Carenado M20R Ovation not climb with Arm Button

Hi guys.
I’m almost going crazy getting the altitude to work with this aircraft. It does not auto-climb when after I select the new altitude and then press the “Arm Alt” button, the aircraft remains stationary at its altitude. I’ve really tried them all. I’ll explain what I do, so you can tell me where I’m wrong: take off, arrive for example at 1000 feet, activate Ap and press Alt in the autopilot (in the altitude display, the value remains at 0.000 and the altitude reached does not appear). Then for example I set altitude 3000 and press “Arm”. The aircraft remains stationary at 1000 feet!
what am I doing wrong? Thank you all

Hello!

I haven’t flown this plane (because it’s too weak while climbing), but what if your problem is related to GTN530 as we discussed here? [Official Discussion] Famous Flyer III: Beechcraft Bonanza V35 - #525 by Raynen

Following what was suggested for Bonanza worked for me…

Perfect thanks, the 530 was the problem! Thank you very much