My lg-ld450eal dehumidifier stops at 45 % and freezes up

SOURCE: My dehumidifier LG LHD 45 EL runs, but does not

Hi,
Here is a tip that I wrote about that problem...

http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

SOURCE: My new LG "ld450eal" DeHumidifier

The switch that says 'Bucket is full' is not adjusted properly.
It will need to be adjusted, normally a screw driver or pliers,
so that when its empty the switch is not made or the contacts
are open.
If it is in adjustment properly, then the switch is bad and needs
replacing.
Before you replace it, check to make sure the wires leading to it
are not touching, it may be sending a signal meaning 'full' by
electricaly touching each other at the switch.

SOURCE: my dehumidifier keeps turning off

The most common problem is that the humidity extraction level is set to high. Set it to it's lowest setting. If you have an LED screen on your unit, the lowest setting will probably be 35%. Or in the case of no LED screen, Minimal will be the setting you want to use.

Since you're using a drain hose, I assume the unit is in the basement. If that's the case, the ambient air temperature at floor level, may be to cold for the unit to operate properly. Most dehumidifiers struggle at air temperatures between 40 and 60 degrees F. Try placing the unit up off the floor on something sturdy that can handle the weight (including a full tank of water) and the vibration during operation.

Hope this helped you trouble shoot and solve the problem.Please let me know. Thanks.