Comprehensive Maintenance Guide for Cooluma Countertop Food Display Cabinets

Countertop food display cabinets are used for storing and displaying foods such as cakes, desserts, and coffee. They usually adopt glass material to enhance the visual effect of the equipment. In terms of functionality, the temperature control (usually 2-8℃) inhibits bacterial reproduction and extends the shelf life of food. The closed design reduces the risk of cross-contamination and complies with food safety regulations. Of course, mastering the maintenance principles is also very important.

I. General Maintenance Principles for Countertop Display Cabinets

1. Cleaning Guidelines

- Prohibited Items: Steel wool pads, alkaline cleaners, alcohol, boiling water, oil-based solvents

- Recommended Items: Neutral detergent (e.g., diluted dishwashing liquid), soft cloth, sponge, glass cleaner

- Procedure: Disconnect power → Wipe exterior → Clean interior → Disinfect → Dry → Reconnect power

2. Operational Maintenance

- Avoid frequent power cycling (compressor has 2-minute delay protection)

- Ensure adequate ventilation: ≥10cm clearance from wall at rear, sufficient space above

- Regularly check voltage (recommended range: 187-242V; use voltage stabilizer during fluctuations)

II. Specific Maintenance Guidelines for Various Display Cabinets (Using Cooluma Brand as Example)

1. Cake Refrigerator

Temperature Management:

- Set to 2-8°C (36-46°F) with humidity controlled at 50%-70% to prevent cakes from drying out or becoming damp

- Allow new cakes to cool completely before placing them inside to avoid condensation affecting decorations

Special Care:

- Store decorated cakes in sealed containers or loosely covered with plastic wrap to prevent direct contact with cabinet walls

- Regularly check defrost function (manual defrost required when evaporator frost ≥5mm)

- Unplug during extended storage; thoroughly clean, dry, and seal before storage

2. Dessert Display Cabinet

Storage Tips:

- Store different desserts in separate zones to prevent flavor transfer (advantage of multi-tiered shelf design)

- Store cheese products separately in airtight containers

Cleaning Focus:

- Thoroughly clean interior shelves at least once weekly to prevent sticky residue like syrup buildup

- Regularly sanitize with food-grade disinfectant to eliminate lingering odors

3. Cooked Food Heating Display Cabinet

Temperature Control:

- Set between 60-85°C (adjust based on food type) to ensure food safety

- Regularly calibrate the thermostat to prevent excessive temperature fluctuations

Maintenance Guidelines:

- Use stainless steel-specific cleaners to prevent corrosion of heating elements

- Exercise extreme caution around heating elements and temperature probes during cleaning to avoid damage

- Inspect heating element connections for looseness and tighten promptly

4. Coffee Cabinet

Cleaning Protocol:

- Daily removal of coffee stains to prevent penetration into cabinet structure (use neutral cleaner + soft cloth)

- Regular inspection of lighting system to ensure optimal display effect

Special Maintenance:

- Regularly clean and sanitize coffee grounds containers to prevent mold growth

- If also used for refrigeration, maintain per refrigerator standards; if solely for display, keep interior dry

5. Ice Cream Cabinet

Temperature Management:

- Set freezer display cabinets below -18°C to maintain ice cream hardness

- Regularly inspect refrigeration systems to prevent temperature fluctuations causing ice cream to melt and refreeze

Cleaning Procedure:

- Disconnect power before cleaning; wait until interior temperature rises to near room temperature before proceeding

- Thoroughly clean interior with warm water + neutral detergent, paying special attention to hard-to-reach areas like paddle connections

- All components must be completely dry after cleaning to prevent ice damage

- Ensure door gaskets are dry before restarting to avoid sticking

III. Cooluma Display Cabinet Maintenance Schedule

Daily Maintenance

Weekly Maintenance

Monthly Maintenance

Quarterly Maintenance

Semi-Annual Maintenance

IV. Long-Term Deactivation and Restart Guide

Deactivation Steps:

1. Shut down the refrigeration system 24 hours in advance and remove all food items

2. Thoroughly clean all interior and exterior surfaces, disinfect, and ensure complete drying

3. Unplug the power cord and leave the door slightly open (to prevent odors and mold)

4. For long-term storage, cover with a dust cover and avoid direct sunlight

Restart Procedure:

1. Clean the exterior and inspect for damage

2. Verify voltage stability before powering on

3. Run empty for 1-2 hours. Only place food inside after confirming normal cooling/heating

4. Add food gradually to avoid disrupting temperature stability

V. Maintenance Precautions Summary

✓ Mandatory Tasks:

- Disconnect power before cleaning to ensure personal safety

- Use mild detergents to protect cabinet materials

- Regularly inspect and maintain door seals (critical for energy efficiency)

- Record each maintenance date to establish a maintenance log

✗ Prohibited Actions:

- Avoid using sharp tools for cleaning to prevent scratching glass and cabinet surfaces

- Do not use strong alkaline/acidic cleaners, as they corrode materials

- Never block ventilation openings, as this causes overheating and equipment damage

- Frequent power cycling shortens compressor lifespan

⭐ Practical Tips:

- Glass Cleaning: Spray a small amount of glass cleaner onto a soft cloth; avoid direct spraying on glass (to prevent liquid seepage)

- Odor Control: Place activated charcoal packets or lemon slices inside the cabinet; replace regularly to maintain fresh air

Adhering to the principle of “Clean, Stabilize, Inspect, Maintain” and following the above schedule for regular upkeep will not only extend the lifespan of your Cooluma display cabinet but also ensure food safety and enhance presentation quality. Remember: Good maintenance habits are more economical and reliable than repairs after breakdowns! We recommend posting this schedule near the equipment for daily reference, keeping your display cabinet in optimal condition at all times.