A dryer that runs but does not dry is the most-heard sentence on the intake line, and the honest answer usually lives in the vent rather than the machine. The sweep on a dryer starts at the wall, not the drum.
North End dryers live in houses that were built before dryers existed. The Stadium District and the North Slope run laundry rooms that were carved out of basements and back porches decades after the framing went up, and their vents leave the house whichever way a historic exterior would allow — which is rarely the short way.
The leg across the bay from the point covers Stadium, the North Slope, Proctor, Old Town and Point Ruston together, and the dryer sweep on that leg starts with two questions the house answers: how the vent gets out, and whether the circuit feeding the machine is delivering what the machine expects.

In the historic districts a side wall is not a free place to punch a new vent, so North Slope laundry rooms vent up through a chase, across a ceiling and out wherever the district permitted — a run with more elbows than a modern house would ever tolerate. Long runs lose pressure and hoard lint, and the dryer breathing through one heat-cycles, trips its fuse and dries a load in two passes while every component tests healthy. The sweep measures the loss at the transition hose and says plainly, in the log, when the duct rather than the dryer owns the complaint, and what a duct crew would need to change.
The century houses also feed the dryer through circuits that were added, extended and shared over a hundred years. A 240-volt dryer on a leg that sags under load heats weakly and slowly, and the symptom looks like a failing element. Owen meters supply voltage under load before any heating part is blamed, and when the wiring owns the fault the readings go to the household’s electrician in writing rather than into a part the house would kill again.
It usually goes up, over and out a side wall the district allowed. Static pressure at the machine says how much that run costs, and the log says whether the duct or the dryer is the fault.
Voltage under load gets metered before any element is suspected. A sagging leg on an old circuit mimics a bad element exactly, and the readings go to your electrician if the wiring owns it.
Yes. Heat-pump and condenser dryers get their own sweep — filters, condenser, pump — and the same written log.
Phone, ZIP, address, machine and symptom. Owen calls back with a real window.
Phone, ZIP, address, machine and the symptom. Owen rings back with a window that holds.