Double check some of the wiring. In the picture I see a servo wire incorrectly connected. Be SURE the black wire on all the servos and other device connections matches up with the black terminal on the board. In the picture the lowest wire looks wrong. Meanwhile we will continue to try to resolve your issue.

Ron R

Double check the bottom row also. It is hard to see but there may be errors there also.

Ron R

I don't know your abilities, but if you disconnect the H bridge and confirm all servos and other wires are connected correctly, you could try to power up again. If the switch is bad I would want you to contact the EZB office to see the next step, possibly a warranty issue?

I would like to know if the EZB is ok. The heavy current draw could be from the H Bridge and by disconnecting it that concern is eliminated.

Ron R

Go to the learn section and type in Roli H Bridge wiring. It will show you the wiring and information. Your problem may be here. Check well.

I am sorry you are having a problem. This is not a normal issue with the EZB products. I know DJ's staff and the Community will help you get the issues resolved.

Ron R

By the way I assumed you purchased a replacement fuse and installed it. Automotive or Walmart stores carries them.

Ron R

As Ron pointed out, at least one of your servos is plugged in backwards. That shouldn't bow the fuse at power up, but will either burn up the servo or blow the fuse as soon as you try to move that servo. H-bridge appears to be wired properly. I suspect the bad switch may be the issue.

Alan

My only other concern is if the heavy power wires to the H Bridge is connected correctly. Please also check this wiring. let us know how you make out.

We all hope it is just a bad switch.

Ron R

I am going to disagree somewhat with Alan... Plugging in a servo backwards which I have done many, many times won't blow a fuse and won't burn up your servo either... Even if you try to move it with servo commands... Nothing will happen at all.... As mentioned I have accidently done this many times... most recently with my inmoov's wrist servo.... Had it plugged in backwards for 20 minutes all the while trying to move it with servo commands... Eventually I figured out the dumb move, plugged it in properly and it functioned normally after that....