Just wondering if anyone can help just pickup up our new 20:63.1Ob this week, I have been out playing around with the solar controller we have 2 x 120 watt panels and a TPS555 controller, it has a 3 stage button #1 is battery volts, #2 is amps from solar panels, #3 is amps being used, it shows the voltage @ 12.7 but stage 2 and 3 display 00.0A nothing, is there something I am not doing correct should they display amps in and out?