When a dryer starts needing two or three cycles to finish a load, the cause is often airflow rather than the machine itself. Lint builds up in the vent line over time, which makes the dryer work harder, wears out parts sooner and can create a fire hazard.

Beyond vent problems, dryers commonly need repairs to heating elements, gas igniters, thermal fuses, drum belts, rollers and idler pulleys. A squealing or thumping sound usually points to worn belts or rollers, while a drum that spins but stays cold often means a heating part or fuse has failed. Many of these parts are relatively affordable, though labor adds to the bill.

Clean the lint screen after every load and have the full vent run cleaned periodically, especially if it's long or has several bends. If you have a gas dryer, leave any gas line work to a qualified professional. Catching a clogged vent early can help the dryer last longer and keep your home safer.