Dryer not heating drum tumbles — drum tumbles

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   Remove the load, check that the drum is empty, and select a documented heated timed cycle rather than Air Only, Air Fluff, or another no-heat option. If there is no odor, smoke, sparking, or abnormal heat and the model instructions permit a brief check, run one short observation and open the door carefully to compare whether the air and drum are warming.

   Expected result: The cycle was Air Only or low heat, the drum and air remain cool on a heated cycle, warmth is present but drying is slow, or an odor, smoke, sparking, or unusual heat appears.

   Next step: Correct only the cycle selection and perform no more than one safe confirmation. Keep the dryer off and use the relevant service branch for persistent no heat, poor airflow, or any hazard sign.

   Stop if: Do not continue the cycle for diagnosis, touch a hot surface or heating area, or test further for smoke, flame, sparking, a burning smell, or abnormal heat.

   Why this matters

   Why: A no-heat setting explains a cool drum. A genuinely cool heated cycle supports a supply, heater, burner, thermal, or control problem. Warmth with long drying makes airflow, load, or moisture issues more likely than total heater failure. Odor, smoke, sparks, or severe heat is a stop-use condition.

2. Check 2

   With the dryer Off, identify whether it is electric or gas. For an electric model, look at the household panel for a tripped dryer breaker and reset it no more than once according to the panel instructions. For a gas model, check only that the external supply valve is visibly in its normal open position if it is accessible without moving the dryer or touching gas fittings.

   Expected result: An electric breaker is tripped, it trips again, the gas supply valve appears closed, a cord or receptacle is hot or damaged, a gas odor is present, or the visible supplies appear normal.

   Next step: If a breaker reset does not hold or the connection is abnormal, leave the dryer off and arrange electrician or appliance service. If gas odor is present, avoid switches and flames, leave the area, and contact the gas utility or emergency services from a safe location. If supplies appear normal, continue to airflow and service checks without opening the machine.

   Stop if: Do not remove panels, test live voltage, move a gas dryer to reach a valve, disconnect gas fittings, or reset a breaker repeatedly.

   Why this matters

   Why: Electric supply paths can allow tumbling while the heater is unpowered. A closed gas valve can allow the drum to turn without burner heat. A repeated breaker trip, damaged connection, or gas odor indicates an electrical or gas hazard, not a reset opportunity. Normal visible supplies do not rule out an internal fault.

3. Check 3

   After the dryer is cool and disconnected from use, clean the removable lint screen and inspect the visible exhaust duct, outside hood, and area behind the dryer without opening the cabinet. Look for lint accumulation, a crushed or kinked duct, a disconnected joint, a blocked hood, or little air movement previously noticed during normal use.

   Expected result: The screen is blocked, lint is visible around the housing or behind the dryer, the duct is crushed or disconnected, the outside hood is blocked, or the visible exhaust path looks clear.

   Next step: Clean only the removable screen and plainly accessible loose lint, and arrange vent cleaning or repair for a restriction or disconnection before use. Keep the dryer off when no heat persists; do not restart it to prove airflow.

   Stop if: Do not reach into the cabinet, insert tools into the duct, use a crushed or damaged duct, or operate the dryer with a loose, blocked, or missing lint screen.

   Why this matters

   Why: Lint and restricted exhaust can reduce airflow, lengthen drying, and raise operating heat enough to involve thermal protection. A clear exterior does not prove that the internal heater path or chassis is clear. Hidden lint requires qualified cleaning and inspection.

4. Check 4

   Record whether the problem affects every load or only one cycle, whether clothes are warm or completely cool, whether they were soaking wet or overloaded, whether drying times changed, and whether the dryer was recently installed or serviced. Do not add another load merely to reproduce no heat.

   Expected result: Only Air Only or low-heat loads seem affected, the load was unusually wet or large, clothes are warm but damp, every heated cycle is cool, or the symptom began after service or installation.

   Next step: Use the correct documented cycle and avoid overloaded or abnormally wet loads only after the dryer has passed safety and supply checks. Keep persistent no heat out of service and provide the pattern to a technician.

   Stop if: Do not change thermal settings to force heat, dry chemical- or oil-contaminated items, or continue if clothes or the cabinet become unusually hot or smell burnt.

   Why this matters

   Why: Cycle selection and load moisture can mimic a heating failure. Warm but damp clothes support airflow, load, or vent concerns. A cool drum on every heated cycle supports supply, heater, burner, thermal, or control diagnosis. A post-installation symptom raises power, gas, wiring, vent, or configuration questions.

5. Check 5

   Photograph the model and serial label, cycle display, lint screen, visible duct and hood, and any accessible cord or gas-supply condition. Record whether the dryer is electric or gas, whether the drum tumbles normally, and whether there was a fault code, odor, unusual sound, or breaker operation. Do not remove panels or heater covers.

   Expected result: The model is clear, the model is unknown, an error code or unusual sound is present, an electrical or gas abnormality is visible, or only the no-heat symptom is present.

   Next step: Use the exact owner manual or give the record to qualified appliance service. Keep the dryer off until persistent no heat, unusual noise, or supply abnormality is evaluated.

   Stop if: Do not probe wiring, bypass a fuse or thermostat, inspect a burner while operating, or use a generic part based only on the symptom.

   Why this matters

   Why: Exact model information determines the heater, burner, thermal-device, and control layout. An error, abnormal sound, or supply condition may narrow the service path but cannot safely identify a part from outside. A simple symptom with normal visible conditions still requires internal diagnosis if heat is absent.

6. Check 6

   If a heated cycle is selected, the visible supply is normal, and the drum still tumbles without heat, leave the dryer out of use and arrange qualified appliance service. Ask the technician to evaluate the heater or burner, igniter, thermal fuse or limiter, thermostat, wiring, motor switch, and control according to the exact model.

   Expected result: Heat returns after a permitted external correction, no heat persists, the dryer trips a breaker, gas ignition does not occur, or a burning odor or overheating accompanies the failure.

   Next step: Keep the dryer disconnected from use and provide the complete record to qualified appliance, electrical, or gas service. Do not replace or bypass internal heating or safety components without model-specific diagnosis.

   Stop if: Do not open the cabinet, test energized parts, bypass a thermal fuse or limiter, defeat a door or safety switch, or run repeated cycles after a no-heat failure.

   Why this matters

   Why: A lasting external correction can explain the symptom, but persistent no heat supports an internal component or supply fault. Breaker operation, failed gas ignition, burning odor, or overheating raises the urgency and makes repeated use unsafe.