Electric dryer troubleshooting
Dryer Runs but Does Not Heat? Check Power and Airflow First
An electric dryer can tumble on partial power and still have no heat. Verify the supply and airflow before blaming the heating element.
The quick answer
What should you do first?
For an electric dryer that tumbles but does not heat, first confirm the cycle is not Air Fluff or another no-heat setting. Then fully reset the dryer's double-pole breaker by switching it off and back on. An electric dryer can sometimes run its motor on 120V while losing the other leg needed for 208/240V heating. Clean the lint filter and make sure the exhaust path is not crushed or blocked. If the breaker trips again, the cord or outlet shows heat damage, or there is a burning smell, stop using the dryer and have the electrical fault inspected.
Start with these checks
- 01
Confirm the selected cycle calls for heat
Check the temperature and cycle selections. Air Fluff, cool-down, and some delicate settings can create a no-heat complaint even when the machine is operating normally.
- 02
Reset the two-pole dryer breaker once
GE notes that an electric dryer may tumble with only 120V present but needs the full 208/240V supply to heat. Move the dryer's breaker fully off and then back on. If it trips again, do not keep resetting it.
- 03
Check the lint filter and exhaust path
Clean the lint filter and inspect the accessible vent for crushing or restriction. Verify the exterior vent opens while the dryer runs. Restricted airflow lengthens drying time and can create dangerous heat buildup.
- 04
Separate no heat from weak drying
If the drum never warms, focus on supply voltage, controls, thermal protection, and the heating circuit. If it warms but clothes take much longer than normal, airflow restriction is more likely and should be corrected before replacing heat components.
- 05
Stop at damaged wiring or repeated tripping
A burned plug, scorched receptacle, damaged cord, repeated breaker trip, or burning odor is not a continue-testing condition. Disconnect the appliance if it can be done safely and use qualified service or an electrician as appropriate.
The drum can turn even when the heater does not have full voltage
GE explains that an electric dryer may operate with a partial 120V supply while the heating system requires a dedicated 208/240V supply. That makes a partially tripped double-pole breaker a useful first check when the symptom is 'runs normally but no heat.'
A one-time breaker reset is different from repeatedly resetting a breaker that trips again. Repeated tripping is evidence of an unresolved overload, short, appliance fault, or wiring problem and deserves diagnosis rather than persistence.
A heating dryer still needs a clear exhaust path
The U.S. Fire Administration advises cleaning the lint filter, checking that the vent behind the dryer is not damaged, crushed, or restricted, and confirming the exterior vent opens during operation. Poor airflow can make a dryer seem weak while also increasing fire risk.
If a dryer heats but drying time has steadily increased, solve the airflow problem before assuming the heater is weak. A restricted system keeps moisture and heat in the machine instead of moving them outdoors.
Internal heater and terminal-block testing has a higher safety boundary
Heating elements, thermal devices, relays, terminal blocks, and supply conductors can require electrical measurements and disassembly. If the external checks do not resolve the problem, model-specific service information and safe electrical isolation are more appropriate than probing energized dryer circuits without the training and equipment to do so.
Clear answers
Common questions
Can a dryer run on 120 volts but not heat?
An electric 208/240V dryer can sometimes tumble when one supply leg is missing, while the heating circuit cannot operate normally. That is why a fully reset double-pole breaker is an important first check.
Can a clogged vent make a dryer stop heating?
A restriction can reduce drying performance and contribute to overheating or protective-device operation. Regardless of whether it is the sole cause, a crushed or blocked dryer exhaust is a safety issue that should be corrected.
Should I keep resetting the breaker if the dryer trips it?
No. A breaker that trips again is reporting an unresolved condition. Stop using the dryer and have the appliance or circuit diagnosed.
Related troubleshooting
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- 02
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- 03
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Evidence
Sources and method
This guide combines a maintenance troubleshooting approach with current technical guidance from the sources below. Safety rules, manufacturer instructions, and applicable codes take priority over general troubleshooting guidance.