Hello all, I have a 2004 Mainship 400 with twin Yanmars. I have Faria gauges and at the upper helm, the volmeter no longer works on either engine. The starboard engine started acting up first and a couple taps used to get it going again. Now nothing on either engine. I have 5" Faria multi gauges. I have the same gauges on the lower helm and they work fine so the alternators are working. From looking around, I would say the Chesapeake 5" black with S/S trim is the closest replacement. Problem is, they won't match the Tach exactly as the style appears to have changed. Second issue is that the set I have now only has fuel on one gauge. The port gauge has 4 functions (fuel, temp, volts and oil pressure. The starboard gauge only has three functions (temp, volts, oil pressure). In looking around I have not found a replacement Faria with the 3 functions. What I would love to know is if there is any way to repair/troubleshoot my malfunctioning volt meters? IF not, does anyone know of a source for a 3 function gauge and a 4 function? I would like to stick with Faria to match my tachs and lower helm gauges. Anyone else had this problem?