Refrigerator Not Cooling? Common Causes & What to Do

Serving Charleston, SC & the Lowcountry

A refrigerator that’s running but not cooling is one of the most urgent appliance problems — food safety is on the clock. Here’s what usually causes it, what you can safely check yourself, and when to call a technician.

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Likely Causes

Dirty condenser coils

Dust and pet hair insulate the coils, forcing the compressor to work harder without actually cooling. This is the most common cause we see, and coastal humidity makes coils collect grime faster.

Failing compressor start relay

The compressor clicks but doesn't start. The relay itself is inexpensive, but testing it safely requires a technician.

Refrigerant leak or low charge

This requires an EPA-certified technician to diagnose and recharge — not a DIY repair.

Faulty evaporator fan

If this fan stops, the freezer may stay cold while the fridge section warms up.

Thermostat or control board fault

An electronic fault can stop the unit from calling for cooling at all.

What You Can Safely Check Yourself

You can safely check and vacuum the condenser coils yourself — usually behind a bottom kick-plate or on the back of the unit. Unplug the fridge first. Beyond that, refrigerant and electrical diagnostics need a trained technician.

When to Call a Professional

If cleaning the coils doesn't help within a few hours, or the compressor hums without cooling, call a technician before food spoils. Daniel Appliance Repair offers same-day and next-day appointments across Charleston, SC and the surrounding Lowcountry.

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