Commercial Fridge Noises Explained: How to Diagnose & Prevent Breakdowns

If you’ve recently searched for “fridge making strange noise” or “commercial fridge buzzing,” it’s time to stop Googling and start troubleshooting before your kitchen fridge breaks down.

In a busy commercial kitchen, unusual noises from your fridge are often overlooked, but these sounds can be early warning signs of fridge problems. Ensuring staff safety and food quality means knowing when to troubleshoot yourself and when to call a professional fridge repair engineer.

1. Buzzing or Humming Noise
Possible Cause: Dirty condenser coils
What to Do: Unplug the fridge and carefully clean the condenser coils. Dust and debris reduce efficiency and put strain on your fridge compressor. Regularly cleaning condenser coils helps prevent costly fridge breakdowns in busy kitchens.

2. Rattling or Clanking Sounds
Possible Cause: Loose fan blade, motor issues, or foreign objects inside the fridge
What to Do: Stop troubleshooting and call a qualified commercial fridge engineer. Handling internal parts like fan blades without proper training risks staff injury and further damage.

3. Screeching or High-Pitched Noise
Possible Cause: Failed evaporator fan or motor
What to Do: Contact a professional fridge repair technician. The evaporator fan may need servicing or replacement. Also, regularly check the evaporator coil for frost build-up or blockages to avoid this issue.

• Temperature isn’t holding steady and fluctuates

• Strange noises persist or worsen over time

• Significant ice or frost build-up inside the fridge

• You’re unsure about the cause and want to avoid safety risks

Ignoring these signs can lead to expensive fridge repairs or even complete equipment failure, disrupting your kitchen operations.

Door gaskets (the rubber seals around your fridge doors) play a crucial role in keeping cold air inside and warm air out. Over time, food debris, grease, and mold can build up on the seals, causing air leaks and hygiene concerns.

Maintenance Tip: Clean door gaskets weekly with warm, soapy water or a mild disinfectant. Pay close attention to folds where grime can hide, and regularly inspect for cracks or tears. Proper gasket care ensures consistent fridge temperature and reduces energy costs.

For restaurant owners and chefs, consistent kitchen equipment performance is critical. Scheduling regular fridge servicing every 6 to 12 months helps spot early wear and tear, clean hard-to-reach parts, and complete small repairs before they turn into major problems.

Routine professional fridge maintenance not only improves food safety and energy efficiency but also extends the lifespan of your commercial fridge, saving you money, stress, and downtime. Our service and maintenance team is always on hand to support you, whether it's routine servicing or urgent repairs. You can explore our full range of support options here.

If you’re experiencing any issues or just want to book in your next scheduled service, give us a call on 0161 684 7879 and speak directly to a member of the team.