The first thing to check is the fuses or circuit breakers in your home.
There are two 30 amp fuses or breakers that run the dryer.
Next check the terminal block where the core is hook in the dryer. There may be a wire burnt off.
Check the wiring in the control panel and the wiring going to the motor.
Look at the wiring diagram and see if there is a thermal fuse in the dryer.
Here is a link to your dryer model lg9209l2. | 
Dryer won't run 
