What this usually means
A dryer that will not start is usually a door switch, a supply problem or a thermal protector that has opened. On a machine with a heavy supply, a partial loss of power produces a drum that will not turn at all. The badge is local and the hardware is not, so diagnose the component rather than the name. The order below follows the machine own logic, which is the fastest way to reach the same conclusion it has.
The observable signs
- No lights, no drum, no response — A supply fault or a door switch that is not made.
- A hum with no drum rotation — The motor is receiving power and not turning, which points at a belt or a seized part.
- The machine runs and does not heat — A heating circuit fault rather than a start fault, and a different page.
- NEAR MISS: it stops partway through a cycle — That is a cycle or overheat fault, not a start fault.
Most likely first
- Door switch not confirming closed — First, and first for a reason. It leads because the door switch is the first condition the machine checks and a mechanical latch can satisfy the door without satisfying the switch. The most common cause. The door can latch mechanically while its switch fails to make, and the machine simply refuses.
- Partial or missing supply — Second. A dryer on a heavy circuit can lose one half of its supply and present as a machine that will not start at all, with everything else looking normal.
- Thermal cut-out or protector open — Third. A protector that has opened because of restricted airflow stops the machine and stays open until it is reset or replaced.
- Broken drive belt — Fourth. The motor runs, the drum does not, and the machine hums.
- Body: The order below is what makes this page worth reading. It is a ranking rather than a measurement, and it carries no numbers because no fact bundle supports any.
What to check first, and why that first
- Open and close the door firmly and listen for the switch — A machine that starts on a firmer close has answered the question.
- Check the breaker, including both halves of a heavy circuit — A partial supply loss is the classic reason a dryer is entirely dead.
- Listen for a hum when start is pressed — A hum with no rotation moves the investigation to the belt.
- Body: The order below checks the machine start conditions before anything mechanical is suspected.
What an owner can safely check
- Close the door deliberately and press start again — The single highest-yield check in this category.
- Clear the lint filter and check the vent run for restriction — Restricted airflow is what opens thermal protection in the first place.
Tools: vacuum
- Turn the drum by hand with the machine isolated — A drum that spins freely with no resistance suggests a broken belt.
- STOP before removing the back panel or testing a switch — That is a live circuit and a heated appliance.
Read this before you start
Safety
Unplug the appliance or switch off its breaker before removing any panel; a capacitor can hold a charge after the power is off. Never bypass a door switch or a thermal protector to make a dryer run: the protector opened because the machine was too hot, and defeating it is how a lint fire starts.
The point at which to call someone
Call when the door closes properly, the supply is proven at both halves of the circuit and the machine is still silent, or when it hums without turning. Call rather than investigate if the machine has been overheating, because a protector that has opened is a symptom of a venting problem that needs correcting. Say whether the machine refuses to start or stops partway: they are different faults.
Closest neighbours
Scope of this page
This page is written for the appliance class rather than for one Breda family or model line. Where a family- or model-specific page exists for your unit it is the more specific answer and should be preferred over this one; the brand and appliance hub linked below routes to everything more specific that exists today.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
