Fan Issues

What's up, so I bought this marine grade inline fan offline that pushes 240 cfm. It is listed as a 12v dc fan. I connected it to a 12v dc power supply that I have and once energized the fan will spin for a second then die, and repeat this process over and over. The fan never fully turns on. Any ideas? Seems like it's not getting enough juice. Any help would be appreciated.
Here's the fan
http://m.overtons.com/modperl/product/details.cgi?i=70750

Is your source a battery? Or a converter? How are you connected to it?

Please dont take that condescending just want to start at firstbsteps then work forward

Huckster79 said:

Is your source a battery? Or a converter? How are you connected to it?

Please dont take that condescending just want to start at firstbsteps then work forward

Click to expand...

No offense taken, I'm using a 12v dc power adapter, plugs into wall. Very commonly used for pc fans. Thanks

Is the only wiring the wires that came factory attached to fan? Im no dc expert just trying to think it through with ya.... is there an amperage rating on it? Could it possibly b 12v dc but a lesser amp than this particular fan needs?

Could be a bum fan too...

Huckster79 said:

Is the only wiring the wires that came factory attached to fan? Im no dc expert just trying to think it through with ya.... is there an amperage rating on it? Could it possibly b 12v dc but a lesser amp than this particular fan needs?

Could be a bum fan too...

Click to expand...

It says it draws 3.5 amps. I'm not sure how many the power adapter is rated at. I'm going to be pissed if it's a broke fan because I waited like 2 weeks for this shit.

I am thinking you're onto the right track with the amp thing though. I doubt my adapter is rated at 3.5 amps.

12V x 3.5A = 42W, is going to be bulky transformer, I'd get one rated for at least half more.

ANC said:

12V x 3.5A = 42W, is going to be bulky transformer, I'd get one rated for at least half more.

Click to expand...

I know you're most likely right, but fuck! I don't want some bulky ass power supply. This is supposed to fit inside my small grow box. Even if I could find a 12v dc power supply rated to push 3.5 amps, that still wouldn't work?

A pc power supply would get the job done.

MonkeyPickAss said:

A pc power supply would get the job done.

Click to expand...

I'll check my old laptop power adapter when I get home. Thanks for the idea

No, like a full size pc power supply.

Some laptop supplies are 12V and 3.5A, but I don't like driving componments to their limits.
Get a 5A wall wart, it will do the job.

MonkeyPickAss said:

No, like a full size pc power supply.

Click to expand...

Thanks but that's too big.

ANC said:

Some laptop supplies are 12V and 3.5A, but I don't like driving componments to their limits.
Get a 5A wall wart, it will do the job.

Click to expand...

Meanwell LPV-60-12 Sealed Panel Mount LPV Series AC-DC 12-volt 5-Amp Power Supply. Just ordered one from Amazon for 16 bucks. Should be here Friday. Thanks for your help.

Huckster79 said:

Is the only wiring the wires that came factory attached to fan? Im no dc expert just trying to think it through with ya.... is there an amperage rating on it? Could it possibly b 12v dc but a lesser amp than this particular fan needs?

Could be a bum fan too...

Click to expand...

You hit the nail on the head. The 12v power supply I have it hooked up to pushes a whopping 1000ma lol. I will now know to check both voltage and amps in the future. Thanks

HazednConfused said:

Meanwell LPV-60-12 Sealed Panel Mount LPV Series AC-DC 12-volt 5-Amp Power Supply. Just ordered one from Amazon for 16 bucks. Should be here Friday. Thanks for your help.

Click to expand...

Make sure you have an extra plug on hand and a way to tie the wires together. I think you made a good choice on the power source.

MonkeyPickAss said:

Make sure you have an extra plug on hand and a way to tie the wires together. I think you made a good choice on the power source.

Click to expand...

Yeah, I got a couple plugs and wire caps laying around that I plan on using. Figured I couldn't go wrong with a meanwell, and hoping I didn't go wrong, lol. Thanks for reassurance.

Glad we could help, theres not a one of us that hasn't overlooked things before. Thanks for not taking it condecending when I asked the first really basic questions, some folks do. I just know I've tried figuring out what I thought were complex problems only to find out it was the most basic thing that hung me up.... Just a week or two ago I went into a panick, my room was too warm and i have an AC unit in it. Its just a window shaker then ducted outside with boosters, I use a plug in timer/thermostat so I can have diff settings for light and dark... Well it wasn't working, I checked plugs, fuses, reset buttons, I'm thinking my ac unit took a shit, etc. Then it hit me there is an override on/off switch on it, somehow got bumped to off. Well it wont happen again cuz I'm super gluing the damn thing to "on" if I want it off I'll unplug it. Easiest shit is the easiest to overlook for any of us man... Good luck with the new power source...

The power supply works perfectly! Fan is super powerful compared to a 65cfm I currently have. Only shitty thing is my fan speed controller won't slow it down at all.