The short answer
A dryer that tumbles without heating has usually lost airflow or half its supply rather than its element. The drum turning proves nothing about the heater - the two run from different parts of the circuit.
What you actually see and hear
- The drum turns and the cycle runs but nothing gets warm — Heat, supply or a tripped cut-out. Not the motor.
- It dried normally until recently and now takes several cycles — Gradual airflow loss, almost always the duct.
- The cabinet is hot but the exhaust is barely warm — Heat is being made and not carried away.
- It heated, then stopped heating part-way through a cycle — A thermal cut-out operating on a restricted vent.
- NEAR MISS - the drum does not turn at all — That is a start or belt fault, and a different page.
Causes, most likely first on this machine
- Restricted vent duct or a blocked outside flap — First. On a full-size machine a long duct silts up invisibly, and the cut-outs that protect the heater operate long before the element itself fails.
- Half the supply lost at the breaker or the terminal block — Second, and specific to a large-appliance circuit: the drum turns and the heater does nothing, which owners reasonably read as an element failure.
- A tripped thermal cut-out or blown thermal fuse — Third, and it is the consequence of the first cause rather than an independent fault.
- Lint filter blocked — Fourth. Cheap, universal and frequently the start of the chain.
- Heating element — Fifth. Elements do fail open, but usually after a period of restricted airflow has cooked them.
- Thermostat or control — Last, and what remains once everything upstream is clear.
Check in this order, and why
- Clean the lint filter and check the duct and flap — The top of the list, and free.
- Check the breaker - both halves, if it is a double breaker — A half-tripped breaker is the classic hidden cause.
- Feel the exhaust air at the outside flap — Strong warm flow means the air path is fine.
- Note whether it never heats or heats then stops — Never is supply or element; heats then stops is a cut-out.
What an owner can safely check
- Wash the lint filter and dry it completely — Removes the invisible film a shake leaves behind.
Tools: warm waterAbout 10 min
- Switch the dryer breaker fully off and back on — A breaker tripped on one leg can look normal at a glance.
About 5 min
- Clean the duct along its whole length and clear the outside flap — This is the job that prevents the rest of this list.
Tools: duct brush, vacuumAbout 60 min
- Feel the airflow at the outside flap during a cycle — Weak flow with hot air means a restriction.
About 10 min
- Check nothing has been added to the same circuit — A dedicated large-appliance circuit should serve the dryer alone.
About 10 min
- STOP HERE before testing the element, thermostats or thermal fuse — Live testing on a high-current appliance is an engineer's job.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel - a capacitor can hold a charge after the power is off. A full-size dryer is on a dedicated large-appliance circuit, so switch off at the breaker rather than at any switch, and treat the terminal block as live until you have. Lint is fuel: never run the machine with the vent disconnected indoors, and never bypass a thermal cut-out to get a cycle to finish.
When to call a technician
Call when the duct is clean, the flap opens, the breaker has been cycled and the drum still tumbles cold - that leaves the element, a thermostat, a thermal fuse or the supply connection. Mention whether the machine had been drying poorly beforehand, because a thermal fuse that blew after weeks of weak drying means the duct must be fixed too or the replacement will follow the old one. Call immediately for a burning smell or a breaker that trips on reset.
Nearest pages of this class
What this page does not cover
This page is written for the full-size vented dryer class, not for one family or model line. Where a brand- or model-specific page exists for your unit it is the more specific answer and it is linked above, so go there first if your machine is named. What is deliberately not here: drum roller, belt and idler part numbers, thermostat ratings, element specifications and vent length limits, all of which differ by family and belong on the page for that family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
