Hoshizaki 73180 service manual Float Switch Cleaning

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3. Float Switch Cleaning

Depending on local water conditions, scale may build up on F/S. Scale on F/S can cause float to stick. In this case, F/S should be cleaned and checked.

1)Move the power switch to the "OFF" position, then unplug the icemaker from the electrical outlet. WARNING! Moving the power switch to the "OFF" position does not de‑energize the power supply to DP. The icemaker must be unplugged to de‑energize the power supply to DP.

2)Disconnect the vent hose from the upper rear panel. See Fig. 7.

3)Remove the rear panels.

4)Remove the reservoir cover from DP assembly. See Fig. 8.

5)Leave F/S assembly connected to the reservoir cover and leave the float on the shaft.

Wipe down F/S assembly and reservoir with a mixture of 1 part recommended cleaner

Hoshizaki "Scale Away" and 25 parts warm water.

6)Rinse F/S assembly and reservoir.

7)Clean the mating surfaces of the reservoir cover and reservoir. Place silicone caulk around the perimeter of the reservoir cover where it contacts the reservoir, then replace the reservoir cover in its original position. Smooth the silicone caulk. NOTICE! The reservoir cover must be properly sealed with silicone caulk or costly water damage may occur.

8)Make sure all hose connections are secure, then reinstall the lower rear panel and upper rear panel in their correct positions. WARNING! Make sure that there are no wires pinched between the covers and icemaker.

9)Resecure the vent hose to the icemaker. NOTICE! The vent hose must be attached and secured to the icemaker or costly water damage may occur. Make certain there are no kinks in the vent hose. DP will not operate correctly with a partially blocked vent hose.

10)Follow the steps in "IV.E.2. Drain Pump Check" to check the drain pump.

Legend: DP–drain pump; F/S–float switch

Reservoir Cover

Seal perimeter with silicone caulk

Float Switch Assembly

Fig. 8

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Contents 100BAF-DS 100BAF-AD 100BAF-ADDS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Specifications 100BAF Auxiliary Codes A-1 and EarlierAuxiliary 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 II. General Information Construction FrontAuxiliary Codes Rear Auxiliary CodesIcemaking Unit Sequence of Operation Freeze CycleFill Cycle Auxiliary Codes A-1 and Earlier Auxiliary Codes A-2 and Later Wiring Diagram Auxiliary Codes A-2 and LaterIcemaker with Optional Drain Pump HS-0248 Performance Data 100BAF SeriesIce Production Check IV. Service DiagnosisDiagnostic Procedure Page Auxiliary Codes A-2 and Later Bin Control Check Float Switch Check Float Switch Cleaning Lower Float white Plastic Retainer ClipDrain Pump Check Optional Drain Pump HS-0248Overview Priming Instructions Float Switch Cleaning Diagnostic Charts No Ice Production Possible Cause StartupShutdown Fill Cycle and Refill Cycle Shutdown Refrigerant Recovery Removal and Replacement of ComponentsService for Refrigerant Lines Brazing Evacuation and Recharge R-134aImportant Notes for Component Replacement ComponentRemoval 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 Maintenance Schedule Frequency Area TaskCleaning and Sanitizing Instructions Cleaning SolutionPage Sanitizing Solution Page Cleaning Solution Page Sanitizing Solution Storage Bin Drain Condenser VII. Preparing the Icemaker for Periods of Non-Use Auxiliary Codes A-1 and Earlier Skip to stepVIII. Disposal
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