Let me give you the right answer..this is NORMAL on a Monaco based chassis and this is a Safari Cheetah 2009...high voltage will happen if you start the motor while plugged into shore power...this was a known Monaco characteristic and it would go off once you unplugged shore power. If you are not plugged into shore power you should have system charge tested to ensure alternator and voltage regulator are OK..I used to like when voltage regulator was separate and it was an easy thing to replace...Now alternator has to be replace to replace voltage regulator. High voltage triggers at 14 volts....