Hoshizaki KM-320MAH, MWH KM-515MAH, MRH/3, MRH KM-901MAH, MWH(-M) service manual V. Maintenance

V. Maintenance

The maintenance schedule below is a guideline. More frequent maintenance may be required depending on water quality, the appliance's environment, and local sanitation regulations

WARNING

•Only qualified service technicians should service the appliance.

•To reduce the risk of electric shock, do not touch the control switch or service switch with damp hands

•Before servicing: Move the control switch to the "OFF" position and turn off the power supply. Place the disconnect in the "OFF" position.

Lockout/Tagout to prevent the power supply from being turned back on inadvertently.

•CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after any maintenance is done to the icemaker. Make sure that none have fallen into the dispenser unit/ice storage bin.

		Maintenance Schedule
Frequency	Area	Task
Daily	Scoop	Clean the ice scoop using a neutral cleaner. Rinse thoroughly after
		cleaning.
Bi-Weekly	Air Filters	Inspect. Wash with warm water and neutral cleaner if dirty.
Monthly	External Water	Check for proper pressure and change if necessary.
	Filters
	Icemaker Exterior	Wipe down with a clean, soft cloth. Use a damp cloth containing a
		neutral cleaner to wipe off oil or dirt build up. Clean any chlorine staining
		(rust colored spots) using a non-abrasive cleanser.
	Underside of	Wipe down with a clean cloth and warm water.
	Icemaker and Top
	Kits; Bin Door and
	Snout
Yearly	Icemaker and	Clean and sanitize per the cleaning and sanitizing instructions provided
	Dispenser Unit/Ice	in the instruction manual or maintenance label on the icemaker.
	Storage Bin Liner
	Water Supply Inlet	Close the icemaker water supply line shut‑off valve and drain the water
		system. Clean the water supply inlet screen.
	Condenser	Inspect. Clean if necessary by using a brush or vacuum cleaner. More
		frequent cleaning may be required depending on location.
	Water Hoses	Inspect the water hoses and clean/replace if necessary.
As Needed	Marine Model	If contaminated seawater enters the system, flush with clean seawater or
	Condenser	fresh water as soon as possible to minimize damage to the condenser.

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