still have not figured this out... how often does the leveling unit go bad (p/n 37246779713). Might also be called the valve block located behind the front pass wheel under the rocker panel?

Pump comes on, but bags dont inflate. When i disconnect the lines from the block and apply air directly to each bag, each wheel raises. Trying to figure out if the block has gone bad, of if its the control unit responsible for not directing the air.