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Old 09-18-2013, 11:45 PM   #1
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Default Little brown pump stopped. :(

I have been testing my brand new first electric board. Part of my build is the little brown pump some people are using. Reviews indicated that it was perfect for me. For three days of testing its been great.

Last night I was testing and pump quit. Not sure if I killed it. Here is pic of the phone plug I used for power and the pump lable.

20130918_182408-picsay.jpg

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Old 09-19-2013, 12:01 AM   #2
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Is the power supply dead or the pump itself?

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Old 09-19-2013, 12:03 AM   #3
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Honestly no idea.

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Old 09-19-2013, 12:07 AM   #4
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your power supply is only rated at 5V, while the pump calls for 12V. It is also almost half the wattage required. May be causing some issues but I doubt the death of the pump. The power supply on the other hand may be a possibility. Do you have a multimeter? Check the votage coming off that power supply and let us know. Good luck

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Old 09-19-2013, 12:45 AM   #5
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Honestly no idea.
Get a multimeter and see if there is proper voltage coming from the power supply. This will at least give you some idea
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Old 09-19-2013, 12:46 AM   #6
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your power supply is only rated at 5v, while the pump calls for 12v. It is also almost half the wattage required. May be causing some issues but i doubt the death of the pump. The power supply on the other hand may be a possibility. Do you have a multimeter? Check the votage coming off that power supply and let us know. Good luck

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Old 09-19-2013, 12:55 AM   #7
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Quote:
Originally Posted by jakenbacon View Post
your power supply is only rated at 5V, while the pump calls for 12V. It is also almost half the wattage required. May be causing some issues but I doubt the death of the pump. The power supply on the other hand may be a possibility. Do you have a multimeter? Check the votage coming off that power supply and let us know. Good luck

Does anyone know if the DC motors on the tan pumps are blushless or steppers? I don't know much about the electrical design of DC motors (or even AC motors). But with an AC motor if you drop the voltage the motor actually pulls more current and heats up - and this can kill a motor.
Edit: Looking into a bit more there may be controls in the tan pumps so that any voltage (up to 12V) can be used - But I would expect that if the pump still runs at the same speed that a lower voltage would result in higher current which would smoke your adapter.
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Old 09-19-2013, 04:08 PM   #8
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Hmm. Ok so I need to test the adapter to see if power coming out. All I have at home is a circuit tester...one of those little light thingies. That should work to see if the adapter is working.

But, looks like I really need to find a better adapter. (Too bad I did the whole off to best buy recycling purge a few months back...sigh.) The tan pump thread didn't readily produce info on kinds of adapters, but then I started to get too depressed at all the 'buy a chugger and never look back' posts.

I love this small footprint, I love it's simplicity, and it recirc'd my test water perfectly when I didn't have it hooked up to board. (Too bad they are a 2-3 week shipment since going through Chinese customs.)

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Old 09-20-2013, 02:24 PM   #9
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Quote:
Originally Posted by jakenbacon View Post
your power supply is only rated at 5V, while the pump calls for 12V. It is also almost half the wattage required. May be causing some issues but I doubt the death of the pump. The power supply on the other hand may be a possibility. Do you have a multimeter? Check the votage coming off that power supply and let us know. Good luck

Running a motor at way less than the rated voltage can burn it out quick if it stalls under load. My guess is it was struggling to pump the load (5V will give less than 1/4 the rated power), stalled, and overheated.
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Old 09-20-2013, 04:12 PM   #10
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Running a motor at way less than the rated voltage can burn it out quick if it stalls under load. My guess is it was struggling to pump the load (5V will give less than 1/4 the rated power), stalled, and overheated.
I thought DC motors could run at different voltages, that is how you control speed on them right? If the voltage lowers then it pulls higher amps. (This I don't understand, just repeating what I have read.) So I am hoping maybe the pump tried to pull too many apps and killed the adapter.

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