvest Pump Timer Relays G Control Board Auxiliary CodeKM-1301SH3 Auxiliary Code T-0, U-0 KM-1301SH Auxiliary Code U-1 and Later and KM-1601SAH KM-1301SH3 Auxiliary Code U-1 and Later and KM-1601SAH3 KM-1400SWH-M KM-1400SWH3-M
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SRH/3 KM-1900SAH/3, SRH3 KM-2500SWH3, SRH3 KMH-2000SWH/3, SWH/3, KM-1301SAH/3 specifications

The Hoshizaki KM-1301SRH/3, KM-1301SWH/3, and KM-1301SAH/3 are advanced ice makers designed for commercial use, addressing a wide variety of needs in restaurants, hotels, and bars. These models are known for their efficiency, durability, and innovative technologies that ensure the production of high-quality ice.

One of the standout features of these units is their ability to produce a high volume of ice, reaching up to 1,300 pounds per day, which is crucial for establishments with heavy ice demands. The machines utilize advanced cooling technology, allowing for faster ice production and minimizing the time required to refill ice bins. This makes them ideal for busy settings where speed and efficiency are paramount.

The KM-1301 series employs a unique stainless steel exterior that not only ensures longevity and resistance to corrosion but also enhances the aesthetic appeal of any commercial kitchen or bar. The interior is designed for easy cleaning, helping to maintain hygiene standards vital for food safety.

These ice makers utilize the proprietary Hoshizaki Cubelet Ice system, producing small, chewy ice cubes that are perfect for various beverages and food displays. The advanced design of the ice-making mechanism ensures that ice is formed quickly and efficiently, reducing energy consumption. Additionally, Hoshizaki’s CycleSaver technology optimizes the production process by reducing the amount of water used, making these machines environmentally friendly.

Another characteristic is their self-diagnostic capability, which allows for real-time monitoring of unit performance and quicker troubleshooting, minimizing downtime. The built-in alerts notify operators of any issues or maintenance needs, ensuring that the ice-making process remains uninterrupted.

The KM-1301 series also provides user-friendly controls that allow easy adjustments and monitoring of ice production settings. This flexibility enables businesses to meet varying ice demands based on seasonality or special events.

In summary, the Hoshizaki KM-1301SRH/3, KM-1301SWH/3, and KM-1301SAH/3 ice makers are exemplary choices for commercial ice production. With their high output, durable design, energy efficiency, innovative technologies, and user-friendly features, they cater effectively to the rigorous demands of the foodservice industry while maintaining a commitment to quality and sustainability.
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