Beware! Jebao power supply charred

  • We are currently upgrading MFK. thanks! -neo
M

matseski

Gambusia
MFK Member
Mar 30, 2014
107
12
18
United States
I had been running a DC-9000 return pump for about 7 months before the power supply died. I sent Jebao a few emails, to which I got no response (not too surprised) and have since given up on hoping to get a replacement. I decided to take it apart to see if it was just a resistor that was poorly soldered and easily repairable. The center of the board is completely charred. Luckily nothing caught fire and I had a replacement 24V power supply on hand. The power supply was in my sump cabinet which has a fan to keep air circulating and the temperature and humidity are never much different than the rest of my apartment.

If your power supply is running hot, you may want to have a backup on hand, or maybe put it in a different chassis to allow for better circulation. The stock plastic chassis allows for none.

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Seriously, lep. I'm running two dct 12000 pumps right now. They stay at half speed 24/7. I read a statement somewhere saying that the issue of heat was addressed in the dcT models. Might have been on the amazon page (?)

They were supposed to have fixed a number of problems with the new models. Kind of horrifying to see so much negative feedback about the single most important piece of my pet's life support system...

Is anyone else running dcT?

And if you dont mind my asking, how does one change the chassis?
 
I had always thought that it ran really hot to the touch. Instead of sitting it on the ground in case something were to leak, I originally stuck a piece of velcro to it so I could stick it to the wall. The adhesive failed due to the heat within a day....should have been a warning sign that something wasn't right. I then just let it dangle freely with airflow around it, but it is simply a sealed plastic box, tightly packed with electronics; it didn't help.

I'm still not sure if the board burning up was related to the heat produced by the electronics or if the soldering was bad or a component failed due to a not heat related reason. The components were all covered in a thick opaque glue so I couldn't see the problem area from the top. Nonetheless, if your power supply is running hot to the touch, consider either putting it in a different enclosure with airflow or getting a different power supply. I picked up a 240W 24V supply for $20. It has enough power to run 3 of these pumps (it was purchased for an aquarium controller and I wanted headroom in case I added a wavemaker or 2). It runs barely warm.

I should also note that I have been having some problems with the controller that outputs the PWM signal. It will occasionally fail to restart after my timer cuts the power for automatic feeding. Once my controller is done, the controller will output the PWM signal so I am not terribly worried about it, but it does add some concern to the quality of the electronics....really hoping the electronics in the pump are good...
 
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