Refrigerator Not Cooling? 7 Causes Lawrenceville Homeowners Should Check First

In Lawrenceville, a refrigerator that stops cooling in July is not a minor inconvenience — you have hours before food is at risk. Here are the seven most common causes we see across Gwinnett County, in order of likelihood, with what you can safely check yourself and when to stop and call.

1. Dirty condenser coils (DIY)

The coils under or behind the fridge dump heat into the room. Georgia pollen, pet hair and dust coat them and the compressor runs hot and long. Unplug the unit, pull it out, and vacuum the coils with a brush attachment. Do this every six months in Lawrenceville. If the fridge recovers within a few hours, you are done.

2. Blocked airflow inside (DIY)

Overpacked freezers block the vent that feeds cold air to the fresh-food section. Clear the vent, leave an inch of space at the back, and check that nothing is pressed against the air outlet.

3. Door gasket not sealing (DIY)

Close the door on a dollar bill. If it slides out with no resistance, the gasket is worn. Wipe it with warm soapy water first — grime stops it from sealing. A replacement gasket runs $80–$180 installed.

4. Evaporator fan motor failed

If the freezer is cold but the fridge is warm, and you do not hear a fan running inside the freezer when the door switch is pressed, the evaporator fan is the likely culprit. $150–$250 repair.

5. Defrost system failure

Frost built up on the back wall of the freezer means the defrost heater, timer or thermostat has failed. Ice blocks the airflow. $150–$300 repair, and it is one of the most common calls we get in downtown Lawrenceville and Sugarloaf.

6. Start relay or capacitor

Clicking every few minutes with no compressor hum points to a failed start relay. $120–$200. Quick fix, but it mimics a dead compressor, so get it diagnosed before assuming the worst.

7. Compressor or sealed system

The compressor runs constantly and hot, but nothing cools. This is the expensive one — $400–$900 — and on a unit past 10 years it usually means replacement. A technician can confirm with a gauge check in minutes.

What to do right now

Move perishables to a cooler with ice. Do not keep opening the door. If the freezer still works, move critical items there. Then run through steps 1–3. If none of them restores cooling within a few hours, call — the longer a compressor runs against a problem, the more damage it does.

Frequently asked questions

How long will food last in a refrigerator that stopped cooling?

About four hours with the door closed. A full freezer holds for 48 hours, a half-full one about 24.

Why is my freezer cold but the fridge warm?

Almost always a failed evaporator fan, a defrost problem blocking airflow, or a damper stuck closed. All are repairable for under $300.

Should I unplug a refrigerator that is not cooling?

If the compressor is running hot and constant, yes — unplug it for 30 minutes to let it cool, then restart. If it still does not cool, leave it off and call.

Is refrigerator repair in Lawrenceville same-day?

Yes. Refrigerator calls are prioritized because of food loss. Most Lawrenceville appointments are same-day or next-morning.