So you've installed the ZEN53 DC Motor Controller, but there is no LED activity, and the device is unresponsive? Please check out the troubleshooting steps below.

• Start by ensuring you have restored power to the unit at the breaker panel, following the completion of the installation.
• Ensure the device is connected to the proper 6-32 V DC power source.
• Next, check the load. Ensure the load for the relay does not exceed 1.5 A (use with DC motors only) 
• Is the ZEN53 connected to more than 1.5A? The ZEN53 CANNOT be used larger loads or those that are not DC motors, so it would need to be uninstalled and connected to an appropriate load.
• CHECK THE WIRES: ensure the device is wired exactly like the diagram, and don't rely exclusively on your multimeter to identify the wires. 

Have you verified everything listed above is correct? Please get in touch, we are happy to help!