Dryer wont stay running

Have a frigidaire dryer that will run for a while then stop. I can start it back up right away but each time i do the run time gets shorter. Motor gets a little warm. Is it tje motor? Sensor? Or a combo of things?

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@rod1174 what exact model is your dryer? what have you tried to fix it? Checked the vent to ensure no buildup? good airflow?

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