Hoshizaki SWH/3, SRH/3 KM-2100SWH3, SRH/3 KM-1400SWH-M, SWH3-M KM-1601SAH/3, KM-1301SAH/3 Off

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h)Freeze Termination Diagnosis: After 5 min. in freeze, disconnect CB K5 FS connector. 15 sec. later appliance should switch out of the freeze cycle (15 second delay after FS opens before terminating the freeze cycle). If appliance remains in freeze longer than 15 sec. after FS removed, replace CB. If appliance switches with FS removed but would previously not switch out of freeze with FS connected (long freeze - 3 beep alarm), see "II.E. Float Switch Check and Cleaning."

Note: Normal freeze cycle will last 20 to 40 min. depending on model and conditions. Cycle times and pressures should follow performance data provided in this manual. See "VIII.A. Specification and Performance Data."

i)Short Freeze Cycle Diagnosis: Confirm water tank fills and overflows during 1 min. fill and harvest cycles. If not, check water supply filters, shut-off valve, WV screen. If water tank empties before 5 min. timer terminates and freeze cycle is short, check that CV is not leaking by (water flowing down the potable drain). If CV is leaking by, remove and clean CV, replace rubber seat and spring if necessary. If water tank is full, see "II.E. Float Switch Check and Cleaning" for erratic operating FS.

7)Pump-Out Cycle – LEDs 1, 3, and 2 are on (10/20 second pump-out).Timing of the first pump-out is dependent on CB. "E" CB first pumpout is after the first freeze cycle. "G" CB first pump-out is determined by S4 dip switch 5 & 6. See the table below.

"E" & "G" Control Board Settings

1st Pump-Out

 

 

 

 

 

S4 Dip Switch Setting

Pump-Out

"E" Control Board

"G" Control Board

No. 5

No. 6

Frequency

 

 

 

 

 

 

 

OFF

OFF

Every cycle

After 1st freeze cycle

After 2nd freeze cycle

 

 

 

 

 

ON

OFF

Every 2 cycles

 

After 3rd freeze cycle

 

 

 

 

 

OFF

ON

Every 5 cycles

 

After 6th freeze cycle

ON

ON

Every 10 cycles

 

After 11th freeze cycle

 

 

 

 

 

Comp and FMR continue, HGV energizes. If S4 dip switch 3 & 4 are set to 3 off and

4 on, LED 4 turns on and WV energizes. FM and LLV deenergize. PM stops for 2 sec., then reverses for 10/20 sec. depending on pumpout timer (S4 dip switch 3 & 4) setting. When the pumpout timer terminates, pumpout is complete. The pump-out frequency control (S4 dip switch 5 & 6) is factory set, and generally no adjustment is required. However, the pumpout frequency control can be set to have a pumpout occur every cycle, or every 2, 5, or 10 cycles. For details, see "III.C.4. PumpOut Frequency Control (S4 dip switch 5 & 6)."

Pump-Out Diagnosis: In the freeze cycle before pump-out (see table above), disconnect CB black K5 connector (FS connector) after 5 min. of freeze. Check that PM stops and re-starts and water is flowing down the drain through CV. If PM does not stop and re-start, check that CB LEDs 1, 3, and 2 are on. If not, replace CB. If LEDs 1, 3, and 2 are on and PM does not energize, check for 115VAC at CB K1 #5 (DBU) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present, make sure the drain line is not clogged and that CV is clean and operating properly.

Confirm FM and LLV de-energize. If FM or LLV is energized with LEDs 1, 3, and 2 on, 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/3Model Shown KMH-2000SWH3 KMH ConstructionWater-Cooled Models SWH/3 Model Shown KMH-2000SRH3 Water Tank DiagramWater Supply KM-2500SRH3 Water To 1 -Minute Fill Cycle Sequence of Operation Flow ChartShutdown Bin Full Icemaker Off Ice Level Lowered Restart 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 Possible Cause Diagnostic TablesNo Ice Production Freeze-Up Possible Cause Harvest Cycle Freeze-UpLow Ice Production Possible Cause Long Harvest Cycle Low Ice ProductionFreeze-Up Possible Cause Freeze CycleLow Ice Production Possible Cause Long Freeze Cycle III. Controls and Adjustments Control Board Control Board LayoutControl Board S5 Dip Switch K5 black Connector Bin Control Switch Open LED yellowPart Number Alarm Buzzer K2 ConnectorEnergized Time LEDs are On Components Min Max Avg LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Every 3 sec Sequence StepControl Board Default Dip Switch Settings Settings and AdjustmentsHarvest 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 Control Board Pump-Out Frequency Control S4 dip switch 5Control Board 1st Pump-Out S4 Dip Switch Setting Frequency S4 Dip Switch SettingS4 Dip Switch Setting Time Min Factory Use S4 dip switchFreeze Timer S4 dip switch 9 Control Board S4 Dip Switch Setting Pump Motor Time secRefill 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 Evacuation and Recharge R-404A BrazingPage Component Component Service InformationWater 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 Electric & Water Consumption KM-1301SWH240 KM-1301SWH31770 237KM-1301SRH with URC-14F 214 KM-1301SRH3 with URC-14F463 192KM-1400SWH-M 230 KM-1400SWH3-M1700 1720228 KM-1601SAH1462 24502610 KM-1601SAH31456 257 KM-1601SWH241 KM-1601SWH3 12.8 a 5 Min. Freeze AT 104F/WT 80F 213 785375 207 KM-1601SRH with URC-22F Auxiliary Codes S-2 and Later755 352247 504202 781 KM-1601SRH3 with URC-22F Auxiliary Codes S-2 and Later 2480 KM-1900SAH1859 KM-1900SAH31650 KM-1900SWH1876 1850239 KM-1900SWH31814 2137KM-1900SRH with URC-21F 328 KM-1900SRH with URC-22F1857 2500332 KM-1900SRH3 with URC-21F1965 2680KM-1900SRH3 with URC-22F 1794 KM-2100SWH32096 270 KM-2100SRH3 with URC-22F3210 3822174 KM-2500SWH32408 3780 KM-2500SRH3 with URC-23F1464 KMH-2000SWH1821 2410KMH-2000SWH3 307 KMH-2000SRH with URC-22F1944 2570KMH-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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