I have a upright washer and dryer frigidaire model number fex831csa and I need to check the thermal limiter and I can't get the back off... my dryer won't start

i have a upright washer and dryer frigidaire model number fex831csa and i need to check the thermal limiter and i can't get the back off ...................... my dryer wont start
I can tell you this, MOST dryers made the last 20 years are NOT designed to take off the back to work on them. You have to get the front off and do your electrical testing. Unless you are familiar with electricity and schematics, it may not be easy to find the problem.