One-Eleven autopilot question

  • I just tried to follow the tutorial ("Flying the One-Eleven" topic in the manual). Everything went fine up to section "Climb". Here the manual says:

    "Rotate the vertical speed wheel to select a climb rate of +2500 ft/min and then move the altitude hold switch to the ON (up) position. The autopilot will now control the pitch of the aircraft to maintain the selected vertical speed."

    But the plane then putsthe nose down and I have to switch off the AP eventualy.

    Am I missing anything here?