I tried moving my dish from 107W to 121W and the actuator went way too far west and I started getting the Er2 message. I got a new actuator (I think it's a Venture). When I installed it I keep getting the Er2 message on my vbox7. I tried hooking up the battery charger to the actuator and its running strong. Replaced the sensor and still Er2. I tried the Vbox on a Uniden actuator I know works and still Er2. Any suggestions?