--- title: "Dryer not heating" description: "Samsung dryer no heat — dryer not heating." url: "https://samsungmiami.support/symptoms/dryer-not-heating/" date_modified: "2026-09-04" Appliance type: "Dryers" --- # Samsung dryer not heating ### Check the obvious supply case first On an electric dryer, a machine that tumbles perfectly and produces no heat at all is very often half its supply — one leg of a 240-volt circuit gone at a breaker or a connection. The motor runs on one leg and the element needs both, which is exactly this symptom. It is an electrician's check, and it is worth doing before an element is bought. ### What it usually means, by the kind of Samsung appliance Samsung sells one appliance in several forms, and the same behavior points at different things on each of them. A built-in side-by-side and an integrated column are not the same service situation, and a dual-fuel range and an induction range fail in different halves. - **Vented electric** — Element, thermostats, thermal cut-out and the relay. Half of a 240-volt supply missing gives a dryer that tumbles cold. - **Vented gas** — Samsung's HC2. Igniter glows, valve opens, flame sensor confirms — and any one of the three stops it. - **Heat pump** — No element at all. A machine that tumbles cold here is the refrigeration circuit and it is a different conversation. ### Why the duct is on a heating page The thermal cut-out in a dryer exists to stop it overheating when air cannot move. When it does its job, the dryer tumbles and does not heat — which looks exactly like a failed element. Replacing the cut-out without clearing the duct gets you a dryer that works for a week. Every heating repair on this site includes checking the airflow for that reason. ### The gas sequence Three parts have to work in order: an igniter that glows red, a gas valve that opens, and a flame sensor that confirms the flame so the valve stays open. Watching one start attempt tells a technician which of the three it is, which is why we ask you not to keep cycling it before the visit. Half the supply missing A double breaker with one side tripped, or a loose connection. Tumbles fine, no heat. The heating element Or its thermostats and the thermal cut-out, which are a circuit and are tested together. The burner sequence on gas Samsung's HC2. Igniter, valve or flame sensor. A blown thermal cut-out Which is a symptom of a blocked duct rather than a cause in itself. Confirm it really is cold, not just cool Feel the exhaust outside. Slightly warm is a different page. On electric, have the breaker and the outlet checked Both legs. This is measured by somebody qualified, not guessed at. On gas, listen for the igniter It glows and then the burner should light with a soft whump. Check the duct anyway A blocked duct takes out thermal cut-outs, so it is often behind an element failure. It tumbles and the air stays cold What it usually means Electric, gas and heat pump make heat three different ways Samsung names low supply voltage as a cause on electric machines A blown thermal cut-out usually means the duct, not the part Check the obvious supply case first On an electric dryer, a machine that tumbles perfectly and produces no heat at all is very often half its supply — one leg of a 240-volt circuit gone at a breaker or a connection. The motor runs on one leg and the element needs both, which is exactly this symptom. It is an electrician's check, and it is worth doing before an element is bought. What it usually means, by the kind of Samsung appliance Samsung sells one appliance in several forms, and the same behavior points at different things on each of them. A built-in side-by-side and an integrated column are not the same service situation, and a dual-fuel range and an induction range fail in different halves. Vented electric — Element, thermostats, thermal cut-out and the relay. Half of a 240-volt supply missing gives a dryer that tumbles cold. Vented gas — Samsung's HC2. Igniter glows, valve opens, flame sensor confirms — and any one of the three stops it. Heat pump — No element at all. A machine that tumbles cold here is the refrigeration circuit and it is a different conversation. Why the duct is on a heating page The thermal cut-out in a dryer exists to stop it overheating when air cannot move. When it does its job, the dryer tumbles and does not heat — which looks exactly like a failed element. Replacing the cut-out without clearing the duct gets you a dryer that works for a week. Every heating repair on this site includes checking the airflow for that reason. The gas sequence Three parts have to work in order: an igniter that glows red, a gas valve that opens, and a flame sensor that confirms the flame so the valve stays open. Watching one start attempt tells a technician which of the three it is, which is why we ask you not to keep cycling it before the visit. ### It heats for a while and then goes cold mid-cycle. That is the classic thermal cut-out or cycling thermostat picture, and it points hard at airflow. Have the duct done before anything is replaced. ### Can I use it while I wait? On an electric machine that tumbles cold, yes, though it will not dry. On a gas machine, or if there is any smell of gas, no — call and stop using it. --- **[Read full article: Dryer not heating](https://samsungmiami.support/symptoms/dryer-not-heating/)**