In short, don’t use the pump I listed above. The voltage was correct, but the amp draw was too much, and if I did not check it before long-term running, it would have burnt out the circuit board.

After looking for a few days and figuring out what options I had, I found a 12v circulating pump from https://www.ussolarpumps.com that was able to pump the same amount of water as the original pump of 6kg aka 6 liters’s a min and also stay close to the Amps and not overload the circuit board. Overall, it is quiet and it does work barely; it does push the water through the mattress pad, but not enough flow to keep it as cool as the factory pump. It has kept me from having night sweats. I live in Phoenix, AZ, and summertime, so it’s better than nothing.

US Solar pumps have another B10A-24v-7L version, it costs about $50.00, so I am hesitant to purchase if I can’t find another pump. I am thinking of trying it out.

I will update the post with the direction I took.

I recently changed out the fans on my chili cube to the Noctua NF-B9 redux-1600; they are the new gray ones, and at about $10 a fan, the price can’t be beaten. They are so much quieter than the stock ones and push a little more air also. This guide helped a lot.

Side note: I did take the chili cube all the way apart and found that it uses 4 (2 on each side) Peltier coolers (Part # TEC1-12704). They each use about 12v each and, depending on manufacture, about $7 each. Keep in mind that if you remove them, reapplying a thermal paste will be needed as, for some reason, the factory-applied paste was dry on two of them. With the vast temperature change that Peltier pads can do, make sure that the paste can take the cooler temperatures. I applied Arctic Silver 5 as it is what I had on hand. I hope it works if it doesn’t will update this post.

My pump is starting to make a noise, so this weekend, I am changing it out to this 24v water pump from amazon.

I hope this post helps.