raypak rp2100 lcd display supplier

Hi I have a Raypak natural gas heater (266k btu, model P-R266-A-EN-C). The digital display is not displaying at times. I"ve seen it happen 3 times in the past month. Does anyone have any insight as to an impending issue that I can correct now (before it costs more later). Everything works fine otherwise. Even when the display doesn"t show I can still adjust the temp. btw, when it doesn"t display it"s the entire screen (not like some displays and some doesn"t). Thanks for any advice you can provide.

My Raypak will no longer ignite. I am getting the clciking sound as it trys to ignite but never ignites the gas. Also my LCD display is "bleeding" for want of a better word and it"s difficult to make out the curren temp readings. I can just about see the thermostat temp reading and whether I"m in Spa or Pool mode. Any ideas? Heater was running fine, then quit. Thought it might be water in igniter assembly as I had a sensor on teh water inlet come loose and let water drip into the heater. That was weeks ago, so everything should have dried by now. But cannot get it to ignite. Can a crappy LCD cause this problem?