[smithjohnsq]

Hello-

I'm having this same issue. My DC motor works fine, but my solenoid is unresponsive. I've tested the solenoid with a wide range of different settings and the result is the same. I've also ordered two separate solenoids from Koma to test the functionality of the motors. I'm now going to try to make my own motor and see if this works. I've noticed that within Koma's FAQ section they suggest that any solenoid should work so long as it is under 9V and <500mA. Is this so? It seems like the solenoid that ships from Koma is 12VDC and 300ma. Would it make sense to use a lower voltage (lower than 12VDC) solenoid with the unit?

It seems like using a lower voltage solenoid (like 9V or 5V) could work, but you might see reduced performance in terms of strength or speed compared to the 12VDC solenoid Koma provides. As long as the current draw is within the <500mA range, it should be fine. Just make sure your power supply can handle the load, and you’ll likely be good to go. Testing different solenoids is a smart move to get things running!