Chosen Solution

Clothes tumble in the heat but don’t dry. I have to dry 3 or 4 times for them to fully dry.

For a more complete answer we do need that model number. Meanwhile, here are the main causes

1. Clogged vent will cause the high limit thermostat to shut off the heating element. Blower wheel may be damaged, try rotation by hand to see if it is freeDefective heating element, test with a multimeterMoisture SensorHigh limit thermostat on the heating elementCycling Thermostat on the blower housing, test with multimeter