Hoshizaki Ice Machine KML-250MAH, MWH KML-351MAH, MWH KML-451MAH, MWH KML-631MAH, MWH, MRH: Cleaning and Sanitizing Checklist

Cleaning Prep:

• 1. Remove the Front Panel, move the control switch to OFF. After 3 min., move the switch to ICE, then replace the panel.

• 2. After 3 min., remove the Front Panel, move the switch to OFF.

• 3. Remove all ice from the ice storage bin and/or dispenser.

• 4. Remove the Front Insulation Panel, remove the Drain Plug. After the water tank has drained, replace Drain Plug. Replace the Front Insulation Panel.

• 5. After 2 minutes, remove the Front Panel, move the control switch to OFF.

• 6. Dilute Hoshizaki Scale Away with warm water (see Table below). Remove the Front Insulation Panel and pour cleaning solution into the water tank. Replace the Front Insulation Panel.

• 7. Move the service switch to WASH, and the control switch to SERVICE. Replace the Front Panel.

• 8. After 30 minutes, remove Front Panel, then move the control switch to OFF. ATTENTION! To prevent damage to the water pump, do not leave the control switch on SERVICE for extended periods when water tank is empty.

• 9. In bad water conditions, a more thorough cleaning may be required. Move control switch to OFF, then turn off the power supply. Dilute 5 oz. of Scale Away to 1 gallon of warm water. Remove and clean the cube guides, float switch assembly (remove & clean all float parts), water supply tubes, spray tubes, and spray guides. Rinse thoroughly, then replace in their correct positions. Turn the power supply back on. Otherwise, continue to Step 10.

Cleaning Rinse:

• 10. After 2 minutes, remove the Front Panel, move the control switch to ICE. Replace the Front Panel. NOTICE! ICE MACHINE WILL NOT WORK, unless valve is completely closed.

• 11. After 3 minutes, move the service switch to WASH, and the control switch to SERVICE. Replace the Front Panel.

• 12. After 5 minutes, remove the Front Panel, move the service switch to DRAIN. Replace the Front Panel

• 13. After 2 minutes, remove the Front Panel, move the control switch to OFF.

• 14. Repeat 3x (Steps 10 thru 13) to rinse thoroughly. Continue to Sanitation – Step 15 on front..

Step 15: Sanitizing

• Dilute 5.25% chlorine bleach* with warm water (see Table above)

Step 16: Sanitizing

• Remove the front insulation panel

• Pour the sanitizing solution into the water tank

• Replace the front insulation panel

Step 17: Sanitizing

• Move service switch to WASH and control switch to SERVICE, replace the front panel

Step 18: Sanitizing

• After 15 minutes, remove front panel

• Move service switch to DRAIN, replace the front panel

• After 2 minutes, remove front panel

• Move control switch to OFF

Step 19: Rinse 1 (Steps 19-22)

• Move control switch to ICE, replace front panel

Step 20: Rinse 1

• After 3 minutes, remove the front panel

• Move service switch to WASH and control switch to SERVICE, replace the front panel

Step 21: Rinse 1

• After 5 minutes, remove the front panel

• Move service switch to DRAIN, replace the front panel

Step 22: Rinse 1

• After 2 minutes, remove the front panel

• Move control switch to OFF, replace the front panel

Step 23: Rinse 2

• Repeat RINSE 1 (Steps 19–22) for complete ice/food safety

Step 24: Rinse 2

• Clean the dispenser unit / ice storage bin liner with a neutral cleaner (dish soap)

• Rinse thoroughly

Step 25: Rinse 2

• Move control switch to ICE, replace front panel