The short answer
An FLD dryer that starts and then stops short is nearly always being shut down on purpose by its own safety or sensing logic, not failing at random. On an automatic cycle the machine is watching moisture and temperature, and anything that confuses those readings ends the cycle early. Start with airflow and the sensor, not with the control board.
What you observe
- The cycle ends after a few minutes with wet clothes — Automatic sensing has decided the load is dry. That is a moisture-sensor reading, not a timer fault.
- The machine stops mid-cycle and restarts once it has cooled — The signature of a thermal protector cycling. It means the machine is overheating and recovering, over and over.
- A timed cycle completes but an automatic one does not — This is the single most useful test on the page: it isolates the sensing circuit from everything else.
- Clothes come out hot and still damp — Heat without airflow. The load is being cooked rather than dried, and the moisture has nowhere to go.
- NEAR MISS — the machine never starts at all — That is a start fault and it has a different cause list. This page is about a machine that runs and then quits.
Causes, most likely first on the FLD models
- The exhaust duct or the lint path is restricted — Ranked first on a vented machine: restricted airflow raises the temperature until a protector opens, which is exactly a cycle that stops and later restarts.
- The moisture sensor is coated or misreading — Second: the sensor strips inside the drum pick up softener residue, which insulates them and makes a wet load read dry. A cycle that ends in minutes is almost always this.
- A thermostat or thermal protector is cycling — Third: usually the consequence of the first cause rather than a failure in itself, which is why clearing the airflow comes before replacing anything.
- The load itself is wrong for the cycle — Last as a cause and first as an explanation: a single heavy item, or a drum packed past its capacity, defeats sensing on every machine ever built.
Check in this order, and why
- Run a timed cycle and watch whether it completes — First, because it splits sensing faults from protection faults in one test and needs no tools at all.
- Clean the lint filter and check the duct behind the machine — Second: on a vented machine this is where the heat that trips the protector has nowhere to go.
- Wipe the moisture sensor strips inside the drum — Third: a cloth and a little rubbing alcohol. If an automatic cycle then runs to completion, that was the fault.
- Re-run with a normal mixed load — Last: a single bulky item is a known false positive and it is worth eliminating before anything is replaced.
Before you open anything
Safety
Unplug the dryer or switch off its breaker before removing any panel — a capacitor can hold a charge after the power is off. Lint is combustible and a restricted duct is a fire risk, not merely an efficiency one. On a gas machine: if you smell gas, do not switch anything on or off, leave the building, and call the gas utility or 911 from outside. Do not look for the leak yourself.
When to call a technician
Call when the airflow path is genuinely clear, the sensor is clean, a timed cycle completes and an automatic one still will not. On an FLD dryer that combination points at the control or the sensing circuit itself, and both are tested with a meter under power. Call at once if the cabinet or the exhaust is too hot to touch, or if there is a scorched smell — an overheating dryer is a fire risk and the right response is to stop using it.
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Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
