When motor is running I get shocked when touching controls. I have checked plug wires grounds etc. Took black and yellow wire off of power pack and voltage on controls go away. Question with motor off I turn the key on and there is a small amount of voltage showing like .2. Could the switch be bad or is there a short in the black and yellow wire? If so can I just run a new single black and yellow wire? Grounding wire in controls is hooked up the way the diagram shows.