Dryer Repair in Philadelphia

A dryer is really an air-moving machine. A blower wheel pulls room air across a heat source, through the spinning drum where it picks up moisture, out through the lint screen, and down the vent to the outdoors. An electric dryer heats that air with a coiled element; a gas dryer burns natural gas at a burner with an igniter and a pair of valve coils. Either way, a set of thermostats and a thermal fuse keep the temperature in a safe range.

The most important thing to know is that the air has to leave. When lint builds up in the screen housing, the duct behind the machine or the vent hood, the dryer runs hotter, takes longer, and starts tripping safety devices. A large share of dryer complaints, from 'takes two cycles' to 'won't heat at all', begin as an airflow problem.

Electric dryers run on a dedicated 240-volt circuit. Their usual failures are a burned-open heating element, a blown thermal fuse, a failed cycling thermostat, or a bad door switch. Because they need both legs of the 240-volt supply to heat, a tripped half of the breaker can leave the drum turning with no heat.

Gas dryers plug into an ordinary 120-volt outlet for the motor and controls and use gas for heat. The igniter glows, a flame sensor confirms heat, and the gas valve coils open. Weak coils are a classic gas dryer fault: the dryer heats at first, then stops heating once the coils warm up.

Ventless condenser dryers and heat pump dryers do not exhaust outdoors. They pull moisture out of the air and send it to a drain or a collection tank. They are common in condos and closets where venting is impractical, but they need their condenser or filters cleaned and they take longer to dry than a vented model.

Runs but no heat: on electric models, a failed element, thermal fuse or high-limit thermostat; on gas, a bad igniter, flame sensor or valve coils. A tripped breaker half is worth ruling out on electric units.

Takes too long to dry: restricted venting first, then a weak element or a thermostat cycling too early. A vent hood flap that does not open when the dryer is running is a reliable clue.

Will not start: a door switch, start switch, thermal fuse or drive motor. A broken belt often lets the motor run with the drum not turning, and many dryers include a belt switch that stops the motor entirely.

Thumping, squealing or scraping: worn drum rollers, a frayed belt, a dry idler pulley, or worn drum glides along the front. These parts wear predictably and are routine replacements.

Too hot or a burning smell: stop using the dryer. A blocked vent or a stuck-closed cycling thermostat can drive temperatures up quickly.

In a typical older rowhouse the dryer sits in the basement and vents out through a basement window panel or a hole in the rear wall. Those runs are often short and straight, which is ideal, but basement vents get crushed behind machines, lose their hoods to weather, or sit near grade where leaves and snow block them. Look at the outside hood while the dryer runs; you should feel strong airflow and see the flap open.

New-construction homes with second-floor laundry closets often run the vent a long way, through floor joists or up to the roof. Long runs with several elbows collect lint quickly and are a common reason a newer dryer seems to dry poorly. Vents should be rigid or semi-rigid metal; plastic or foil accordion duct does not belong behind a dryer.

Gas dryers are common in Philadelphia, served by PGW. If you ever smell gas near the dryer, leave the house, do not operate switches, and call PGW or 911 from outside. For electric dryers in older homes, the outlet may be an older three-prong 240-volt type, which can be fine but must match the cord on the dryer; a mismatch is a job for an electrician rather than an adapter. Damp, humid basements also slow drying, since the air going in is already moist.

Clean the lint screen before every load and wash it with soapy water occasionally, since fabric-softener film can block airflow even when the screen looks clear. Pull the dryer out carefully and check that the duct is not kinked or crushed. Disconnect the duct and run the dryer briefly; if it suddenly dries well, the vent is your problem.

On an electric dryer, check that both halves of the breaker are on. Do not bypass a thermal fuse to get the dryer running, and do not open a gas dryer's burner assembly. A fuse that blew did so for a reason, usually poor venting, and that reason needs to be found.

The technician checks airflow at the vent, then tests the heat circuit, the safety devices, the motor and the drive parts. On gas models that includes watching the ignition sequence. Before any work, you see the price in writing, along with a note if the vent itself needs attention beyond what we fix inside the cabinet.

Few household machines are as fixable as a dryer. Elements, igniters, coils, fuses, belts, rollers and motors are all standard parts. Replacement makes more sense when the drum itself is rusted or damaged, when a control board for an older model is no longer made, or when the cabinet has rusted through after years in a wet basement.