I can hear running water inside unit - DeLonghi PAC C120 Portable Air Conditioner

Usually in a miele dishwasher when the power does not shut off this is due to a leak condition in which the pump is trying to pump any access water due to a leak out of the unit in which the drain pump of the unit will run continueously to avoid water to come out of the sealed bottom and spill all over your floor. One of the first things that would distinguish if this were the case in your unit, would be if you could hear the drain pump running. This can also happen if you have a clog either in the drain pump or in the drain line or in the port hole where the drain pushes the water into your disposal. If you do not hear the drain pump running. As to the door latch it basicly tells the control that the door is either opened and not to turn on the cycle or closed and then to turn on the cycle and begin to wash. You can also check to assure that you have no leaks by pulling the unit out by deinstalling the unit and removeing the bottom base panel to see if there is any water inside. If you find there is no water and no clogs and you do not hear the drain pump working message me back for further diagnosis. I await your reply.
Thank you
Rick

you may hear water splashing that is because it is coming off of the condenser the part that is outside the water runs off the condenser and is forced out by the fan for as the noise could be something in or on the inside fan blade or outside fan blade as long as the water is not coming inside your house and you have enough slope on the unit you should be ok

Check whether water is flowing the flexible hose. Check the strainer attached to the hose at the machine end.

However try pouring water straight into the wash chamber and start the machine. If it works, it is the incoming water problem

Can you hear water "percolate" inside the unit? Or is it just the hot plate that gets hot? If you can hear water heating inside the unit then you probably have hard water calcium blockage. Try running 50/50 vinegar/water solution and see if that solves the problem. If no sound of water heating in the unit then the heater has gone bad. No spare heaters exist so your only alternative is to buy one on ebay or at a local thrift shop, sorry.

Basically there are holes in the base of the AC that allow water (condensation) to run out, that may be plugged, and usually you can tell by how much run-off you have on your roof, and the stain will also guide you to where to poke with wire to unclog. Best way to be sure is to take all the screws out around base of cover & lift cover off. Just watch for bees, or wasps before you do, they like to nest in there..If all unplugged & running out good but water still coming in trailer, then you may have a cracked drain pan.

You are probably hearing water running out of the unit during a defrost cycle. It runs inside a tube to the underneath of the refrigerator where it is collected in a pan and evaporated into the room by heat from the compressor fan.

Check the electrical supply to the unit but my guess would be an issue with the water flow sensor.

Usually this is a Door seal problem or a blockage between the frig and freezer compartment. There is usually a Tube that allows water from the defrost cycle to drain down to the pan beneath your unit. If there is ice, food particles, etc blocking that will cause water to enter the frig causing the mess. Listen for a fan to be running inside the freezer....if you hear none, than this may be causing the ice buildup that melts when the unit goes into defrost. If you unplug the unit, take the back panel off inside your freezer you will see coils and the ice. Leave unit unplugged to defrost the freezer and drain tube.....It should work normally when you plug it back in. If not, then you have a defrost heater or thermostat, or control board problem that needs to be checked by a technician.