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Pump blinking - De'Longhi Dd30p 30 Litre Portable Dehumidifier With Pump System

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Pump light is blinking


ck your water pump and hoses , the light is telling you it has sensed a problem

Sep 12, 2015 | DeLonghi DH40P Dehumidifier

1 Answer

After running for awhile the pump light starts blinking and the drain tube is not bent ?


Sounds like the plumbing is obstructed somewhere, try looking upstream as well as downstream of the pump. A very small piece of crud can cause a clot or embolism in the narrow channel. You might try blowing out the system with compressed air, but beware of getting showered with dehumidifier crud!

Jun 25, 2015 | DeLonghi DE500P Dehumidifier

1 Answer

Beeping tank warning light blinking, pump light not on


I think this means your pump is not working, and therefore the tank is full. The pump could just be switched off, could have failed, or could be clogged. See the other messages regarding this model, for an excellent description of how to clean out a clogged pump.

Oct 02, 2014 | DeLonghi DE500 Dehumidifier

1 Answer

Can't turn off blinking pump button. Do not want to use pump at all.


Sounds like an intermittent pump control button, keep trying and you might get it to switch. You could also try disconnecting entirely from power for a few hours, then plugging it in. I think that the humidifier power-up default is with the pump disabled.

Jul 24, 2014 | DeLonghi DE500P Dehumidifier

1 Answer

Exclamation sign blinking


More information is needed such as make and model to solve your problem. Start by checking to be sure there is no water in it.

Mar 15, 2014 | Dehumidifiers

1 Answer

I have an whirlpool gold ad50gpusb from canadian tire. The pump will no longer pump via the clear rubber hose and instead the water accumulates in the bucket. Do you know if there is a simple fix to...


For the others who follow

I have the same model, same problem on a 2 year old purchase made in 2014. This unit has a pump (and a hose) to drain the condensate.

The pump light started blinking about a week ago, turning cycling power worked for a while, until pumping stopped altogether.

After investigating:
-the hoses are not blocked but there was some algal growth in the tray which I cleaned
-the pump no longer pumps.
-my favorite parts suppliers and other on-line sources have no record of the model/parts etc.
-Called "whirlpool" consumer line in manual
-Whirlpool has been purchased by Garrison and that company has no parts for this discontinued model but did provide a phone number for the pump 800-799-0991. Unfortunately the cost of this small solenoid pump is $74.

I will drain the condensate via gravity to a floor drain as I don't see spending that much for something that broke so quickly and appeared poorly made..

Sep 24, 2013 | Dehumidifiers

1 Answer

Kenmore Dehumidifier 129-25803, Pump System malfunction


I also have a Kenmore pump system 129-25803 but I do not have the manual. I have tried to find one online but to no luck. I also called the Sears Parts & Service and they do not have a listing for this type of dehumidifier. Just wondering if you have a manual you could share? Please email me at taylor005@eastlink.ca

Jul 26, 2010 | Kenmore Dehumidifiers

3 Answers

My zenith zd309 light keeps blinking but the water


If the unit is titled forward at all, the "full bucket" "trip switch" will not trigger off as it should. Be sure the unit is on a flat, level surface, or leaning backward slightly--this also aids drainage through the drain tube, if that's your set-up.

Jun 07, 2010 | Dehumidifiers

4 Answers

Pump not pumping


It's not a one way valve, it's a water strainer. It has a barrel with a fitting on each end, the upper leads into the barrel, the lower has a strainer tube attached. When it's plugging up, it seems like a one-way valve because when you try to force water into the top, it pushes the lint and junk against the strainer screen, blocking it. When you try to force water in from the bottom, the water pushes the lint away from the screen, allowing a reduced flow. Some have an arrow; it's to indicate flow direction to keep the lint on the outside of the screen; the inside, being mush smaller than the barrel, would plug up much sooner. Before you replace the strainer, clean the lint & stuff out of the small pump reservoir (above the pump). If you don't, the strainer will plug up quickly again, if it can even get water to it.

Jul 02, 2008 | DeLonghi DE500P Dehumidifier

2 Answers

Pump failure


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.

Jun 26, 2008 | DeLonghi DE500 Dehumidifier

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