Blowing air out ,not pulling in - Haier DE65EJ Dehumidifier

I would try writing or calling...
http://www.royalsovereign.com/customer-support/contact-us.html

A heat pump is an air conditioner that reverses its refrigerant flow. In the cooling mode, the evaporator is cold to the room and its condenser is hot. In the heating mode, a valve reverses the refrigerant flow and makes the evaporator warm and the condenser cold.

check to see if the fan is blowing across the condenser. there should be warm air blowing out the back. if there isn't, the fan may need to be replaced so the heat exchanger can cool down. may be running too hot. also check the condenser in the front to see if the air flow is blocked with dust. if so, change the filter if it has one. if there is cool air blowing, the compressor may not be turning on.

It's not unusual for a dehumidifier to blow warm air. As it may be in defrost mode. Even so, they still blow warm air.

The model number you furnished is slightly helpful. Knowing what brand it is, would be even better.

Never-the-less, the filter should be located behind the front louvers of the unit. Turn the Master ON/OFF Switch to OFF and unplug the unit. Remove the water collection bucket and look up inside the bucket holder, just behind the front louvers. You may see a plastic pull tab handle. If so, that's the filter frame. Pull it straight down and out.

If you didn't find it there, look on the right hand side of the unit, just behind the louvers for what looks like a a flip open door. If you see that, flip the door open and remove the filter.

The filter can be cleaned using a vacuum cleaner or if it's really dirty, wash it in warm water and dish washing liquid. Thoroughly rinse and allow to completely dry, before reinstalling it. NEVER operate the unit without the filter in place.

Hope this helped you. Please let me know. Thanks.

There are three things that must be working to extract water. The 'coil' (a finned metal part that allows air passage) if it's filled with dust and obstructions, no air can move...no water. There is a blower motor that mus move the air. If it is seized up an not blowing air...very little or no water. The compressor uses condensation from the air moving across its coils (like the moisture than forms on a cold glass on a humid day) to extract the water from the air. If it's not working then no water.
So, if there is air blowing out of the dehumidifier the blower is working. If the air is room temp the compressor is not working. If it's real hot air, and the humidifier keeps cycling on and off quickly, the coil is dirty. Those are the 3 things that need to be working.

Is the compressor on as well? or just the fan, if the compressor is on and fan is on and it is blowing warm air it could be a charge (refrigerant problem)

You need to determine what's "running". Here's why: There are three things that must be working to extract water. The 'coil' (a finned metal part that needs air to flow across its surface) may be filled with dust and obstructions, so no air can move...then no water. There is a blower motor that must move the air. If it is seized up and not blowing air...very little or no water. The compressor creates condensation from air moving across the coil (like the moisture than forms on an ice filled glass on a humid day) to extract the water from the air. If it's not working then no water.
So, if there is air blowing out of the dehumidifier the blower is working. If the air is room temp the compressor is not working. If it's real hot air, and the humidifier keeps cycling on and off quickly, the coil is dirty. Those are the 3 things that need to be working.

Again, if your model is one that can be used in cooler temps so as not to ice up, the heat prevents this.

If the compressor is running but no air is blowing out, then your fan motor is shot. If the fan is blowing air but you don't hear the click and vibration when you turn it on, then your compressor needs replacing. Those are the most likely culprits.

A common problem - low on refrigerant. Unfortunately it's not a simple fix. Check your warranty to see if you're still covered for "Sealed system repairs"