Dryers are mechanically simple: a motor turns a drum, a heat source warms the air, a blower pushes it out through a vent, and a few sensors and switches keep it all honest. That simplicity is good news. Most dryer failures are single, inexpensive parts, and a dryer is one of the appliances most often worth repairing well into its life.
The exceptions matter, though, and so does safety. A dryer that is not drying may have a blocked vent rather than a broken part, and a blocked vent is a fire risk that the U.S. Consumer Product Safety Commission and the U.S. Fire Administration both flag as a leading cause of dryer fires. Sorting that out comes before any repair-or-replace decision. This article covers how long dryers usually last, what is worth fixing, what usually is not, and what to expect from a technician.
Typical service life
Manufacturers do not publish a service life for dryers, and the estimates you see online are just that. In practice a dryer with few electronics and a simple heating element or gas burner tends to outlast the washer next to it, because there is less to go wrong and the parts that do fail are cheap.
What shortens a dryer’s life is heat it cannot get rid of. A long, lint-filled or crushed vent makes the machine run hotter and longer on every load, which wears the element, thermostats, motor and belt faster and raises the fire risk. If your dryer is aging badly, check the vent before blaming the machine. Gas and electric dryers age similarly; gas units add an igniter, flame sensor and valve coils, all routine replacements.
Repairs that are usually worth it
Nearly everything on this list is a part a technician carries or can get quickly, fitted in a single visit.
- Heating element (electric) or igniter and flame sensor (gas). The classic "drum turns but no heat" repair.
- Thermal fuse and cycling thermostats. A blown thermal fuse often means the vent is restricted, so the vent must be cleaned at the same time or the fuse will blow again.
- Drive belt. The motor runs, the drum does not. Quick and inexpensive.
- Drum rollers, idler pulley and glides. Thumping, squealing or scraping during tumbling.
- Door switch or start switch when the dryer does nothing at all.
- Blower wheel when airflow is weak and the vent is clear, or gas valve coils on a dryer that heats at first and then runs cold.
Repairs that usually are not
There are fewer deal-breakers for a dryer than for most appliances, but they exist.
- Motor failure on an older dryer when the motor is expensive for that model. Price it against a new machine; on some models it is fine, on others it is not.
- A failed main control board on an electronic model when the board is costly or no longer available.
- A drum that has cracked or a bearing seat that has worn through the rear of the drum. Some drums are replaceable, but the cost often tips the decision.
- Heavy rust or a cabinet that has been crushed or bent so the drum no longer runs true.
- Any dryer where the technician finds scorching or melted wiring inside from an overheating event. At that point the safer choice is usually a new machine and a new vent.
The fifty-percent rule of thumb
The rule of thumb is the same as for any appliance: when a repair would cost more than about half of a comparable new dryer and the machine is past the midpoint of its life, replacement usually wins. Because most dryer repairs are far below that line, you will rarely need it. Where it does apply is a motor, board or drum on an old unit, or a dryer that needs three or four worn parts at once.
If replacing means a new gas connection, a different cord and outlet, or new vent work, add those to the replacement side of the comparison.
Efficiency and rebates
Dryers use a lot of energy per load, and ENERGY STAR notes that heat pump dryers use far less than conventional models. Standard new vented dryers beat old ones mainly through moisture sensing that ends the cycle when clothes are dry; the saving for a typical household is modest. Rebates for ENERGY STAR dryers, particularly heat pump models, exist in some areas and change often, so check the ENERGY STAR rebate finder and your utility when you are ready to buy.
What a technician’s estimate should tell you
Ask for these specifics before you approve the work.
- The failed part and the test that confirmed it. A multimeter check on an element or thermal fuse takes a minute and should be part of the diagnosis.
- Whether the vent was checked, and what its condition is. A repair without fixing a blocked vent is a repeat visit waiting to happen.
- Parts and labor separately, the diagnostic fee and whether it applies to the repair, and the warranty on the work.
- Anything else wearing out, so you can decide whether to replace rollers or a belt while the machine is apart.
What to do while you decide
If the dryer is overheating, smells hot, or has tripped a breaker, unplug it and stop using it. Clean the lint screen, inspect the vent hose behind the machine for crushing or lint, and check that the outside vent flap opens while the dryer runs. If you smell gas, leave the house and call the gas utility first. Note the model and serial number, whether the drum turns, whether there is any heat, and how long a load has been taking.
Questions people ask
My dryer runs but takes two cycles to dry. Is it broken?
Often the dryer is fine and the vent is restricted. Have the vent cleaned first. If drying times stay long with a clean vent, the heating element, a thermostat or the blower may be at fault, all of which are repairable.
Is a dryer that will not heat worth fixing?
Yes, almost always. Elements, igniters, fuses and thermostats are inexpensive parts and the repair is usually done in one visit.
Should I replace the dryer because it is old?
Not on age alone. A dryer with a clean vent and no major failures can keep going. Replace when a big part fails, when repairs start to stack up, or when you want the efficiency of a heat pump model.
Can a blocked vent damage the dryer?
Yes. Restricted airflow makes the machine run hot, which wears parts faster and is the leading factor in dryer fires in federal fire data. Vent cleaning is maintenance, not an extra.
Sources
- ENERGY STAR: Clothes dryers (efficiency and heat pump models) www.energystar.gov
- U.S. CPSC: Overheated clothes dryers can cause fires www.cpsc.gov
- U.S. Fire Administration: Appliance and electrical fire safety (dryer fire causes) www.usfa.fema.gov