LG DLEC733W Manual page 18

Owner's Maintenance
Condenser
The condenser plays a very important role in the dryer's
efficient operation. It is recommended that it be cleaned
three or four times a year.
Open the condenser's cover by depressing the latching
tab with a coin, a key, or a screwdriver.
Turn the locking levers and remove the sealing cover.
Turn two more locking levers and remove the condenser
by pulling the finger hole tab on the front of the
condenser.
Clean the condenser thoroughly by running water
through the openings, from front to back and from side
to side.
DLEC733W