Common Issues and Solutions for Commercial Refrigerators

Commercial refrigerators are widely used appliances, and like any electrical device, they may encounter some faults during usage. Common problems include no cooling, poor cooling, unpleasant odors, food freezing, and loud noise. It is important to identify the cause of the fault for self-repair or to contact a service technician for repairs. If the compressor or other components inside the commercial refrigerator display cabinet are damaged, disassembly may be required for repair. Disassembling a display cabinet is not difficult if done in the correct order. Let's take a look at common issues and repair methods for display cabinets.

Common Issues and Solutions for Commercial Refrigerators

A commercial refrigerator, also known as a refrigerated display cabinet, is used in commercial settings. It provides both refrigeration and product display functions and is commonly found in places like malls, supermarkets, and delis. As an electrical appliance, a commercial refrigerator may encounter various faults during usage. Common issues include:

1. Commercial Refrigerator Not Cooling at All

   • The refrigerator's power plug is not properly connected to the power outlet.
   • The power outlet has no electricity.
   • There is a power outage.
   • The fuse or circuit breaker is disconnected.

   Check each item, identify the fault, and resolve it or contact a professional technician for assistance.

2. Commercial Refrigerator with Poor Cooling

   • The thermostat setting is too high.
   • Too much food is stored, or hot food has been placed inside.
   • The door is opened frequently, or the door seal is not tight.
   • The refrigerator is exposed to direct sunlight or placed near a heat source.
   • Poor ventilation around the refrigerator.

3. Commercial Refrigerator with Unpleasant Odors

   • Strong-smelling foods are not properly wrapped.
   • The commercial refrigerator has not been cleaned for a long time.

4. Food Freezing in the Refrigerator Compartment

   • The refrigerator compartment temperature is set too low; adjust the thermostat knob to a suitable position.
   • The surrounding temperature is below 5°C; increase the temperature setting.
   • Moisture-rich foods are placed deep inside the shelf; they should be moved.

5. Commercial Refrigerator with Loud Noise

   • The ground is not firm and level.
   • The commercial refrigerator is not placed stably.
   • The display cabinet is too close to the wall.
   • The display cabinet is in contact with objects prone to vibration.

When a fault occurs in a refrigerated display cabinet, transfer goods to another refrigerator to prevent loss if possible. Then promptly communicate with the manufacturer's customer service to arrange for repair service.

How to Disassemble a Display Cabinet for Repair

If a display cabinet is faulty, disassembly might be necessary for repair. It is not recommended for non-professionals to attempt disassembly. However, if you have the necessary repair knowledge, you can disassemble it as follows:

1. First, open the doors of the freezer and refrigerator compartments. Then, rotate the three screws on the front cover of the foot counterclockwise and remove the front cover.

2. Unscrew the clamp screws, hold the pipe joint, and pull out the water pipe to remove it.

3. Remove the upper hinge cover and lift away the upper hinge cover, then remove the wiring.

4. Rotate the hinge screws and ground screws, remove them, and detach the upper hinge following the arrow direction. Be cautious to prevent the freezer door from sliding off during removal.

5. Carefully lift the door off, removing it from the lower hinge. Lift the lower hinge off the lower hinge bracket following the arrow direction to remove it.