need electrical help

i just got my seeds in from dr chronic!!! but now i need help with finishing my cabinet. i got a dc comp fan (larger red one for 10 bucks) and a voltage adapter that changes the volts between 3-12v and plugs into the wall, i wired them together and realized that i prolly need a ac to dc converter wired inbetween the 2 things. i went ahead and tried it and it didnt spin so yea, i think im right but what do you guys think? i could have just had the wires backwards since the converter doesnt show polarity tho, what you guys think?

reversed wires

but the adapter is for ac voltage , should it still work with a dc fan?

and since the motor is a permanet magnet type, should it just spin the opposite way if i reversed the wires?

black = hot white = nuetral

intensive said:

but the adapter is for ac voltage , should it still work with a dc fan?

Click to expand...

If the adapter only reduces the voltage from 120v to 3-12v AC then no. You could possibly damage your fan. Your fan needs a DC power source. Check the adapter to verify its AC to AC or AC to DC...

yea i think i need a adapter, ill check the wires also. thanks

The odds of him having an ac to ac adapter with switches to go from 3-12v are a million to one. It's a dc adapter and he just has it wired backwards.

They don't run in reverse.

It could be that it doesn't provide enough current... But more likely just wired wrong.

man your good^ lol


sorry i doubted you, box is complete, will post pics soon

btw if i want 2 fans, kick it up to 12 volts parrallel from the adapter, or just black toblack, red to red? whats better for wiring, i got a slim cabinet and easier wiring is important

Run in parallel... connect all the black together and then connect all the red together. Can't get any simpler.