How to Troubleshoot 6 Common Commercial Refrigerator Problems

Running a restaurant, grocery store, or any business that relies on a commercial refrigerator is no walk in the park. One minute your fridge is humming along, keeping everything perfectly chilled, and the next, it's acting up. And when a commercial fridge goes down, it's not just an inconvenience; it can mean spoiled inventory, lost revenue, and a serious headache.

Don't panic! While some issues definitely call for professional help, many common problems can be tackled with a bit of know-how. Here are some tips on troubleshooting some of the most frequent commercial refrigerator woes.

If you need high-quality replacements, call Canadian Commercial Appliance at 1-800-393-0120.

6 Common Commercial Refrigerator Problems You Can Troubleshoot

1. The Fridge Isn't Cooling Properly

This is the king of commercial fridge problems. If your fridge isn't maintaining the right temperature, it's time to investigate.

• Check the Thermostat: First things first, ensure your thermostat is set to the correct temperature. Sometimes, it's as simple as someone accidentally bumping it.

• Inspect the Condenser Coils: These coils are responsible for releasing heat. If they're covered in dust or grime, they can't do their job effectively. Locate the coils (usually at the back or bottom of the unit) and clean them with a soft brush or vacuum.

• Examine the Door Seals: Leaky seals let warm air in and cold air out. Run your hand along the seals to check for any tears or gaps. If they're damaged, you'll need to replace them.

• Airflow Obstruction: Make sure nothing is blocking the vents inside the fridge. Overstocking or improper placement of items can restrict airflow, leading to uneven cooling.

• Evaporator Fan Issues: The evaporator fan circulates cold air inside the fridge. If it's not working, the fridge won't cool properly. Listen for the fan running. If you don't hear anything, the fan motor might be faulty.

2. The Fridge is Leaking Water

Water pooling around your commercial fridge is a sign of a potential problem.

• Clogged Drain Line: Condensation from the evaporator coil drains through a tube. If this tube gets clogged with debris, water can back up and leak. Locate the drain line (usually at the back of the fridge) and clear any obstructions.

• Frozen Evaporator Coil: If the evaporator coil freezes, it can prevent proper drainage. Check for ice buildup on the coil. If you see ice, defrost the fridge and investigate why the coil is freezing (possibly a faulty defrost timer or thermostat).

• Damaged Water Line (If Applicable): If your fridge has a water dispenser or ice maker, check the water line for leaks or damage.

3. The Fridge is Making Strange Noises

A commercial fridge should hum quietly. If you hear unusual noises, it's time to investigate.

• Fan Motor Problems: A noisy fan motor can indicate a problem with the bearings or the motor itself.

• Compressor Issues: The compressor is the heart of the fridge. Unusual noises from the compressor can signal a serious problem. If you hear grinding or rattling, it's best to call a technician.

• Loose Components: Sometimes, loose components can vibrate and cause noise. Check for any loose screws or panels.

4. The Fridge is Running Constantly

If your fridge is running non-stop, it's wasting energy and putting unnecessary strain on the components.

• Dirty Condenser Coils: As mentioned earlier, dirty coils can cause the fridge to work harder, leading to continuous running.

• Door Seal Problems: Leaky seals force the fridge to run longer to maintain the desired temperature.

• High Ambient Temperature: If the room where the fridge is located is too hot, the fridge will have to work harder to cool.

• Faulty Thermostat: A malfunctioning thermostat might not be accurately sensing the temperature, causing the fridge to run continuously.

5. The Fridge is Freezing Food (When it Shouldn't)

A commercial fridge should maintain a consistent temperature above freezing. If your food is freezing, there's a problem.

• Thermostat Issues: A faulty thermostat might be sending incorrect readings, causing the fridge to over-cool.

• Airflow Problems: If cold air is being directed directly onto food items, it can cause them to freeze. Rearrange the items to ensure proper airflow.

• Damaged Door Seal: A bad door seal can cause the fridge to overcompensate and freeze items.

6. The Fridge is Cycling On and Off Frequently

Frequent cycling can indicate a problem with the compressor or the thermostat.

• Compressor Issues: A failing compressor might struggle to maintain the desired temperature, leading to frequent cycling.

• Thermostat Problems: A faulty thermostat might be sending incorrect signals, causing the fridge to cycle on and off more often than necessary.

• Low Refrigerant: Low refrigerant can cause the compressor to work harder and cycle more frequently.

When to Call a Professional

While many problems can be tackled with DIY troubleshooting, some issues require professional help.

• Refrigerant Leaks

Refrigerant is a hazardous substance, and handling it requires specialized training and certification. Attempting to fix a leak yourself poses serious health risks and can damage your equipment.

• Ice Buildup Inside the Unit (Beyond a Light Frost)

While a little frost is normal, excessive ice buildup can indicate a serious problem with the defrost system, the door seals, or the evaporator coil. If you find yourself constantly defrosting the unit, it’s best to get a technician involved.

• Compressor Problems

The compressor is the core of your fridge, and its repair involves intricate knowledge and tools. Incorrect handling can lead to further damage and costly replacements.

• Electrical Issues

If you suspect an electrical problem, it's best to call a qualified electrician or appliance technician. Faulty wiring or electrical components can be dangerous and should only be addressed by qualified electricians or appliance technicians.

• Unusual Smells

While a dirty fridge can lead to food odors, certain smells can indicate more serious problems. A burning smell, for instance, could point to an electrical issue or a failing motor. A strong chemical smell might indicate a refrigerant leak. These are definite red flags that require immediate professional attention.

• Persistent Issues After Troubleshooting

You've cleaned the coils, checked the seals, adjusted the thermostat, and still, the fridge isn't performing correctly. If you've exhausted your troubleshooting steps and the problem lingers, it's a clear sign that a professional is needed. They have the tools and expertise to diagnose and fix underlying issues that might be beyond your knowledge.

Finding Reliable Replacements

If you're in Canada and need top-notch commercial refrigerators and accessories to replaceold or malfunctioning ones, consider reaching out to Canadian Commercial Appliance. We specialize in providing commercial refrigerator solutions and have a wide selection of commercial fridge units you can choose from.

Don't let a malfunctioning commercial fridge disrupt your business. Contact Canadian Commercial Appliance at 1-800-393-0120 for your commercial refrigeration needs.

Preventive Maintenance is Key

The best way to avoid commercial fridge problems is to perform regular preventive maintenance.

• Clean the Condenser Coils Regularly

Dirty coils are a leading cause of fridge problems.

• Inspect and Clean Door Seals

Ensure the seals are in good condition and free from debris.

• Check the Thermostat

Verify that the thermostat is set to the correct temperature.

• Clean the Interior Regularly

Remove any spills or debris that could cause odors or block airflow.

By following these troubleshooting tips and performing regular maintenance, you can keep your commercial fridge running smoothly and avoid costly downtime. Remember, when in doubt, it's always best to call a professional.

Need a new commercial fridge or freezer? Visit Canadian Commercial Appliance or call 1-800-393-0120 today!