Is probably a vent problem, a thermostat tripping too early or a loose blower wheel
Disconnect the dryer from the vent
Run it
Check for heat and good air flow
Does it now run OK
If yes, you probably have a vent problem. Clean it and check that the outside vent opens easily/fully.
If getting lint in the hose is of concern. Take a pair of pantie hose put one leg inside the other and attach this to the dryer exhaust. Leave enough room so it can blow out like a wind sock |