User Manual LG WXL-1014W 14kg Front Load Washing Machine

You need to download the LG ThinQ app on your phone and
then can change the favourite setting

Short answer, you can use the dark wash setting which
is preset at 20 degrees or if you prefer pick any other
cycle and then click on the grey temp button which will
go through the different temperatures, 20 degrees is
cold wash. You could also program a setting using the
app if you have compatible phone so that your
Download cycle button is your cold wash desired setting

I used the 30 min option with extra rinse made it to around
34mins, however the 1hr cycle and extra rinse wss better if
they needed a little longer to wash.

Yes it will

Wool setting is 20 degrees with is a cold wash I find this is
best for clothes that tend to fade although dark wash is
good too