Here are your parts includes a wiring diagram
Replacement parts for MAYTAG PYE3300AYW DRYER- ELE | AppliancePartsPros.com

The first thing to check is the power. The motor and light both use 120 volts but the heating element requires the full 240 volts.
Try flipping the breaker off/on slowly a couple times, sometimes you can loose half the line without actually tripping the breaker.
If this does nothing, check the voltage at the plug
L1 to L2 should be 240 volts
L1 to Neutral and L2 to Neutral, both should be 120 volts.
If OK
Unplug the unit and check the wires at the terminal strip in the machine to make sure none are loose or burned out
If OK
Check the power at the terminal strip.
[COLOR="Red"]Be careful as 240 volts is lethal !!! [/COLOR]

If power is OK then unplug the unit and check the heater and thermostats using a meter.
Heater should be 10 to 12 ohms all thermostats should be 0 ohms.