Is there any heat at all?
If there is no heat:
1. Make sure one of the circuit breakers is not tripped
2. Make sure dryer gets 220 volts at the wall socket
3. Unplug the dryer and check the main terminal block for damage (this is where the power cord is attached)
4. Check the thermal fuse for continuity with an ohmmeter (fuse is number 7
on this diagram)
5. Check the heating element for continuity (heater is number 17 on the same diagram)
6. Check thermal cut-off for continuity (number 9 on the same diagram)
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Inexpensive multimeters (volt / ohm / amp, etc.)
Let me know what you find.