COR 20 Power Supply

[Jeffcb]

I have 2 Neptune COR 20 DC pumps.

Last night my ATO alarm sounded and the sump was making serious noise. After inspection I shut the alarm off and went back to bed.

Turns out that the left pump is running some what slower. The right pump is about were the both normally run. The controllers are both lit up and operating showing 100% capacity but the left has clearly slowed down significantly. I did try switching the power supply's around on the 2 different controllers and Bingo! It still lights up and runs the pump but not enough wattage to run it at full speed I guess.






Started a claim with Neptune. I did get a generic email showing how to test a Power Supply. They are out of warranty. After talking with my LFS were I got them he states Neptune has had Power Supply problems. He has had to replace several in the last few months and even one last week.

Has anyone else had this problem with power supply's?

I have lost 3 Power Supplies on the last 2 years on Red Sea LEDs. Red Sea was kind enough to send me a 2 pack on each claim so I have back ups.....lol

 

[Jeffcb]

Update

Even out of warranty an Apex rep call me today and is shipping me a new Power supply. At first they wanted to logon to Fusion but I explained it had to be the power supply since I switch them back and forth between the 2 controllers...

He said they normally fail from over heating and asked how mine were mounted.

Mine are tie wrapped on a controller board. He suggested a fan and or spacers between the wood and the transformer. I guess wood doesn't dissipate heat. I mounted them like this because I wanted a nice clean set up but it may be the problem.

Anyway, thanks Apex!

 

[iamacat]

I have 2 Neptune COR 20 DC pumps.

Last night my ATO alarm sounded and the sump was making serious noise. After inspection I shut the alarm off and went back to bed.

Turns out that the left pump is running some what slower. The right pump is about were the both normally run. The controllers are both lit up and operating showing 100% capacity but the left has clearly slowed down significantly. I did try switching the power supply's around on the 2 different controllers and Bingo! It still lights up and runs the pump but not enough wattage to run it at full speed I guess.






Started a claim with Neptune. I did get a generic email showing how to test a Power Supply. They are out of warranty. After talking with my LFS were I got them he states Neptune has had Power Supply problems. He has had to replace several in the last few months and even one last week.

Has anyone else had this problem with power supply's?

I have lost 3 Power Supplies on the last 2 years on Red Sea LEDs. Red Sea was kind enough to send me a 2 pack on each claim so I have back ups.....lol

Yep. Had a Cor20 power supply go bad 1yr in. Neptune got me a replacement and no issues since. I now have 2 back up Cor20 because I don’t want to experience the situation again. If you have the money, back up return pumps are a nice piece of mind, same as heaters

 

[Robinson]

This one will work perfectly fine, but you will have to do some DIY as the tip plug diameter is bigger. You have two options: buy a tip deducer or cut the factory tip wire and attache it to the new power supply. Also attached is a tip kit that works with the COR controller.

BINZET 24V 5A Power Adapter - Transformers - Switching Power Supply Transformers for LED Strip Lights/Router/Security Camera/Output 120W Max with 2.1mm x 5.5mm https://a.co/d/apn5iMh



ZYAMY 10pcs DC Power Adapter 5.5x2.1mm Female Jack to 3.5x1.35mm Male Plug Electrical Socket Adapter Plug Converter https://a.co/d/h0b0eke

 

[Jeffcb]

This one will work perfectly fine, but you will have to do some DIY as the tip plug diameter is bigger. You have two options: buy a tip deducer or cut the factory tip wire and attache it to the new power supply. Also attached is a tip kit that works with the COR controller.

BINZET 24V 5A Power Adapter - Transformers - Switching Power Supply Transformers for LED Strip Lights/Router/Security Camera/Output 120W Max with 2.1mm x 5.5mm https://a.co/d/apn5iMh



ZYAMY 10pcs DC Power Adapter 5.5x2.1mm Female Jack to 3.5x1.35mm Male Plug Electrical Socket Adapter Plug Converter https://a.co/d/h0b0eke

That was what I was going to do if they didn't send another. In fact that one is 120 watt. Apex only 100

 

[Robinson]

That was what I was going to do if they didn't send another. In fact that one is 120 watt. Apex only 100

Get one anyway, apparently the PS is the weakness of the COR pumps. I keep a couple of this around as I can used them for other equipment's too.

 

[chimbo84]

Mine just went bad today after only four months. What gives and why haven’t they fixed this? It’s been a long term issue and makes me concerned for my other Neptune equipment.

 

[Rovert]

Just got this problem myself. Powered down my COR20 to feed, and got a VOLT error. Ordered one of these from Amazon but the power plug is a larger diameter. Any reason I can't cut the leads and swap them out to get the return pump running again?

https://a.co/d/jjhmov3

 

[Jesse Sunday]

Sorry to revive an old thread, but I wanted to share this in case others run into COR power supply issues.


Long story short, I did a water change yesterday and, just like @Rovert, when I powered the COR back up, I immediately got the VOLT error.


What I found interesting is that the power supply that failed (an Amazon CJ-2460) was pulling about half the wattage of the replacement I installed. The replacement is a genuine Neptune power supply that I had sitting in the box as a spare while waiting for the Amazon unit to eventually fail.


After installing the Neptune supply, I also noticed a significant increase in flow. My FS-100 was previously reading around 250–260, and now it’s showing over 400.


I’ve ordered another CJ-2460 from Amazon to keep as a backup in case this new supply fails down the road. I’m curious to see whether performance drops immediately after swapping back to the Amazon supply or if it degrades gradually over time. I’ll report back if I notice any changes.

 

[Tcook]

These power supplies are like eggshells. I’ve had numerous ones fail, neptune and amazon (120w 5 amp). I have a low voltage again for the Cor 20 on my skimmer. Was about to try this other one from amazon https://a.co/d/0hpaY7zi instead of the $19 ones but maybe I should go with the OEM.

Does everyone turn the head unit off by holding the left button for 3 seconds before unplugging the power supply?

 

[Jesse Sunday]

These power supplies are like eggshells. I’ve had numerous ones fail, neptune and amazon (120w 5 amp). I have a low voltage again for the Cor 20 on my skimmer. Was about to try this other one from amazon https://a.co/d/0hpaY7zi instead of the $19 ones but maybe I should go with the OEM.

Does everyone turn the head unit off by holding the left button for 3 seconds before unplugging the power supply?

Mmmm, no, whenever I power the COR off, it's 99% of the time by killing the EB outlet. During feeding, I just set the output to 1%. What's the reason for powering it down before unplugging?

 

[BryanM]

When I had redsea LEDs, man those power supplies got hot.

I think its ridiculous to fix the issue with a fan... While it probably works, its another power sucking entity under the tank, and it almost certainly is audible.

 

[Tcook]

Mmmm, no, whenever I power the COR off, it's 99% of the time by killing the EB outlet. During feeding, I just set the output to 1%. What's the reason for powering it down before unplugging?

When I was troubleshooting the recent failure I looked to see if there was a way to reset the control module like you can with MP40’s and found a details on shutting down the Cor control module. Since I have had one fail in the past after plugging the power supply I thought maybe that could be an issue. Possibly with the cheapo ones.

 

[Jesse Sunday]

When I was troubleshooting the recent failure I looked to see if there was a way to reset the control module like you can with MP40’s and found a details on shutting down the Cor control module. Since I have had one fail in the past after plugging the power supply I thought maybe that could be an issue. Possibly with the cheapo ones.

Hmm, interesting! I'll try that next time I need to shut it off completely. Thanks!