Fridge Not Cooling Properly?

Why Is My Commercial Fridge Not Cooling Properly?

If your commercial fridge is not cooling properly, it can be a serious concern. However, before assuming the unit is faulty or needs replacing, there are several simple checks you can carry out first.

In many cases, cooling issues are caused by minor problems such as airflow restrictions, dirt build up, or incorrect settings. Taking a few minutes to check these can often save time, money, and unnecessary stress.

In this guide, we run through the most common causes and what you can do to get your fridge working properly again.

Check the Thermostat Settings

Start by checking that the thermostat is set correctly.

It may sound obvious, but settings can sometimes be changed accidentally during cleaning or daily use. Make sure the temperature is set within the correct range, typically between 2°C and 5°C.

If the temperature does not respond to adjustments, the thermostat itself may be faulty and require attention.

Poor Airflow Around the Unit

Commercial fridges need proper airflow to remove heat effectively.

If the unit is positioned too close to walls or other equipment, heat cannot escape, which reduces cooling performance. This is especially common in tight kitchen spaces.

Ensure there is enough clearance around the fridge, particularly at the back and sides, to allow proper ventilation.

Dirty Condenser Coils

One of the most common and overlooked causes of poor cooling is dirty condenser coils.

The condenser coils are usually located at the back of the fridge or underneath the unit, often behind a removable panel or grille. Their job is to release heat from the system so the fridge can cool efficiently.

Over time, dust, grease, and debris build up on the coils, reducing their ability to release heat. This causes the fridge to work harder and can lead to poor cooling performance.

Cleaning the coils with a brush or vacuum on a regular basis can make a noticeable difference and help prevent more serious issues.

Overloading the Fridge

Overfilling a fridge can block airflow inside the unit.

When items are packed too tightly, cold air cannot circulate properly, leading to uneven temperatures and reduced cooling efficiency.

Try to leave space between items where possible, allowing air to move freely throughout the cabinet.

Door Seals and Gaskets

Door seals play a critical role in maintaining temperature.

If seals are damaged, worn, or not closing properly, warm air can enter the fridge, making it difficult to maintain the correct temperature.

It is also important to check for dirt and grease build up on the seals. Even if the seal is not damaged, grime can prevent it from closing tightly.

Wipe seals down regularly and check for any gaps or cracks. Replacing a faulty gasket is a simple and cost effective fix that can significantly improve performance.

Frequent Door Opening

In busy kitchens, fridge doors are often opened regularly. While this is sometimes unavoidable, excessive opening can cause temperature fluctuations.

Encouraging staff to minimise unnecessary opening and to close doors properly can help maintain consistent cooling.

Faulty Components

If you have checked all of the above and the fridge is still not cooling properly, there may be a fault with internal components such as:

• Compressor
• Fan motor
• Thermostat

At this stage, professional servicing may be required to diagnose and resolve the issue.

When to Replace Your Fridge

If your fridge continues to struggle with cooling despite cleaning and maintenance, it may be more cost effective to replace the unit.

Older equipment can become inefficient over time, leading to higher running costs and unreliable performance.

A Note on Warranty

Many commercial refrigeration units, including ours, come with a one year parts warranty.

If a faulty component is identified within this period, it may be possible to replace the part rather than the entire unit. This can save both time and cost compared to a full replacement.

Conclusion

A commercial fridge not cooling properly is often caused by simple issues such as airflow restrictions, dirty components, or incorrect settings.

By carrying out a few basic checks first, you can often resolve the problem quickly without needing to replace the unit.

Regular maintenance will also help keep your fridge running efficiently and reduce the risk of future issues.

Need Help Replacing Your Fridge?

If your fridge is no longer performing as it should, Kings Catering Equipment can help you find a reliable replacement.

Browse our range of commercial refrigeration or contact us for advice on choosing the right unit for your business.