Question about your response to, "i have a whirlpool dryer and it takes 3 cycles to dry a large load of clothes."

A fairly common problem! The official instructions are

Before using your dryer, wipe the dryer drum with a damp cloth to
remove dust from storing and shipping.
1. Load clothes loosely into the dryer and close the door. Do not
pack the dryer. Allow space for clothes to tumble freely.
2. Turn the Cycle Control knob to the recommended cycle for the type of load being dried. Use the Energy Preferred Automatic Setting (,) to dry most heavyweight and medium weight loads. See "Drying, Cycle, and Temperature Tips."
3. Select a temperature setting on models with a Temp/Fabric selector. The cycle descriptions include temperature setting suggestions.
4. Push the START button.

Stopping and Restarting
You can stop your dryer any time during a cycle.
To stop your dryer
Open the dryer door or turn the Cycle Control knob to OFE
NOTE: The Cycle Control knob should point to an Off area when
the dryer is not in use.
To restart your dryer
1. Close the door.
2. Select a new cycle and temperature (if desired).
3. Press START

Extracted from
http://www.manualslib.com/manual/511763/Whirlpool-Lte5243dq.html?page=10#manual

its not the vents its the dryer. have the coil checked and the thermis .

There maybe an air flow issue. With the dryer on check the air flow from the exterior location of your home. There should be a good flow of warm/hot air coming out. If not the inside of the dryer may be full of lint.

Dryers not getting hot at all.

Hi, The first thing to check is the venting to the outside. Make sure it is free of lint and that it is not pinched at all.
If this is a gas dryer, there could be a problem with the coils on top of the gas valve.
Please let me know if I can assist you further.

Vic

Check the lint trap all the way down to vent, then make sure that the vent is not crushed in anyway. Depending on the way the person cleaned it they could have actually caused more of a clog

is this a washer or dryer if its a dryer you need to check the air flow where the dryer vents outside the house make sure it is flowing good it may need to be cleaned out

I am online looking for an answer similar---our dryer doesn't heat....air comes out lukewarm and will not dry after 2-3 cycles.

have you checked your lint trap to make sure that it is clean after every load? Also the lint vent to the outside may be clogged and will not let the dryer vent like it should. This is dangerous. So check and replace if needed.

Hello dreas15

I need more information.
What's the model number.
How old is it? Today's dryers have electronic ignition.
Waiting for your response! I will respond right away!
Huuum