Hi I have been having a problem that comes and goes. The machine runs fine, but every once in a while there is an annoying beep that goes off. I thought it was my fuel being low. Now it has gotten to the point where it beeps and the error codes come up on the display. The machine stalls, I turn the key off and it restarts, then within seconds it stalls again, after doing this a few times it has remained running. Last night while working around the house it happened again, but this time it won't start anymore. It turns over though. Codes on display EP-3 .... wire not connected and EP-7 .... sensor out of range Does anyone now what to look for to fix this problem? thanks Slyder