Just fixed this problem with my DES14. Its a fault with the circuit board inside the machine and is very easy to fix, even for a novice. Here is how to do it:
1) Open up the machine by removing the screws in the case. (Make sure it is unplugged!)
2) Locate the circuit board on the side of the unit.
3) At this point you have two options. If you want a unit with full functionality you need to buy a replacement circuit board. I found one on MasterSpares (http://www.mastersparesonline.com/product/index/10147) It costs about 30 pounds. Simply remove the old board and replace it.
4) If you want a working unit for no extra cost (but without the functionality of the humidistat) then remove the rectangular white connector from the circuit board which has red,blue,white and yellow wires entering it. Add an extra wire between the central white wire and the red wire that is adjacent to the yellow. (see photo).
5) Re-assemble the unit. If you have opted for the free option the unit will work when you plug it in and switch it on but will no longer cut in and out with different humidities (or have the annoying warm up period). Thankfully the water overflow cut-out will still work.
Hope it works for you! Feel free to ask if you are confused!
perfect thank you ,. my middle wire was black,. but still worked, the water bucket is filling up again,.
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SOURCE: DeLonghi 50 Pint dehumidifier DE 500P won't turn back on
If it is not responding when you try to activate the shutoff button and are still not recieving an acknowledgement that the bucket is full you may hav a defective shutoff button. Try contacting the Manufacturer and see if you can purchase just the button. This i a common part and the price is usually reasonable. If you feel very technical inclined you can remove the button and touch the 2 wires together simulating a closed contact. The dehumidifier should now acknowledge the bucket is full. If you recieve the notification then the button is bad. If you found this solution helpful please rate it.
Thanks - Tech101
SOURCE: DE400 dehumidifier
Go to site...
safemanuals.com/references.php
in top search box show user manuals
go to search data base find delonghi- then type in de400 humidifier
then download
SOURCE: Dehumidifier Error?
Same problem with Goldstar model DH404EY7 -- stop code 01 on startup, bucket full light blinks (drains to floor).
Replaced the main controller board to fix it.
For my model dehumidifer the part # is 6871A20888A, and cost $77.44 (not counting shipping) from Appliance Factory Parts. The Appliance Factory Parts web site also provides parts breakdown (exploded parts diagram) diagrams and service manuals in PDF form.
SOURCE: delonghi de400p dehumidifier does not work
if comp and fans running your out of freon or the compressor is not pumping more than likely out of freon and that means theres a leak in the sealed system high cost repair
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