Frigidaire Dryer Repair in Toronto — Shuts off mid-cycle

• The single most common shuts-off-mid-cycle call on these 27" vented Affinity/Frigidaire machines is the high-limit thermostat cycling on restricted airflow, not a failed part. The OEM 3204267 high-limit (L260-70F, replaces 508516) is a roughly 260F cutout that opens when the heater housing overheats and only re-closes after the temperature drops about 70F, so a lint-choked vent makes it trip open, kill the heat (and on many models pause the cycle), then resume as it cools, over and over. We meter the 3204267 for continuity cold and replace it if it has failed permanently open, but the real repair on a 'stops then starts again' complaint is the blocked exterior vent or crushed transition hose driving the overheat. Swap the part without clearing the duct and it cooks the next one.
• A dryer that dies completely partway through and goes fully dead (no heat, often no tumble) is the inlet thermal fuse, the one-shot safety that ends a cycle permanently. The 137032600 thermal fuse (a non-resettable cutout that supersedes 137060800) blows on a single overheat event and breaks the circuit for good, so unlike the high-limit it does not reset and resume. The non-negotiable part of this fix: a blown 137032600 always means airflow was restricted first, so we replace the fuse AND clear the vent run and internal lint path, or the new fuse opens again on the next load. We carry it as part of the thermal kit so a same-symptom call closes on the first visit.
• On these machines E4A is a program-timeout fault: the cycle ran past its maximum allowed time without reaching its dryness target. That is most often restricted airflow (a clogged vent or a solid-door closet install), a weak or dead heat circuit, or a broken/loose blower blade, so a clogged vent or weak element throws E4A with a perfectly good sensor. The 134587700 control thermistor (replaces 1156925 / 134216500 / AP3866842) is one thing we check alongside the heat loop and the moisture-sensor bars: it reports drum temperature to the board, OEM spec is roughly 50k ohms at room temperature (~77F), and a reading near a few hundred ohms or one that won't move with heat is a failed sensor. Note that the separate 'ends early reading dry while the clothes are still damp' complaint is the auto-dry moisture-sensor circuit, not E4A; we wipe the metal moisture-sensor bars inside the drum first, because a fabric-softener glaze on the bars fakes that early-stop and costs nothing but a cloth to clear.
• A dryer that runs several minutes, stops mid-cycle, then will only restart after it sits and cools is the drive motor's thermal overload protector tripping. Per Frigidaire's own guidance the motor overload resets after roughly 30 minutes of cooldown, so the tell is the 'works again later' pattern. On this platform an overloaded motor is usually a dragging drive train, not a bad motor: worn drum support rollers or a failing rear drum bearing kit (5303281153, the ball-and-socket bearing that carries the back of the drum) load the motor until it overheats and cuts out. We pull the belt and spin the drum by hand first; a stiff or noisy turn points at the rollers/bearing rather than the motor itself.
• An intermittent stop where the drum quits as if the door popped open, usually under vibration, is the door switch losing contact. On the Affinity-era platform the door switch is 134813601 (3-wire, replaces 131843101; confirm the SKU against the model); the motor circuit only stays energized while the switch reads closed, so a tired switch or a loose strike lets tumbling vibration momentarily break contact and stall the cycle, then it picks back up when the door reseats. We meter the switch for continuity and wiggle-test it under load before condemning anything more expensive, since this is a $20-$40 switch faking a control-board complaint.
• A cycle that interrupts itself or refuses to advance, often paired with a stuck-feeling button, is E68, a control-side fault. E68 means the board is reading one of the keypad buttons stuck closed, so it sees a constant input that disrupts normal run and can stop the cycle. The first move is the SELECT + CANCEL reset (hold ~6 seconds until the buzzer sounds and 'RES' shows), then clean detergent/moisture residue from around the keys; if E68 returns after a true reset the membrane keypad or main control board is the part. We rule out the cheap reset-and-clean before quoting a board.
• Beyond the overheat-and-resume pattern, a clean shutoff with no code on a thermistor-controlled cycle can be a heat-circuit open that the board interprets as 'cycle complete.' When the 134587700 thermistor or the heat loop (element 134792700, thermal fuse 137032600, high-limit 3204267) reads no rise, an auto-dry cycle can time out and stop early because the moisture target is never reached. We ring out the whole heat loop on these calls rather than assume a sensor, since on this platform a cold element makes a sensing cycle quit just as readily as a bad thermistor does.

Frigidaire shuts off mid-cycle in Toronto — the local specifics

• The recurring Toronto pattern on Frigidaire mid-cycle shutoffs is the airflow-driven thermostat trip: a unit that heats, then cuts out partway and resumes after it cools, almost always traces back to a lint-packed or crushed vent run choking the 27" vented platform rather than a primary part failure. The second recurring story is the auto-dry early-stop -- a load that ends reading 'dry' while still damp -- which on these machines is the moisture-sensor bars or the 134587700 thermistor, not a power fault.
• We bring the thermal kit to these calls -- the 3204267 high-limit and 137032600 inlet thermal fuse -- plus a 134587700 control thermistor for the early-stop variant and a 134813601 door switch for the vibration-quits-mid-tumble variant, so the same-symptom visit closes on the first trip.

For the full Frigidaire dryer module — every fault, part number and code — see Frigidaire dryer repair in Toronto, and for the same fault across all brands the dryer shuts off mid-cycle guide.