ctsniper86

Would a zener diode work?

They work when I connect them in parallel to the other fan plug but not to the fan pwm plug. I assume that the pwm controller part must be blown. My plan is to run them from the other fan plug and put a manual switch in the connection to allow me to turn the part fans on and off manually. Do I need to use a 240v switch or will a 12v work? Could I use a 12v LED dimmer switch or a regular light dimmer to give me control over the fan speed? Thanks

I realized that I had got 5v replacement fans rather that 12v. So I got two new 12v fans but I still can't get them to function on the fan pwm plug. I have tried them on the other fan plug (which also shows 24v) they don't work when I connect them in series no matter how. However when I connect just one it works just at what I assume to be faster speed than normal.

I noticed that the part fans on my ultimaker 2 had stopped working the other day and found a broken wire between them, after replacing the wire they still don't work. I tried switching them both out with new replacement fans with no luck. I have since noticed that the heated bed isn't heating anymore. I have access to the board atm but don't know what I am looking for or how to test anything. Any info I've missed I can find. Any advice on how to proceed from here Thanks