1.Cleaning Procedure

1)Dilute 16 fl. oz. (473 ml) of the recommended cleaner Hoshizaki "Scale Away" or "LIMEA-WAY" (Economics Laboratory, Inc.) with 3 gal. (11 l) of warm water.

2)Remove all ice from the evaporator and the storage bin.

Note: To remove cubes on the evaporator, turn off the power supply and turn it back on after 3 minutes. The harvest cycle starts and the cubes will be removed from the evaporator.

3)Turn off the power supply.

4)Remove the front panel, then remove the insulation panel by lifting up the panel slightly and pulling it towards you.

5)Remove the base cover, then disconnect one end of the pump tubing to drain the water tank. See Fig. 7. After the water tank has drained, reconnect the pump tubing.

Disconnect This

End of Pump

Tubing to Drain

Water Tank

Base Cover

Fig. 7

 

6)In bad or severe water conditions, clean the float switch assembly as described below. Otherwise, continue to step 7.

a.Disconnect the vent tube and the flush tube from the top of the float switch, then remove the float switch assembly. Remove the rubber boot from the bottom of the assembly.

b.Remove the retainer rod from the bottom of the float switch housing, then remove the float. Be careful not to bend the retainer rod excessively when removing it.

c.Wipe down the float switch assembly's housing, shaft, float, and retainer rod with cleaning solution. Clean the inside of the rubber boot and hose with cleaning solution. Rinse the parts thoroughly with clean water.

d.Reassemble the float switch assembly and replace it and the rubber boot in their correct positions. Reconnect the vent tube and the flush tube.

7)Pour the cleaning solution into the water tank.

8)Fully open the cleaning valve on the left side wall of the machine compartment.

9)Move the control switch on the control box to the "WASH" position.

10)Replace the insulation panel and the front panel in their correct positions.

11)Turn on the power supply to start the washing process.

12)Turn off the power supply after 30 minutes.

13)Remove the front panel.

14)Disconnect one end of the pump tubing to drain the water tank. After the water tank has drained, reconnect the pump tubing.

15)Move the control switch to the "ICE" position.

16)Close the cleaning valve.

Note: The icemaker will not operate unless the cleaning valve is completely closed.

17)Replace the front panel in its correct position.

18)Turn on the power supply to fill the water tank with water.

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Hoshizaki KM-901MWH, KM-901MAH, KM-901MRH/3 service manual Cleaning Procedure