Question about DeLonghi DE500 Dehumidifier

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Internal pum hose connection?

My drain hose was clogged so I took it apart, cleaned the hose, cleaned the connector at the bottom of the machine. Now the pump does not pump so the tank fills. I pulled the tank and the upper end of the clear hose is not connected to anything and I can not see any fitting for it. Any assistance is most appreciated.

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I just fixed the same problem on my DE-500P. The pump filter was blocked and there was a layer of scummy lint-like stuff in the bottom of the pump reservoir (not the main - or overflow tank) also blocking flow down through the filter to the pump. Repair steps are as follows:

1. Remove the overflow water tank and the two side covers (five screws in each). Note that as you go through the removal of all the covers and other procedures, there are two lengths of screws; don't switch them. If you lose track, the rule of thumb is use the short screws for going through a single layer of plastic into metal.

2. Remove the rear cover (take out the screws along the bottom and on the sides). It will still be attached to the front top cover at the top with tab fasteners. Gently pull out the bottom of the cover while depressing the top of it on both sides with your thumbs (about an inch and a half inside the trim ridges) to clear the tabs. Ease the top part of the cover back and remove it (it will have to tilt to one side, don't forget this when putting it back on).

3. Remove the top cover, not forgetting the two screws on top by where the back cover attached (go gently, there's a wiring harness) and turn it to the side. There was enough slack to leave the wires connected; just be careful to not damage them.

4. The filter looks like a small transparent in-line gas filter. Remove the pump filter, leaving the short tube attached to the top of it. I quickly atttached a length of tubing to drain the reservoir into a bucket. I couldn't find a replacement filter, so I filed a slot in the side of the bottom half of it to remove the gunk using the wire from a twist tie (the upper half had some tabs inside that would have been in the way). Afterwards, I wrapped it tightly with stretchy electrical tape and put a wire tie over the tape at the slot to keep the tape from being able to creep loose over time. Don't use a fuel filter, the paper element is too fine (you need a screen) and the paper will fall apart in water.

4. Remove the float and bracket from the pump reservoir. The reservoir screws are not all apparent; there's also a screw way over on the left and one coming in from the right. I used a 12 inch #2 phillips screwdriver with a magnetized tip for most of this. Remove the pump reservoir and clean out the scummy stuff in the bottom and where the tubes attach. When removing the reservoir, you'll have to detach the vent line that goes through the bulkhead to where the big tank was and pull the tab above it down slightly while easing the tank out.

5. Clean out any dirty tubes, paying particular attention to the coupling for the drain hose and the long drain hose itself.

6. Put the reservoir back in and hook up all the tubes and filter. It does make a difference in which direction the filter goes back in. You want the water from the reservoir to go through the filter from the outside of the little screen; that leaves the maximum room for crud build-up before it plugs up the screen again.

7. Depending on your confidence level, at this point you may want to plug in the dehumidfier, put the overflow tank in, turn it on, turn on the pump, and fill the pump reservoir to check for functioning and leaks. If you do this, just remember that the circuits are hot and not all are insulated.

8. If all is OK, unplug the dehumidifier and put the covers back on. Total time was about an hour.

Posted on Aug 30, 2008

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The problem you're experiencing can be caused bu 2 things: The drain hose is clogged or to long or the inner drain tubing to the hose connection is clogged.

The drain hose clog is is easy to solve. However, the inner tubing clog takes a little more effort.

First turn the unit OFF & unplug it. Disconnect the drain hose. Using an appropriately sized, 18" long, plastic Zip Tie, carefully insert the tip of Zip Tie into the hose connector hole and inner tubing. Continue to push it in until you reach a bend in the tubing. You will need to gingerly work the Zip Tie past this bend, until it either bottoms out or you run out of usable Zip Tie. Then slowly pull the Zip Tie back out while rotating (twisting) it. This will breakup any clogs. As you reach the inserted end of the Zip Tie, be prepared, as some water may follow.Reconnect the drain hose, plug the unit in and turn the Master ON/OFF Switch to ON. Set the humidity extraction level to 35% or Maximum if you have a manually controlled unit. Allow the unit to run, while you monitor the hose end for water flow. be patient as it may take 5 to 10 minutes to start flowing.

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No need to take the unit apart. The "gunk" or clog is he inner tubing of the hose connection.
To solve the problem, do the following:

Turn the unit OFF, unplug it and disconnect the hose.

