My Roper electric dryer REX5634KQ1 stopped heating, but would tumble and shut off when cycle finished. I replaced the heating element the two attached thermostats. I had to use the jumper cable install with the new high limit thermostat I purchased. The dryer would still not heat. I then replaced the thermal fuse. The dryer would still not heat. I then replaced the dryer cycling thermostat. Now the dryer wont heat and when I open the door it will not shut off, keeps tumbling. HELP!! Thank you!