KAP 140 autopilot problem?
Our club aircraft are all fitted with a CAP 140 autopilot. For some reason I keep getting the red (P) symbol after the system test, indicating that the pitch mode has failed. Strangely, by turning off power to the avionics and re-starting the pre flight test seems to cure the problem.
I would have put it down to a faulty unit, but it's happened to me on all 3 of our club aircraft, which leads me to believe I must be doing something wrong, but what? I make sure that the Avionics master is OFF until the engine is stabilized and the Alternator is online. I don't touch the trim wheel until the test is complete... what else am I doing wrong, or not doing?
Any ideas?