Using an appropriately sized, 18" long, plastic Zip Tie, carefully insert the tip of Zip Tie into the hose connector & tubing. Continue to push it in until you reach a bend in the tubing. You will need to gingerly work the Zip Tie past this bend, until it either bottoms out or you run out of usable Zip Tie. Then slowly pull the Zip Tie back out while rotating (twisting) it. This will breakup any clogs. As you reach the inserted end of the Zip Tie, be prepared, as some water may follow. Reconnect the hose, plug the unit in and turn the Master ON/OFF Switch to ON. Set the humidity extraction level to 35% or Maximum if you have a manually controlled unit. Allow the unit to run, while you monitor it for any leakage.

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The problem you're having is generally cause by the drain hose or drain hose connection being clogged. When that happens water is diverted to the bucket. To solve this problem do the following:

First disconnect the drain hose for clogs to check for a clog.. Also, the hose should be no longer than 5 feet. If the hose is clear, the clog is in the hose connection or tubing.

Using an appropriately sized, 18" long, plastic Zip Tie, carefully insert the tip of Zip Tie into the hole or tubing. Continue to push it in until you reach a bend in the tubing. You will need to gingerly work the Zip Tie past this bend, until it either bottoms out or you run out of usable Zip Tie. Then slowly pull the Zip Tie back out while rotating (twisting) it. This will breakup any clogs. As you reach the inserted end of the Zip Tie, be prepared, as some water may follow. Reinstall the bucket, plug the unit in and turn the Master ON/OFF Switch to ON. Set the humidity extraction level to 35% or Maximum if you have a manually controlled unit. Allow the unit to run, while you monitor ithe hose for drainage.

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The problem you're facing is either a clog in the drain hose or a clog in the hose connector's tubing.

The drain hose is an easy one to insect and clean, if necessary. For the hose connector tubing, you need to do the following.

Turn the unit OFF & Unplug it.

Using an appropriately sized, 18" long, plastic Zip Tie, carefully insert the tip of Zip Tie into the hole or tubing. Continue to push it in until you reach a bend in the tubing. You will need to gingerly work the Zip Tie past this bend, until it either bottoms out or you run out of usable Zip Tie. Then slowly pull the Zip Tie back out while rotating (twisting) it. This will breakup any clogs. As you reach the inserted end of the Zip Tie, be prepared, as some water may follow.Reconnect the drain hose, plug the unit in and turn the Master ON/OFF Switch to ON. Set the humidity extraction level to 35% or Maximum if you have a manually controlled unit. Allow the unit to run, while you monitor it for drainage thru the hose.

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I have a new Frigadaire dehumidifier , 50 pint, which I have connected to a garden hose to be emptied into a drain in our basement. So far, after, two weeks, it fills up with water and we have to...


I'm really surprised that Frigidaire didn't know what the problem was. The drain tubing at the hose connection is clogged or the hose itself is clogged. When this happens, water is diverted to the bucket.

First, turn the unit OFF & unplug it.

The hose clog is easy to solve. Simply remove the hose and either look thru it for light at the other end or blow through it. Make sure the hose is no longer than 5 feet.

To clear a clog in the drain hose connector, you will need an 18" long plastic Zip Tie or something similar (NO wire coat hangers, though) that is appropriately sized to fit in the hose connector tubing.

Carefully insert the Zip Tie and continue to insert it, until you reach a bend in the tubing. You will need to gingerly work the Zip Tie past this bend, until the Zip Tie bottoms out or you run out of usable Zip Tie. Slowly remove the Zip Tie while rotating (twisting) it. This will dislodge any clogs. As you each the inserted end of the Zip Tie, be prepared for some water to follow.

Completing the above, should solve the problem. Then call Frigidaire and tell them how to solve the problem.

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Turn the unit OFF and unplug it. Using an 18" long plastic Zip Tie or something similar (NO wire coat hangers, though, carefully insert the Zip Tie into the hose connector tubing, Continue to push it in, until you reach a bend in the tubing. You will gingerly have to work the Zip Tie past this bend, until the Zip Tie either bottoms out or you run out of usable Zip Tie. Then pull the Zip Tie out slowly, while rotating (twisting) it. This will dislodge any clogs. As you reach the inserted end, be prepared for some water to follow.

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1. Turn the Master ON/OFF Switch to OFF and unplug the unit. Disconnect the hose from the unit
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2. If no clogs were found in the hose, the clog is in the hose connection tubing. Use and 18"
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it in until you reach a bend in the tubing. You will need to gingerly work it past this bend, until
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Steeve

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