Hello, We have a Primus IQ Brake Controller that we took on one trip and were unable to get set up. We got our van's brakes super hot and they smoked for over 30 minutes after coming down 5 summits. We are now getting ready for another trip with the trailer in 5 days and we are trying to get it calibrated. Now "SH" is coming up occasionally, so we are about to start searching for the short in the system. Also, every time we try to calibrate the trailer brake, it will go from 0.0 to 13. The instructions show we need to dial the power to 6.0 to get started while pushing in the manual slide knob. I figured out that 13 is the voltage, and that's not right. A friend is on their way with a circuit tester so we will see if we can find a short or wiring issue. If that is not it, any ideas? We leave in 5 days and will be driving down a very steep road in the mountains then.