Water goes in reservoir, not thru hose to sump pump, leaking

If you reconnect the drain hose, make sure that it lays flat from the dehumidifier and into the sump pump hole. I did that and it solved my problem of water leaking onto the floor.

Clogged sensor with a mud. Clean it

Check the float valve in the top of the bucket. It may be stuck in the UP position. If that the case, jiggle the float valve arm to get it to return to the DOWN position. That should solve the problem.

Check to ensure the hose is connected to the outlet of the pump correctly.

Do you use a hose with your dehumidifier? Could it be leaking? I have two machines in my basement. I use hoses on both. I had to do funny stuff to make the hoses not leak on the plastic 'blown' tanks. Even the cap that originally came with the machines were leaking before I started to use the hoses.

Check for holes in the tank as well.

Check the hose for clog up as well as your sump pump. Have your hose unclogged and let it run. Check the sump pump if this is running. And if it is, and still no water goes out. Open the sump, and check the impeller for defect. Impeller is the one that turns around to push the water out. If it is defective, you must replace it to make it run.
Once you are done, power it up and start it.

I don't have the exact dehumidifier as yours, but on mine it's as simple as removing the hose, then the water fills the reservoir. Does it look like yours will do the same? If so, the hose fitting is also a sensor that will shut the unit off when it is full to avoid leaking onto the floor.

Clean the hose (it's full of black gunk)

Hi, had the same problem. Not a glogging one. I have the model DDR503H. If it is insisting on filling the reservoir, it is because you haven't put the cap you removed from de back of the unit to plug the hose on the tank water exit. You have to first remove the tank and on the roof of this space, you will see the water tank exit where you can screw the cap removed from the back. You place back the tank into the unit and now the water won't have other choice then leak thru the hose. Also. to clean up the filter, I don't need to unscrew the top cover. I just remove the tank and on the roof of the space, there is a grey handle with arrows on it and I just pulled down, it comes out and you can then clean it up.

Hope this help,

Steeve

Most units have a drain connection, either on the machine itself, or in the collection pail. These connections usually fit standard garden hoses.