Samsung Dryer Repair in Toronto — Won't start / no power

• Door switch not closing the start circuit (DC64-00828A) is the single most common Samsung won't-start that isn't a board: the console lights and beeps but the drum never energizes because the door circuit is open. RepairClinic documents this exact part as the fix for a Samsung that won't start (and for one that runs with the door open), and it fits the high-volume DV42H through DV50K families. We listen for the latch 'click' and meter the switch terminal-to-terminal for continuity before pulling the cabinet, since it's the cheapest cause to rule out -- and we inspect the door strike/latch alignment in the same pass, because a worn strike that won't let the latch seat fakes the same dead-start on a perfectly good DC64-00828A switch. (Samsung has since superseded DC64-00828A to DC64-00828B; the A number remains a valid OEM catalog number and the two interchange.)
• A blown one-shot thermal fuse on the blower housing (DC47-00016A) stops a Samsung DEAD, not just no-heat: RepairClinic and Samsung's own troubleshooting both note that when this non-resettable fuse opens, many Samsung models won't start at all because the fuse sits in the start/power path, so the motor won't even attempt to turn. The fuse can never be reset -- it must be replaced -- and it is never the root cause: a blown DC47-00016A is the machine reporting that exhaust temperature spiked, so we meter it for continuity cold (good reads ~0 ohms) and then clear the restricted vent / lint chamber that cooked it, or the new fuse opens again on the next load. (This is the same DC47-00016A on our not-heating stack; on the won't-start variant it kills the whole circuit, not just the heater.)
• A drive motor that HUMS or buzzes on Start but won't turn the drum is the won't-start that actually points at the motor: DC31-00055G (OEM-interchangeable DC31-00055H / DC31-00055D, AP5331095). RepairClinic and AppliancePartsPros document the failure as a bad run winding or a faulty centrifugal start switch -- the motor draws too many amps, heats, and its internal overload shuts it off; because the centrifugal switch isn't sold separately, the whole motor is replaced. The bench check is winding resistance (roughly 2.88 ohms across terminals 3-4 and 3.5 ohms across 4-5, neither open) plus confirming voltage from the control relay to the motor. Before condemning it we rule out a bound drum roller (DC97-16782A) and a seized idler (DC93-00634A) first, because a dragging drive train fakes a dead motor on this platform far more often than the windings actually fail -- a hum with the belt pulled and the drum turning free by hand is what actually condemns the DC31-00055G.
• A snapped or jumped drive belt (6602-001655) can present as a won't-start, not just a free-wheeling drum: when the belt lets go, the motor may stall or the dryer simply won't begin the cycle. RepairClinic lists this exact belt for a Samsung whose symptoms include won't-start / won't-turn in addition to no-spin. We open the top and hand-spin the drum -- free with zero resistance points at a snapped or thrown belt -- and because Samsung routes the belt over both the motor pulley and the spring-loaded idler, a belt that 'jumped the track' looks identical to one that broke. We renew the belt and inspect the idler (DC93-00634A, spring DC61-01215B) together so the new 6602-001655 doesn't walk off again, since a tired idler is usually what let the belt go in the first place.
• When the buttons respond, the door/belt/fuse all test good, and house power is confirmed, the won't-start is the main control board: DC92-01626A (replaces AP5916812 / 3996785 / PS9605983). AppliancePartsPros documents the exact scenario -- a Samsung that worked intermittently like a bad on/off switch then quit entirely, with the thermal fuse and door switch already verified good. The load-bearing test is checking for voltage from the board to the motor when Start is pressed: present-but-no-spin points at the motor, absent points at the board. We match the board to the data plate by serial, because Samsung ships visually similar boards with different software -- the DV45H7000EW/A2 family uses DC92-01626B and substituting a DC92-01626A there can make the dryer fail to stop automatically -- so we verify the variant against the model, not the photo.
• FE on the display is a frequency error, not a mechanical fault: per Samsung's and Sears PartsDirect's code references, FE means the control is seeing an invalid power-source frequency (unstable or improper incoming 240V supply, or the control misreading it), so the dryer refuses to start. The documented path is to confirm the outlet, breaker, and that the home is actually delivering 60Hz first; if the supply is verified clean and FE persists, Samsung's own guidance is to replace the electronic control board (DC92-01626A). We meter both legs at the outlet and check the breaker before quoting any part, because no door switch, fuse, belt, or motor will fix a supply-frequency fault.
• The most over-reported Samsung 'dead dryer' isn't a parts call at all -- it's Child Lock or a post-outage lockout. Samsung's troubleshooting confirms that with Child Lock active the panel is disabled and the cycle won't launch; on DV42 the fix is holding Dry Level + Time together for 3-5 seconds until the lock icon clears, NOT a repair. A surge- or outage-locked control reads as dead but recovers on a power cycle (unplug 60 seconds, or reset at the breaker). We rule both out by phone or in the first 60 seconds -- confirm the cycle actually starts (Time Dry, hold Start, timer counts down) -- so we never sell a door switch, fuse, or board on a dryer that was only locked out at the panel.

Samsung won't start / no power in Toronto — the local specifics

• The recurring Toronto pattern on a 'dead' Samsung dryer is that two cheap, non-board causes account for most calls: a door switch that lights the console but won't close the start circuit, and a blown blower-housing thermal fuse that's really a clogged-vent symptom. The hum-but-won't-spin subset that points at the DC31-00055G motor is far rarer than callers fear, and a meaningful share of 'it just stopped working' Samsung calls in the GTA un-book over the phone as Child Lock or a post-outage panel lockout -- so we triage the panel and the vent before quoting any teardown part.
• We roll to Samsung won't-start calls with the door switch (DC64-00828A), blower thermal fuse (DC47-00016A), and drive belt (6602-001655) on the van, plus a meter to confirm voltage-to-motor and door/fuse continuity on the spot. The DC31-00055G drive motor and the DC92-01626A control board we serial-match and bring in after the on-site diagnosis, so we never parts-cannon a board onto a dryer that was only locked out or starved of airflow.

For the full Samsung dryer module — every fault, part number and code — see Samsung dryer repair in Toronto, and for the same fault across all brands the dryer won't start / no power guide.