Your Fridge Never Stops Running in Late Summer — Normal or Dying?

Late August in SE Broward is when people start standing in their kitchens, listening. The refrigerator that used to hum politely and then go quiet now seems to run all afternoon, all evening, possibly all night. Somewhere between Hollywood Lakes and the Aventura towers, the same question gets asked a hundred times a week: is this thing dying, or just busy?

The honest answer is “it depends” — but it depends on things you can actually check. Here’s how a refrigerator is supposed to behave in real South Florida heat, where the line between hardworking and failing actually sits, and what to look at before you pick up the phone.

How a refrigerator is supposed to cycle

A refrigerator is not designed to run continuously the way a freezer at a fish market does. The compressor kicks on, pulls the cabinet down to temperature, and shuts off. The fraction of time it spends running is called the duty cycle, and in mild conditions a healthy machine might run half the time or less.

Two things complicate that picture. First, the duty cycle is supposed to stretch when conditions get harder — more heat in the kitchen means more heat to pump out, which means longer run times. That’s the machine doing its job, not failing at it. Second, many newer refrigerators use inverter (variable-speed) compressors that deliberately run almost constantly at low speed, because steady low-power operation is more efficient and easier on parts than stop-start cycling. If your fridge is less than eight or so years old and runs quietly all the time, that may simply be its personality.

Why late August is the hardest month of the year

August in Hallandale Beach is the refrigeration equivalent of towing a trailer uphill. The kitchen itself is warmer, so the condenser has a harder time dumping heat. The household is opening the door more — kids home, cold drinks in rotation, somebody standing in front of the open fridge “deciding.”

The part people miss is humidity. Every time the door opens, humid air rushes in, and all that water vapor has to be condensed and frozen out on the evaporator coil. That’s a real thermal load, and it’s also why frost management systems work harder in summer. A fridge in a west-facing condo kitchen on the Collins corridor, in August, with a family in residence, can legitimately run 80 to 90 percent of the time and be perfectly healthy.

So a long duty cycle alone proves nothing. What matters is whether the machine is holding temperature while it does it.

The line between “working hard” and “failing”

Four failure modes account for most of the runs-constantly-and-struggles calls we see, and they’re worth knowing in order of likelihood.

Dirty condenser coil. The coil under or behind the fridge sheds the heat the compressor pumps out. Coat it in dust and pet hair and the machine loses capacity exactly when August demands more of it. This is the most common culprit and the cheapest fix.

Worn door gaskets. A gasket that’s hardened, torn, or simply not sealing lets humid air leak in continuously — like leaving the door cracked all day. Look for condensation or frost near the gasket line; in salt-humid coastal buildings, gaskets age faster than inland.

A failing evaporator fan. The cold is made in the freezer section and moved by a fan. If that fan slows or ices up, the compressor runs and runs while the fresh-food section drifts warm. A freezer that’s fine paired with a fridge section that isn’t is the classic signature.

Sealed-system problems. Low refrigerant or a weak compressor means the machine physically can’t move enough heat anymore, so it runs forever and still loses ground. This is the serious one, the one where temperatures creep upward day by day, and it’s a technician’s diagnosis — there’s no homeowner fix.

About those warm cabinet sides

A regular theme in our calls: someone touches the side of the refrigerator, finds it warm, and assumes the worst. Most of the time, warm sides are by design. Many manufacturers route condenser tubing through the cabinet walls, partly to shed heat and partly to prevent condensation on the exterior in humid climates — which describes every kitchen from Dania Beach to North Miami Beach.

Warm sides plus cold food is normal operation. Hot sides plus food that isn’t staying cold is a machine losing the fight, and that combination is worth a service call.

The electric bill angle

Here’s a practical reason not to shrug at a fridge that runs nonstop: it’s one of the few appliances that operates 24 hours a day, so its efficiency problems compound. A refrigerator fighting a dirty coil or leaky gaskets can draw noticeably more energy month after month, and in a seasonal unit left running through summer, that’s money spent cooling groceries that aren’t even there. If your FPL bill jumped and nothing else changed, the oldest refrigerator in the unit is a fair suspect.

The 15-minute check before you call anyone

1. Measure, don’t guess. Put a thermometer in a glass of water in the fridge overnight: you want roughly 37–40°F. Freezer should sit around 0°F. If both are on target, the long run time is probably just August.
2. Do the dollar-bill test. Close a bill in the door gasket and pull. If it slides out with no resistance, repeat around the perimeter — a free-sliding section means a leak.
3. Look at the coil. If the condenser is accessible at the base grille or rear panel and looks like a lint trap, it needs cleaning. Unplug the unit before touching anything.
4. Check the breathing room. A fridge shoved tight against the wall or boxed into cabinetry can’t reject heat. An inch or two of clearance matters more in August than any other month.
5. Listen for the fans. With the door closed, you should hear gentle airflow. Silence, grinding, or chirping from the freezer side points at a fan problem.

If the temperatures check out, relax — your refrigerator is just earning its keep in the worst month South Florida can throw at it. If they don’t, or if the freezer is fine while the fridge drifts warm, that’s a diagnosis worth making before the long Labor Day grocery run, not after. Our refrigerator repair team handles exactly this triage all August long, from Hollywood down through Sunny Isles Beach.

Norma Appliance Repair is based in Hallandale Beach and runs service calls 7 days a week across SE Broward and north Miami-Dade — every repair backed by a 90-day warranty. The visit is a $59 diagnostic — free if you approve the repair. Call (954) 775-8660 and we’ll tell you honestly whether your fridge is dying or just sweating through August like the rest of us.