You didn't say what type or brand of dryer you have, but as a general rule, if one of the control thermostats has tripped, they are not resettable, but you can try waiting a while to see if it resets on its own after the dryer cools down.
If the dryer did trip a thermostat, the most common cause is a blockage or obstruction in the venting system. This is usually lint. Check the lint screen, and if you can, check the vent pipe at the dryer outlet (it will have to be disconnected), and also check the outlet at the final discharge point to be sure it's clear as well.
If the dryer won't re-start after about an hour or so, you may have blown a thermal fuse, in which case the only remedy is to replace it.
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You didn't say what type or brand of dryer you have, but as a general rule, if one of the control thermostats has tripped, they are not resettable, but you can try waiting a while to see if it resets on its own after the dryer cools down.
If the dryer did trip a thermostat, the most common cause is a blockage or obstruction in the venting system. This is usually lint. Check the lint screen, and if you can, check the vent pipe at the dryer outlet (it will have to be disconnected), and also check the outlet at the final discharge point to be sure it's clear as well.
If the dryer won't re-start after about an hour or so, you may have blown a thermal fuse, in which case the only remedy is to replace it.
Finally, be sure the dryer isn't overloaded.