Trying to build an automatic chicken door using a linear actuator that runs on timers to close and open following a diagram I found online. Unfortunately, I have seemingly ruined more dpdt relays than I care to admit but I cannot figure out what is tripping them. The problem appears to occur when I hook the actuator up to the dpdt relay. Connecting all of the wires except the actuator, the relay performs as it should. I tested this and it shown in the video attached. Also, I connected a volt meter and confirmed that the relay was working. But once the actuator is connected and a load applied the relay fails almost instantly. One or both lights come on engaging the relays whenever power is applied. In the picture, you can see that only the positive and negative are attached to the relay but both relays are engaged.