The hi-limit thermostat for the heater is 250 degrees.

With it's internal heater off (High heat) the operating thermostat is about 150 degrees.
With wet clothes in the unit you would see a lower temperature at the exhaust

Here are your parts
Replacement parts for WHIRLPOOL LER4634EQ2 | AppliancePartsPros.com

Here is the wiring diagram
http://www.servicematters.com/docs/wiring/Wiring%20Sheet%20-%203406688.pdf

I am assuming that the clothes are coming out of the washer just damp thus eliminating the washing machine as a possible cause.

The most common cause of having to use multiple dry cycles is a bad vent system (Poor air flow) so I would start there.

Undo the dryer from the exhaust
Run a load
If the load dries correctly then you have a vent problem.
Clean/check the vent system. Make sure the outside louvers open fully.

If you do not want lint in the house.
Take a pair of pantyhose, put one leg into the other and attach this to the dryer exhaust.
Leave enough room behind the dryer so it can blow out like a windsock.
Run a load.

Both the above will allow you to check the air flow and temp.

If it still does not dry properly I would recheck the heating element.
Unplug the unit and both wires to the coil.
Check it with a meter, should be around 10 ohms.
Then check from each side of the coil to the case/frame, both should be infinite ohms (open). If not the coil may have sagged or broken and is touching the case. This can cause it to run on high and the thermostats cannot regulate it.