I have a 1999 L3010 with about 480 hrs. Spring tune up and turning the ignition on, no response from the instrument panel. It started after about 3 seconds, still no fuel gauge, temp, glow plug, air filter, etc. Still ran OK. Turned ignition off and the engine continued to run. Had to put in High and stall out the engine to turn it off. Never had this situation before. Any ideas appreciated.