A refrigerator is the one appliance nobody wants to lose power to, so when it starts tripping a breaker or a GFCI, the clock starts on the food. The cause is usually one of three things: a part inside the refrigerator, the circuit it shares with other appliances, or the GFCI protecting a garage or a kitchen outlet. Here is how to tell which, and how to keep food safe in the meantime.
Keep the food safe first
The USDA's guidance on keeping food safe during power outages says a refrigerator keeps food cold for about 4 hours if it stays closed, and a full freezer holds its temperature for about 48 hours (24 hours if half full) with the door closed. Keep the doors shut, move essentials to a cooler with ice if it will be longer, and use an appliance thermometer: food at 40 degrees F or below is safe. Medicines that need refrigeration should go to a working fridge or a cooler right away.
If the circuit is the problem and the refrigerator is not, plugging it into an outlet on a different, working circuit is a reasonable stopgap. Plug it straight into the wall if the cord reaches. If you have to use a cord, use a heavy-duty one sized for the appliance, never a power strip, and never across a wet floor. Check the refrigerator's manual first.
Why a refrigerator trips a circuit
- The defrost heater. Most frost-free refrigerators and freezers switch on a heater by themselves every several hours to melt frost off the coil. A cracked heater, or melt water reaching its wiring, leaks current. Because the heater runs on its own schedule, this is a classic cause of trips at odd hours; see breakers that trip at night.
- The compressor or its start parts. A failing start relay, overload or compressor draws heavy current or leaks to the frame.
- Fan motors. The condenser fan under the fridge collects dust and pet hair and can fail.
- The ice maker and water line. A leaking valve or line drips near wiring at the back of the unit.
- A pinched cord or worn outlet. Pushing the refrigerator back against the wall can crush the cord. An outlet that no longer grips the plug firmly heats up; see outlets warm to the touch.
Garage freezers and GFCIs
Garage receptacles at a dwelling have required GFCI protection for many years, and the 2020 code keeps garages on its list of GFCI locations (Leviton, NEC 2020 changes). Older homes may also have the freezer outlet downstream of a GFCI in the garage or outside. In a humid Miami garage, an older freezer with a slightly leaky defrost heater, condensation in the outlet box, or an aging GFCI can add up to a trip. The usual result is a week's groceries lost before anyone opens the freezer.
The answer is not to replace the GFCI with an ordinary outlet. Its job is to protect people in a space with a concrete floor and water. The fix is to find what is leaking current, replace a worn GFCI, and if the freezer shares the circuit with tools, a washer or a dehumidifier, consider giving it its own circuit. That still needs GFCI protection in a garage, but it stops other loads from adding to the problem. See when an appliance needs its own circuit.
In the kitchen, whether the refrigerator outlet needs GFCI protection depends on where it is and when the house was wired. The 2023 code expands kitchen GFCI rules; our guide to GFCI and AFCI requirements in Florida covers what applies today.
Narrow it down safely
- Reset once. If the breaker or GFCI holds, note the time. If it trips again within minutes, leave it off. See breakers that trip again on reset.
- Unplug the refrigerator and reset. If the circuit now holds with the refrigerator unplugged, the fridge is the likely source, or an overload with it running.
- Try the fridge on another circuit. If it trips that circuit too, it is the appliance. Our guide is it the appliance or the circuit? walks through this test.
- Look behind and under it for water, a crushed cord or a scorched plug.
- Note what else runs on the circuit: a microwave, toaster oven or kettle in the kitchen, or tools and a washer in the garage.
Who to call
A refrigerator that trips any circuit it is plugged into needs an appliance repair technician: the defrost heater, compressor, fans and ice maker are their work. A circuit that trips with the fridge unplugged, a burned outlet, or a GFCI that trips with nothing on it is ours. Our guide to appliance tech, HVAC tech or electrician covers the gray areas.
What we check
We test the GFCI or breaker, measure what the refrigerator and everything else on the circuit draw, and check the outlet and its connections. If the circuit is shared with too much, we explain the options, including a separate circuit. See outlet and GFCI repair.
Questions people ask
My new refrigerator trips the GFCI right away. Is it the fridge?
It can be, but a worn GFCI, a wet box or another fault downstream are just as likely. Try the refrigerator on a different GFCI-protected outlet. If it holds there, the original GFCI or its circuit needs a look.
Does turning off the ice maker help?
Only if the leak is in the ice maker or its water valve. It is worth trying as a short-term step while you wait for a repair.
Is it safe to keep resetting it so the food stays cold?
No. Each reset puts the fault back on the circuit. Move the food and get it checked.
Need it looked at?
KRW Electric (EC13012832) troubleshoots and repairs refrigerator and freezer circuits that keep tripping in Pinecrest, Coconut Grove, South Miami and Miami Beach, with same-day service when scheduling permits. Call (305) 359-7312 and tell us what you are seeing. We will ask a few questions, tell you whether it sounds urgent, and give you the earliest time we have. Our before you call checklist covers what to have ready, and what happens on a repair visit explains the rest.
Reviewed by Kyle White, KRW Electric Company LLC — licensed electrical contractor EC13012832.
