Why would my dryer heat up sometimes but not each time it is turned on? Appliance Repair Questions › Category: Clothes Dryers › Why would my dryer heat up sometimes but not each time it is turned on? 0 Vote Up Vote Down Anonymous asked 9 years ago Some times the dryer will not heat up. If we change the setting on the timer it will heat up most times. Email Name Website Comment Current ye@r * Leave this field empty Your Answer Your Email Your Name Accepted file types: txt, jpg, pdf Add another file