Hoshizaki 73180 service manual Float Switch Cleaning, Lower Float white Plastic Retainer Clip

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2. Float Switch Cleaning

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 floats can be removed from the shaft during cleaning. If you remove them, note that the blue float is on top (UF/S) and the white float is on bottom (LF/S). See Fig. 5. The floats must be installed with the magnets inside them towards the top of the switch. Installing the floats 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 to start the automatic icemaking process.

Legend: F/S–float switch; LF/S–lower float switch; UF/S–upper float switch

UF/S (R wire)

Common (BK wire)

LF/S (DBU wire)

Magnet (towards top)

Upper Float (blue)

Spring Retainer Clip

Magnet (towards top)

Fig. 5 Lower Float (white)

Plastic Retainer Clip

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Contents 100BAF-DS 100BAF-AD 100BAF-ADDS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Auxiliary Codes A-1 and Earlier Specifications 100BAFAuxiliary Codes A-2 and Later 100BAF-DS 100BAF-DS, 2. Auxiliary Codes A-2 and Later 100BAF-AD 100BAF-AD, 2. Auxiliary Codes A-2 and Later 100BAF-ADDS 100BAF-ADDS, 2. Auxiliary Codes A-2 and Later Front II. General Information ConstructionAuxiliary Codes Rear Auxiliary CodesIcemaking Unit Freeze Cycle Sequence of OperationFill Cycle Auxiliary Codes A-1 and Earlier Auxiliary Codes A-2 and Later Auxiliary Codes A-2 and Later Wiring DiagramIcemaker with Optional Drain Pump HS-0248 100BAF Series Performance DataIce Production Check IV. Service DiagnosisDiagnostic Procedure Page Auxiliary Codes A-2 and Later Bin Control Check Float Switch Check Lower Float white Plastic Retainer Clip Float Switch CleaningDrain Pump Check Optional Drain Pump HS-0248Overview Priming Instructions Float Switch Cleaning No Ice Production Possible Cause Startup Diagnostic ChartsShutdown Fill Cycle and Refill Cycle Shutdown Refrigerant Recovery Removal and Replacement of ComponentsService for Refrigerant Lines Evacuation and Recharge R-134a BrazingComponent Important Notes for Component ReplacementRemoval and Replacement of Evaporator Assembly Components Upper Bearing Wear Check Removal and Replacement of Extruding Head Removal and Replacement of Auger Removal and Replacement of Evaporator Page 5b. Lower Housing Page VI. Maintenance Frequency Area Task Maintenance ScheduleCleaning Solution Cleaning and Sanitizing InstructionsPage Sanitizing Solution Page Cleaning Solution Page Sanitizing Solution Storage Bin Drain Condenser Auxiliary Codes A-1 and Earlier Skip to step VII. Preparing the Icemaker for Periods of Non-UseVIII. Disposal
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