Hi,Welcome to Just Answer, My name isXXXXX will be helping you with your appliance issue today.
Yes the one on the rear panel is the thermal fuse, this is very difficult to get to, you will need to take the front of the dryer off remove the belt from the pulley and release the belt then pull the drum out the front, you do this by lifting up the back of the drum to get the Bearing free from this . This is upside down in the dryer and is a ball in the back of the drum that rests in this I usually slide the belt back and give it a quick jerk upwards is usually gets the drum loops I can send you the diagrams so you can remove the front, here's the link, http://www.searspartsdirect.com/partsdirect/part-model/GE-Parts/Dryer-Parts/Model-DPR483EA0WW/0432/0151200?pathTaken= you need to take the screws out holding the top on which I think you've already done because you know where the thermostat is, if not there should be two screws when you open the door going up into the top remove those lift the top from the front and slide it out from the back, then down the side inside there will be two more Philips head screws you remove to get the front off, hope this info is helpful, thanks, Bryan
Take the two wires off of the safety thermostat and tape them together for a test only make sure that they are not hitting any metal, try the dryer, if it starts replace it, that's the only thermostat in the machine that will cause the machine to not start, and yes you need to pull the drum to get at it this is somewhat difficult from the front you need to reach in and released the belt and then do what I said in the above post usually you can just get the drum far enough forward to get the thermostat out and get at the screws, hope this helps, thanks, Bryan,
PS if the air intake was clogged that can cause it to overheat and blow the thermostat, these sometimes it weak and just blow however,
You're very welcome, 1236 was the one that's gone is that right? Does it look like this?I think Sears has that wrong what they're showing is a glide assembly for $83 for part number 1236 repair clinic if that's the part you need its $36 you can click this blue link to see the thermostats in your dryer,
http://www.repairclinic.com/Shop-For-Parts?s=t-DPR483EA0WW-%3d%3de make sure you check that before ordering I believe Sears has it on their wrong and you won't get the thermostat you will get the glide assembly, thanks Bryan