If your gauges are only lighting up a dim red color then this normally means one of two things. The most commonly seen cause for this would be the 12v constant power wire does not have any power going to it. If you are having this issue with multiple gauges at the same time then this would be the first thing to check. The second scenario that can cause the gauge to be a dim red color is a stuck button. If the button is stuck we would suggest seeing taking a look here for information on how to fix a gauge with a stuck button.