2000 country coach intrigue with manual air level function series 310 control panel. All functions work correctly except for the raise function using any of the 4 up arrows and the raise button. Coach has a single control board mounted under the dash near the entry door. All fuses are good. Board is AP11053 with no indicator lights. The board has 2 switches. when you turn on the control panel one switch engages. the other switch engages only when any of the 5 raise buttons are depressed but no air goes into any bag, no other sound, just the click from the switch on the control board.
What is the next step to diagnose the issue?
If that's anHWH system, I would call them.