I've just recently experienced the same problem with our dehumidifier. It's now blowing cold air and no longer collecting water. I'm assuming the heating element has failed. I'll post again to confirm whether replacing this part fixes the issue.
A bit of a delay in posting back, but I can confirm that replacing the heating element was the right fix for me. Upon inspecting the old one once removed, you could see some of the veins had corroded and broken.A bit of a delay in posting back, but I can confirm that replacing the heating element was the right fix for me. Upon inspecting the old one once removed, you could see some of the veins had corroded and broken.
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A dehumidifier is the same thing as a window unit air conditioner that you sit on your kitchen floor instead of installing it into a window. It will blow cold air out one side (evaporator side) and hot air out the other. (condenser side) Hot/Cold cancelling each other out, (plus a little bit of "extra" heat from running the thing) yet the evaporator STILL removes humidity from the air in the form of a puddle of water on your kitchen floor. They (air conditioners & dehumidifiers) are both essentially air conditioners only difference being is that in order to "cool" an area, the "condenser," or "hot" air would have to be moved outside somehow. Air conditioners do not "cool" air, per se. Instead, they ABSORB & MOVE HEAT from one place to another via some type of gas (freon) and a compressor pump inside of a closed tubular system. (copper,brass,aluminum, etc)
I understand your Frigidaire dehumidifier, model# LAD704TDL, is not dehumidifying. I also see that it is blowing hot air, no water is coming out of the hose, and the humidity stays at 80%. I suggest contacting the manufacturer directly, to see if your appliance is in warranty, and they should be able to point you in the right direction. Hope this is helpful.
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.
It is normal for a dehumidifier to discharge warm air. A dehumidifier is really an air conditioner - a fan blows humid room air across a cold fin coil that causes the moisture to condense on it and drip into a container - thus cooling AND dehumidifying the air. The cool air is blown over the warm coil and discharged out the back. A dehumidifier WILL normally increase the temperature of the room it is in. You can do the same thing with sitting an A/C unit on a stool in a room. Room air will be drawn in, cold air will come out the front, hot air out the back and water will drip on the floor. And, the room will get hotter, due to what is called "heat of compression" even though you're running an A/C unit.
I suspect that the dehumidifier coil, the section that gets cold, is clogged up with dust or dirt and this is why it is not working properly. Do not continue to run it this way or you could burn up the compressor!
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.
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"
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