Dryer maintenance checklist
Updated August 2026
A dryer stays safe and quick on one habit every load, emptying the lint screen, plus a full vent-duct cleaning once a year (every 6 months if you run it hard). Add a monthly wipe of the moisture sensor and a look behind the drum, and the machine reaches its 10–13-year life without becoming the fire hazard US fire agencies tie to roughly 2,900 dryer fires a year.
| Task | Interval | Effort |
|---|---|---|
| Pull and clear the lint screen | Every load | 1 min · DIY |
| Check for stray coins, pens, or crayons | Every load | 30 sec · DIY |
| Task | Interval | Effort |
|---|---|---|
| Wipe the moisture-sensor bars inside the drum | Monthly | 2 min · DIY |
| Confirm the outdoor vent flap opens when running | Monthly | 2 min · DIY |
| Task | Interval | Effort |
|---|---|---|
| Clean the full vent duct to the exterior | 12 months (6 for heavy use) | $100–200 pro / DIY |
| Vacuum lint from behind and under the dryer | 6–12 months | 15 min · DIY |
| Brush out the lint-screen housing slot | 6–12 months | 10 min · DIY |
| Task | Interval | Effort |
|---|---|---|
| Inspect the drum belt, rollers, and glides for wear | 3–5 years | $150–300 pro |
| Replace a crushed or foil flex transition hose | As needed | $20–40 DIY |
What neglect costs
Lint is the whole problem. It clogs the screen and then packs the duct, so airflow drops, clothes come out damp, and the heater cycles harder against a hot, lint-filled cabinet. That combination is why failing to clean lint from the machine and its vent is the top ignition source behind those fires. A restricted vent also stretches a 45-minute load past an hour and pushes your energy use up for nothing. Cramming loads makes it worse: an overloaded drum traps moisture, bakes the belt and bearings, and shortens the whole machine's life.
Leave these to a pro
Two jobs are worth paying out. A long, rooftop, or second-floor vent run is awkward and sometimes unsafe to reach, so a duct-cleaning tech ($100–200, cheaper bundled with an annual vent service) earns it. And a dryer that tumbles but will not heat usually needs a heating element, thermal fuse, or thermostat, a diagnose-and-repair call of $150–350; see when that bill is worth paying versus not. Once a unit is past 10 years and the quote tops $300, weigh it against a $500–1,200 replacement instead.
This whole checklist ships as reminders in OnOtto: every task above, on the right schedule for your home, snooze-proof.
Load this checklist as remindersFrequently asked questions
Why is my dryer taking two cycles to dry a load?
Almost always restricted airflow. Start with the lint screen (clean it every load), then the vent duct, which does most of the choking. If both are clear, you may be packing the drum too full: clothes need room to tumble and let moist air out. A weak or partially failed heating element is the next suspect, especially if the drum turns but never feels hot. Damp, heavy loads straight from a washer that did not spin fully will also add a cycle.
Do I really need to vacuum behind the dryer?
Yes, once or twice a year. Lint escapes the screen, drifts past the drum seals, and settles on the motor, the heating element, and the floor behind the cabinet, where it sits inches from heat. Pull the dryer out, unplug it (or shut the gas), and vacuum the back, the floor, and the vent connection. While you are there, check that the flex transition hose is not crushed or kinked, since a pinched hose traps lint and cuts airflow just like a clogged duct.
How real is the risk of a dryer fire?
Real enough to plan around: US fire agencies attribute about 2,900 home dryer fires a year, and the single leading factor is failure to clean lint from the machine and vent. The danger climbs with the age of the vent, the length of the run, and how often you skip the screen. None of the prevention is exotic. Clean the screen every load, clear the duct on schedule, and never run the dryer overnight or while you are out of the house.
Do dryer sheets hurt the moisture sensor?
They can. Fabric-softener sheets leave a thin waxy film on the two metal moisture-sensor bars inside the drum, and a coated sensor misreads wet clothes as dry, ending cycles early or running them long. Wipe the bars every month or so with a little rubbing alcohol on a cloth. The same film builds on the lint-screen mesh; if water pools on top of the screen instead of running through, scrub it in warm soapy water. Both are two-minute fixes that keep sensor drying accurate.