We have a Crown Wave 84 and need a fault code, the 4 lights on the far right side of the display are lit, if I am interpreting them right this would be code 15 (1+2+4+8), correct? Can anyone tell me what code 15 is referring to?

The unit raises up about a foot, stops, and gives the code. When you turn the key off and back on the self check seems OK, then when you try to raise it goes up about another foot and throws the same code. Subsequent off-on cycles give the same effect.

Thanks for any help.