CHARGED AC AND COMPRESSOR WONT ENGAGE..POWER IS GOING THROUGH LOW PRESS SWIUTCH ON DRYER AND FAN COMES ON WHEN AC SWITCH IS ON..I REPLACED AC RELAY SAME THING, I CAN APLY 12V TO DARK GREEN WIRE ON RELAY AND COMPRESSOR ENGAGES..THERE IS 12V ON BLUE WIRES,,GREEN WITH YELLOW TRACER AND PINK WIRE...