Start here
On a Martel dryer, a drum that turns without heat is most often a thermal cut-out that has opened rather than a blocked lint filter or exhaust duct. Wear comes first, because a conventional dryer in an older room has been running long enough for the moving parts to be the oldest thing on the list. All three checks below are owner work, and not one of them needs a part.
What the owner observes
- The drum turns for the full cycle and the clothes stay damp — Turning without drying separates the motor side from the heating side immediately.
- Heat that works sometimes and not others — Intermittent heat points at ignition or at a device cycling on temperature.
- The lint filter is packed after every load — A filter filling that fast means the duct behind it is already restricted.
- NEAR MISS — it heats but stops partway — Stopping mid-cycle is a cycle fault and belongs on that page.
Why this happens, likeliest first
- A thermal cut-out that has opened — When airflow is restricted the thermal fuse or high-limit device opens to protect the machine. It does its job and does not reset, so the dryer then tumbles cold indefinitely even after the blockage is cleared. It leads because it is what a blocked duct leaves behind, and it is the reason clearing the duct alone does not always restore heat. They are found in older kitchens and utility rooms where the services around them are as old as the machine.
- A heating element that has failed — An element breaks open with age and thermal cycling. The drum still turns, the timer still runs, and the air never warms at all — a completely cold dryer rather than a weak one. It ranks here because the evidence only means something once airflow has been ruled out.
- A blocked lint filter or exhaust duct — A dryer works by moving heated air through the load and out. A loaded filter or a duct packed with lint chokes that flow, so the drum holds heat, the safety thermostat cuts the heater, and the clothes come out damp and warm. It is last only because the duct was cleared recently, not because it stops mattering.
The order to check in
- Note whether heat failed suddenly after a long slow-drying spell — That sequence is a cut-out doing its job after weeks of restriction. First, because it is the likeliest to end the job.
- Feel the exhaust air a few minutes into a full-heat cycle — Completely cold air with the drum turning points at the element. Second, once that is clean.
- Clean the filter and check for airflow at the outside vent — A weak or absent flow outside is the whole answer, whatever the heater is doing. Third, and by now the answer is usually in hand.
What an owner can safely check
- Clear the airflow fully first, then stop — Replacing a cut-out without clearing the duct just opens the next one.
About 15 min
- Feel the exhaust, note that it is cold, and stop there — An element sits behind a panel on a live machine and is not owner work.
About 10 min
- Clean the filter, then disconnect and clear the exhaust duct — Do the whole run to the outside vent, including the flap. This is the one that matters most.
Tools: vacuum, brushAbout 45 min
- STOP — clear the airflow first, then book the visit — Replacing a heating part without clearing the duct simply destroys the new part too.
The part that is not optional
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Lint is the fire hazard in this appliance: a duct that has not been cleared is the single most dangerous thing about a dryer, and clearing it is free.
The line between a fix and a call
Call when the duct is clear, the programme is right and the supply is proven, and the machine still tumbles cold — that is an element, a cut-out or a gas fault, and all three are behind a panel. Anything on a gas machine past the supply valve is a technician's job from the start. On this brand parts are conventional and mostly generic, which keeps a repair sensible.
Where to go next
What is not on this page
This page is written for the appliance class, not for one Martel model line. Where a family- or model-specific page exists it is the better answer and it is linked below — go there first if your model is named. Not here: element ratings, duct diameters, burner assemblies, or part numbers.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
