With the year-end approaching, the last thing you would want affecting your business is a faulty machine! Here’s a guide on how to maintain your Hoshizaki machines effectively.
These steps apply to most models, but always check your unit’s specific manual for exact instructions.
✅ General Maintenance for all Hoshizaki machines
These routines help prolong lifespan, reduce breakdowns, and keep performance stable.
1. Keep Units Clean
- Wipe exterior surfaces regularly with mild soap and warm water.
- Avoid harsh chemicals like bleach or abrasive pads.
2. Maintain Proper Airflow
- Ensure the unit has adequate clearance on all sides (follow manual’s minimum spacing).
- Keep surrounding areas free from dust, boxes, or clutter that may restrict ventilation.
3. Clean Air Filters
- Hoshizaki units have a removable air filter on the front or side.
- Wash with warm water and mild detergent every 2–4 weeks depending on environment.
4. Check Power & Electrical Safety
- Ensure the unit is plugged into a dedicated outlet with proper voltage.
- Never use extension cords.
5. Inspect Door Gaskets
- Look for cracks, tears, or gaps.
- Clean gaskets weekly with warm water.
- Replace if loose or damaged.
6. Schedule Professional Service
- A certified technician should inspect the refrigeration system annually (or more often in busy restaurants).
🧊 Maintenance for Hoshizaki Refrigerators / Freezers
Hoshizaki reach-ins and undercounters require regular maintenance to maintain stable temperatures.
Weekly
- Clean door gaskets
- Check optimal temperature (refrigerator 1–4°C; freezer −23 to −18°C)
Monthly
- Clean condenser air filter
(critical for keeping temperatures stable and reducing energy use) - Wipe down interior surfaces.
Every 3 Months
- Clean condenser coil
- Vacuum or brush off dust and grease.
- For greasy kitchens, coils may need monthly cleaning.
- Check door alignment & hinges
- Ensure doors close firmly and seals are tight.
Every 6–12 Months
- Inspect for:
- Refrigerant line issues
- Ice/frost buildup
- Fan motor performance
- Drain lines (clear any blockages)
❄️ Maintenance for Hoshizaki Ice Machines
Ice machines require more maintenance due to water scaling, biofilm, and mineral buildup.
Daily / Weekly
1. Clean Exterior
- Wipe stainless steel with warm water.
- Avoid corrosive cleaners.
2. Check Ice Quality
- Ice should be clear and properly shaped.
- Cloudy, thin, or small cubes indicate scaling or low water flow.
3. Check for Error Codes
- Most Hoshizaki models have indicator lights or alarms.
Monthly
1. Clean Air Filter (if air-cooled model)
- Rinse and dry before reinstalling.
2. Check Water Supply
- Ensure no kinks in tubing.
- Confirm water pressure is within recommended range.
Every 6 Months (or as needed)
1. Perform Internal Cleaning & Descaling
General steps:
- Turn off the ice machine.
- Remove ice from the bin/ice storage.
- Start the cleaning cycle.
- Add scale remover to the reservoir when instructed.
- Allow machine to circulate the solution.
- Rinse thoroughly by running the rinse cycle 2–3 times.
2. Sanitize the Machine
- Use a food-safe sanitizer.
- Sanitize all water-contact surfaces.
3. Clean the Ice Bin
- Wash with warm soapy water.
- Rinse and sanitize.
Annually
- Have a technician inspect:
- Water inlet valve
- Evaporator plate condition
- Pump performance
- Refrigerant levels
- Sensors & float switches
- Bin thermostat and harvest cycle
⚠️ Common Symptoms & Solutions
| Problem | Likely Cause | Fix |
|---|---|---|
| Ice too small / soft | Scale buildup, low water flow | Clean and descale machine |
| Slow ice production | Dirty condenser, hot environment | Clean coil, improve ventilation |
| Machine stops | Float switch clogged | Clean water system |
| Ice melting in bin | Faulty bin thermostat or warm air leaks | Replace thermostat, check gaskets |
HOSHIZAKI SINGAPORE PTE LTD
Tel:+65 6225 5112 (Service Hotline)
Email: serviceadmin@hoshizaki.com.sg
Operating hours: Monday – Friday, 0830hrs – 1730hr
