Hoshizaki SRH3 KM-2500SWH3, SRH/3, KM-1301SAH/3 Control Board with Harvest Pump Timer Diagnosis

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2."G" Control Board with Harvest Pump Timer Diagnosis

3)Power On: Turn on the power supply, then move the control switch to the "ICE" position. A 5‑sec. delay occurs. CB red "POWER OK" LED and green "BC CLOSED" LED turn on. If yellow "BC OPEN" LED is on, check CB K4 jumper.

Note: • CB red "POWER OK" LED remains on unless the 10.5VAC power supply is interrupted (K2 connector).

•Check CB using the steps in "II.C. Control Board Check."

•Confirm CB green "BC CLOSED" LED is on. If CB yellow "BC OPEN" LED is on, confirm CB K4 jumper is in place. Otherwise, CB yellow "BC OPEN" LED is on and appliance will not start.

a)Power On Diagnosis: If CB red "POWER OK" LED is off, confirm 10A fuse is good. Check for 115VAC at control switch #1 (BR) to neutral (W) then at control switch

#2 (P) to neutral (W). If 115VAC is present on #1 (BR) and not on #2 (P), replace control switch. If 115VAC is present on control switch #2 (P), check for 115VAC at HPS (P) to neutral (W) then HPS (BK) to neutral (W). If 115VAC is present at HPS

(P)and not at HPS (BK), HPS is open. See HPS Diagnosis below. If 115VAC is present at HPS (BK), check for 10.5VAC at CB K2 #1 red wire to CB K2 #2 red wire. If 10.5VAC is not present, check that the cleaning valve interlock switch is closed. Next, check CT continuity. If open, replace CT.

b)HPS Diagnosis: Confirm FM is energized and fan blade turns freely. Confirm condenser coil is not dirty. Confirm that the location meets installation requirements. See the appliance's instruction manual for details. Confirm there are no restrictions in the refrigeration circuit.

Harvest Cycle: HGV, strainer, or check valve.

Freeze Cycle: FM, FMR, TXV, HM, LLV, WRV, strainer, check valve, drier, damaged line set or fitting, and fan blade for binding.

Let refrigeration circuit pressures equalize. If HPS does not reset and pressures are equalized, replace HPS. If pressures are not equalized, reclaim refrigerant and diagnose refrigeration circuit restriction.

4)1-Min. Fill Cycle – LED 4 is on. WV and X11 relay energize. After 1 min., CB checks for a closed FS. If FS is closed, the harvest cycle begins. If harvest cycle begins (Comp, HGV, FMR energized), continue to step 5a. If FS is open, WV remains energized through additional 1-min. fill cycles until water enters the water tank and FS closes (low water safety protection during initial start up and at the end of each harvest). Diagnosis: Check that water enters the water tank. If not, check that the water supply line shut-off valve is open and screens or external filters are clear. Check for 115VAC at CB K1 #6 (O) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present, and WV does not energize, check for 115VAC at WV. If 115VAC is present, check coil continuity. If open, replace WV. If the water tank fills, but the appliance fails to start harvest (Comp energized), check for open FS. See "II.E. Float Switch Check and Cleaning." If FS is closed and CB fails to start the harvest cycle after 1 min., replace CB.

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Contents Superior Degree Reliability Hoshizaki AMERICA, INC Contents Page 100 Important Safety Information Additional Warning for Remote Models Model Shown KM-1301SAH3 Air-Cooled Models SAH/3Model Shown KM-1301SWH3 Water-Cooled Models SWH/3/-MModel Shown KM-1301SRH3 Remote Models SRH/3Water-Cooled Models SWH/3 KMH ConstructionModel Shown KMH-2000SWH3 Model Shown KMH-2000SRH3 Water Tank DiagramWater Supply KM-2500SRH3 Water Shutdown Bin Full Icemaker Off Ice Level Lowered Restart Sequence of Operation Flow ChartTo 1 -Minute Fill Cycle Harvest Pump Timer Startup Control Board with Harvest Pump Timer OperationService 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 Correct LED Board Lighting Sequence Control Board CheckBin Control Check Float Switch Check Float Switch Check and CleaningFloat Switch Cleaning Thermistor Check No Ice Production Diagnostic TablesNo Ice Production Possible Cause Freeze-Up Possible Cause Harvest Cycle Freeze-UpFreeze-Up Possible Cause Low Ice ProductionFreeze Cycle 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 Part Number Alarm Buzzer Bin Control Switch Open LED yellowK2 Connector S5 Dip Switch K5 black ConnectorNo. of Beeps Type of Alarm Every 3 sec LED Lights and Audible Alarm SafetiesSequence Step Energized Time LEDs are On Components Min Max AvgControl Board Default Dip Switch Settings Settings and AdjustmentsS5 Dip Switch S4 Dip Switch G Control BoardsHarvest Timer S4 dip switch 1 S4 Dip Switch Setting Time sec Inlet Water Pump-Out Timer S4 dip switch 3Valve Control Board 1st Pump-Out S4 Dip Switch Setting Frequency Pump-Out Frequency Control S4 dip switch 5S4 Dip Switch Setting Control BoardFreeze Timer S4 dip switch 9 Factory Use S4 dip switchControl Board S4 Dip Switch Setting Pump Motor Time sec S4 Dip Switch Setting Time MinFloat Switch Selector S5 dip switch 1 G Control Board Control SwitchRefill Counter S5 dip switch 2 through 5 G Control Board Refrigeration Circuit Service Information IV. Refrigeration Circuit and Component Service InformationRefrigerant Recovery Evacuation and Recharge R-404A BrazingPage Component Component Service InformationWater Regulating Valve Adjustment water-cooled models Maintenance Schedule MaintenanceFrequency Area Task Remove the water from the icemaker water supply line VI. Preparing the Icemaker for Periods of Non-UseDrain the water tank Page VII. Disposal VIII. Technical Information Specification and Performance DataKM-1301SAH KM-1301SAH3 Electric & Water Consumption KM-1301SWH1770 KM-1301SWH3237 240KM-1301SRH with URC-14F 463 KM-1301SRH3 with URC-14F192 214KM-1400SWH-M 1700 KM-1400SWH3-M1720 2301462 KM-1601SAH2450 2281456 KM-1601SAH32610 241 KM-1601SWH257 KM-1601SWH3 12.8 a 5 Min. Freeze AT 104F/WT 80F 375 785213 755 KM-1601SRH with URC-22F Auxiliary Codes S-2 and Later352 207202 504247 781 KM-1601SRH3 with URC-22F Auxiliary Codes S-2 and Later 2480 KM-1900SAH1859 KM-1900SAH31876 KM-1900SWH1850 16501814 KM-1900SWH32137 239KM-1900SRH with URC-21F 1857 KM-1900SRH with URC-22F2500 3281965 KM-1900SRH3 with URC-21F2680 332KM-1900SRH3 with URC-22F 2096 KM-2100SWH31794 3210 KM-2100SRH3 with URC-22F382 2702408 KM-2500SWH32174 3780 KM-2500SRH3 with URC-23F1821 KMH-2000SWH2410 1464KMH-2000SWH3 1944 KMH-2000SRH with URC-22F2570 307KMH-2000SRH3 with URC-22F KM-1601SWH, KM-1601SRH, KM-1900SH, KMH-2000SH Wiring DiagramsKM-2500SH3, KMH-2000SH3 Auxiliary Code Diagrams with Harvest Pump Timer Relays G Control BoardKM-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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Manual 84 pages 2.34 Kb

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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