Most repair-or-replace advice opens with the cost of the repair. That is the second question. The first is whether the dryer is broken at all, because the most common reason people replace a dryer in South Florida is a symptom the machine is not causing.

Start with the vent, not the dryer

A restricted duct produces exactly the symptoms people replace dryers over: long drying times, damp clothes at the end of a cycle, a machine that shuts off early, heat pouring into the laundry room. A new dryer connected to the same blocked duct does all of it again, and now the owner believes they bought a bad machine.

Before you price anything, run a cycle and put your hand at the exterior vent hood. Flow should be strong and steady enough to hold the flap open. If it is weak, the duct is the problem and the dryer may be fine. That check costs nothing, and it settles the question more often than any age rule does.

This matters more here than in most of the country. Humid air means longer cycles, longer cycles push more lint into the duct, and coastal condo buildings were built with horizontal runs of forty feet or more that in many cases have never been cleaned.

The parts that are almost always worth repairing

These are inexpensive, they fail predictably, and replacing one does not suggest the next one is coming:

• Heating element
• Thermal fuse
• Cycling and high-limit thermostats
• Thermistor
• Drive belt
• Idler pulley
• Drum rollers and glides
• Door switch and latch
• Start switch
• Gas igniter and flame sensor
• Moisture sensor

Repairs in this group typically land somewhere in the range of one to three hundred dollars nationally, parts and labor together, against a new dryer at several times that. A ten-year-old machine that needs a belt is a ten-year-old machine that needs a belt. Fix it.

The parts that change the math

The motor. Parts and labor together put this among the more expensive dryer repairs, and it is the component most likely to make an older machine not worth keeping.

The electronic control board. Boards are expensive and they fail from the same overheating a blocked vent causes. Replacing one without fixing the airflow buys you a second failure at the same price.

A seized drum or failed drum bearing. The part is not the problem, the labor is. The cabinet comes apart to reach it.

On a newer dryer, all three are still worth doing. Past roughly twelve years, each one is a real conversation rather than an automatic yes.

The fifty percent rule, and a better version of it

The common rule is that if a repair costs half of a new dryer, you replace it. It is a reasonable starting point, and nearly every appliance site repeats it.

The better version compares the repair to what your dryer originally cost, not to the price of a new base model. A repair that is poor value on a builder-grade machine you have run for nine years is obvious value on a high-end unit you bought three years ago. Consumer Reports frames the decision this way for good reason: expensive dryers stay worth repairing for longer, because the same repair is a smaller share of the machine.

A rough framework by age

Most dryers reach the end of their useful life somewhere around ten to thirteen years, though a well-maintained machine that has never been run against a clogged duct can go considerably longer.

Under 8 years: repair, in nearly every case. These machines have most of their life left.

8 to 12 years: depends on the part. Cheap mechanical and thermal failures are worth repairing. A major electronic or motor failure is a genuine decision.

Over 12 years: small repairs still make sense if the machine has otherwise been reliable. Major component failures usually point toward replacement.

Gas or electric shifts the answer

Gas dryers cost more to repair. Igniters, flame sensors and valve coils are gas-specific parts, and the work needs someone qualified to do it. They also cost more to buy and more to install, and switching fuel type adds an electrician or a gas line to the bill. All of that tends to push a gas dryer further toward repair than an electric machine of the same age.

Repeat failures are a signal, not bad luck

A thermal fuse that blows twice, or thermostats that keep tripping, is not a parts quality problem. It is the dryer overheating repeatedly, and the usual cause is restricted airflow. Fix the cause and the parts stop failing. Replace the dryer without fixing it and the new one starts down the same road.

Two things worth checking before you buy anything

Look up your model for an open recall. Manufacturers publish these, and a recalled fault is often covered for parts and labor, or for a replacement, at no cost to you. It takes two minutes and occasionally ends the conversation entirely.

Confirm the part still exists. On discontinued models a common component can be back-ordered for weeks or gone from the supply chain altogether. Worth knowing before you approve a repair rather than after.

What replacing actually involves in South Florida

The purchase price is not the whole cost, and in this market it often is not the hard part.

In condos and older coastal buildings, the dryer usually lives in a closet sized to the machine that was installed when the unit was built. Stacked and space-saving units come in narrower widths than standard, and a replacement that is an inch too wide or too deep does not go in. Buildings frequently require a delivery window, a certificate of insurance from the installer, and elevator scheduling through the association, none of which a big-box delivery slot accounts for.

Then there is the part almost nobody plans for: the new dryer connects to the same duct. If that run is packed, undersized, or built from foil or plastic hose in a concealed section, the replacement inherits the problem on day one. Whichever way the decision goes, the vent has to be right.

Older is not automatically worse

Machines built fifteen or twenty years ago tend to be mechanically simpler, with fewer electronic components to fail and cheaper parts when they do. A well-built older dryer that needs a belt and a set of rollers can be worth keeping over a newer unit with a failing control board.

What it costs to keep running a failing dryer

A dryer working against restricted airflow runs hot, and heat is what kills thermal fuses, thermostats, heating elements and control boards. Push a machine in that condition and it tends to fail again, each time for a new bill. Meanwhile every cycle runs longer than it should, on your power.

It is also the condition in which dryer fires start. Lint is the fuel, and an element cycling hotter than it was designed to is the ignition source. If you smell burning, stop using the dryer and call. That one is not a budget decision.

Reading the decision

• Weak airflow at the outside vent, clean the duct before you judge the dryer
• Under eight years old with a single clear failure, repair
• Cheap thermal or mechanical part at any age, repair
• Motor, control board or drum bearing on a machine past twelve years, lean toward replacement
• Second major failure inside a year, replace
• Repair costing more than half of what you originally paid, lean toward replacement
• Burning smell or repeated overheating, stop using it, then decide

If you are not sure which line you fall on, describe what the dryer is doing over the phone. Most of the time we can narrow it down before anyone comes out, and a proper diagnosis tells you which part failed and what it costs before you commit to anything.