LP refrigerator indicator gauge problem

Hi fellas,

I've got a kz sportsman series travel trailer with a 2 way fridge; LP and 120v options. I've been having some issues with the LP indicator gauge. I push/hold the gas knob inward and hit the pop igniter. The indicator goes to green so I let off the gas knob pressure. The problem is when I let pressure off the gas knob out the gauge reads out of the green and falls down to white/red as if the fridge isn't running. In all reality the fridge is operating even though the gauge/indicator isn't indicating so. I verified this by opening the door I can hear the flame burning and the unit operating. It also does cool as intended. The odd part about this is when I push my finger against the control panel like next to the gas knob or really anywhere near the gauge the indicator/gauge reads green as I should. It does not take much pressure at all pushing my finger against the face of the panel to make the gauge jump to green. Any ideas on what's going on here? Maybe if I had a better understanding how the gas indicator/gauge works I would have a better idea to the solution. FYI the fridge is out of warranty by a few months. also the 120v side of things works fine as well.

Thanks for any help,
cheers,

Jim