whirlpool electric dryer model ler4634jqo not heating up everything has been replaceed on it still no heat motor runs great air flow out the vent hose just no heat???
Here is your wiring diagram.https://s3.amazonaws.com/sm-backend-production-attachments/wiringsheet-3406688-reva.pdf. Have you made sure you have 240 volts at the terminal block at the back of the dryer where the power cord goes?
It sounds like the thermostats, motor, and timer have all been replaced. With that in mind, has the voltage supply to the dryer been checked with a multimeter? If the L2 leg of the 240V supply is lost—often due to a tripped circuit breaker—the dryer will run but won’t heat.
There are a few things you can check, and this video provides a good reference for testing voltage at the dryer:
