Hoshizaki FS-1022MLH-C service manual Float Switch Check and Cleaning, Float Switch Cleaning

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E. Float Switch Check and Cleaning

1.Float Switch Check

1)Remove the front panel, then move the power switch to the "OFF" position.

2)Move the control switch to the "DRAIN" position.

3)Move the power switch to the "ON" position.

4)Allow the water to drain from the evaporator, then move the power switch to the "OFF" position and the control switch to the "ICE" position.

5)Unplug the unit from the electrical outlet.

6)Remove the control box cover.

7)Remove CB K8 connector and check F/S continuity. Both the UF/S and LF/S should be open. Check continuity between CB K8 connector pin #5 black (BK) (common) wire and K8 connector pin #6 red (R) (UF/S) wire. Next, check continuity between CB K8 connector pin #5 black (BK) (common) wire and K8 connector pin #7 dark blue (DBU) (LF/S) wire. If both are open, continue to step 5. If either are closed, follow the steps in

"IV.E.2. Float Switch Cleaning." After cleaning F/S, check UF/S and LF/S again. Replace if necessary.

8)Replace CB K8 connector in its correct position.

9)Plug the unit into the electrical outlet, then move the power switch to the "ON" position and let the water reservoir fill.

10)Once the reservoir is full and GM starts, move the power switch to the "OFF" position.

11) Unplug the unit from the electrical outlet.

12)Remove CB K8 connector and check F/S continuity. Both the UF/S and LF/S should be closed. Check continuity between CB K8 connector pin #5 black (BK) (common) wire and K8 connector pin #6 red (R) (UF/S) wire. Next, check continuity between CB K8 connector pin #5 black (BK) (common) wire and K8 connector pin #7 dark blue (DBU)

(LF/S) wire. If either are open, follow the steps in "IV.E.2. Float Switch Cleaning." After cleaning F/S, check UF/S and LF/S again. Replace if necessary.

13)Replace CB K8 connector in its correct position. Replace the control box cover in its correct position.

14)Plug the unit into the electrical outlet, then move the power switch to the "ON" position to start the automatic icemaking process.

15)Replace the front panel in its correct position.

2. Float Switch Cleaning

Depending on local water conditions, scale may build up on F/S. Scale on F/S can cause inconsistant operation of UF/S and LF/S. In this case, both UF/S and LF/S should be cleaned and checked.

1)Remove the front panel, then move the power switch to the "OFF" position.

2)Unplug the unit from the electrical outlet.

2) Remove F/S assembly from the reservoir cover. See Fig. 5.

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Contents SRC-10H Hoshizaki AMERICA, INC Contents Page Important Safety Information Serious injuryIndicates important information about the use and care UnitFor SRC Specifications Icemaker FS-1022MLH-CCondensing Unit SRC-10HII. General Information Construction Icemaker FS-1022MLH-CCondensing Unit a SRC-10H Icemaking Unit Sequence of Operation Sequence Cycles and ShutdownDrain Cycle Shutdown Cycle Control Board Sequence Flow Chart FS-1022MLH-C/SRC-10H Sequence Flow ChartControl Board Control Board Layout Control BoardLED Lights and Audible Alarm Safeties No. of Beeps Type of Alarm Reset Options Every 5 secSequence Step Energized Components Min MaxControls and Adjustments S1 Dip Switch Setting Infrared Sensor Shutdown DelaySeconds 1.6 minutes Factory Default S1 Dip Switch Setting Drain Timer Interval S1 Dip Switch Setting Dispense TimeS1 Dip Switch Mechanical BackupShutdown Delay Bin ControlIII Wiring Diagrams Control Low-Pressure Switch Safety Low-Pressure Switch Manual ResetHigh-Pressure Switch Performance Data FS-1022MLH-C with SRC-10HIV. Service Diagnosis Diagnostic ProcedureIce Production Check Page Page Page Control Board Check 5VDC Page Bin Control Check Infrared Sensor CheckMechanical Backup Bin Control Check Page Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Page Diagnostic Charts No Ice ProductionNo Ice Production Possible Cause Startup No Ice Production Possible Cause Shutdown Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery BrazingEvacuation and Recharge R-404A Important Notes for Component Replacement Evaporator Assembly Components. See FigComponent Evaporator Assembly Removal and Replacement of Cutter Upper Bearing Wear CheckRemoval and Replacement of Extruding Head Removal and Replacement of AugerRemoval and Replacement of Evaporator Page 6b. Lower Housing Removal and Replacement of Gear MotorPage VI. Cleaning and Maintenance Cleaning and Sanitizing InstructionsCleaning Solution Cleaning ProcedureFloat Switch Assembly Reservoir Cover Sanitizing Solution Sanitizing Procedure InitialSanitizing Procedure Final Maintenance Maintenance Schedule Frequency Area TaskPreparing the Icemaker for Long Storage Remove the water from the icemaker water supply lineDrain the evaporator
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