My Haier Chest Freezer started releasing water from underneath. It´s 2 years old

check thermostat, or relay on one side or back cclose to the compressor area there is a removable lid. removed and look for a thermostat disconect the 2 wires and bridge them then plug the the freezer on if runs replace the temp thermostat for a new one should be freezer thermostat

Oil in the evaporator. It may come back if you leave it running for a few days, but usually needs flushing out.

http://www.manualsonline.com/

I’m happy to assist further over the phone at https://www.6ya.com/expert/david_dc2f9e0a44104720

http://www.managemylife.com/mmh/owner_manuals/1018/HAIER-Chest-Freezer-L0501492

I found the manual at the above link. The Haier freezer models include:
HCM036PB
HCM045PB
HCM050PA
HCM073PA

defrost cycle is innactive, will ice up shortly and may not turn compressor off, defrost the unit totally(Turn off for 2 days with door open) and remove all water from the unit once done. Restart unit and should work normal for a week or so, ie...defrost cycle...get back to me if this is the case and will sort it from there, [email protected] Russ

Try turning the thermostat down to O and then back to max a few times this may free a stuck bimetallic strip. If this doesn't work and assuming you haven't damaged any components in some way then all that may be required is a new thermostat.

You have to remove all the food to a good ice chest with no ice. Pack it as full as you can before starting another one. You may need to put some in your refrigerator freezer. It will stay frozen for several hours while you melt the ice in the chest freezer. You can direct a fan blowing into it to speed up the melting. If it doesn't have a drain to catch the water in a tub you'll have to soak the water up in a towel etc. Don't chip at the ice to break it up quicker. You can damage the refrigeration coils.

This is likely a manual defrost freezer, which means you have to remove the food, unplug the unit, and let the ice melt on its own. Do not, and i repeat, DO NOT poke the ice away from the walls. I guarantee if you poke the ice away from the wall, you'll poke a hole in the wall, and force yourself to buy a new freezer.

SLOWER IS SAFER. put some boiling water, in the pot, inside the freezer, or use a hair dryer.

Have you cleaned the coils underneath or in back of the unit?

Do not put a towel on your freezer or anything that could prevent a good seal from top of freezer.
jim