We have a 2008 Tiffin Phaeton, and I often have questions regarding all the nuances of this coast. Currently, when driving, both of my air pressure gauges will drop to zero, activating a noisy alarm. Often it's just one at a time, but today, both gauges stayed near the bottom for quite a lengthy time. Tanks are full of air, in that when the gauges 'do' come to life, they instantly go to the top. I'm hearing elsewhere, where it may be a wiring issue, thus I'm wondering how to get at these wires, and if I need to use an electrical cleaner on connections? I thought I'd see what advice you folks might have on this issue. Thanks in advance!