I'm having a problem with a swift futura leaving the first landing. As it starts to run up I lose bk,flt,emst, and df. It will begin to level down and run up and do it again. The fault codes I'm getting are 10, 9, 94, then 18. Once in awhile it will take off and work fine for about 30 mins than get stuck again. When it does happen I am not able to run up on inspection but I can run down on inspection. HPV 900 drive