I had that same problem with my autopilot course computer. Lee at Raymarine had me
Do a compass deviation correction while he was on the phone. I did it over and over again , and he kept saying that I was doing something wrong.
We finally agreed to have him check it out. Come to find out there was a loose resistor on the circuit board.
Unfortunately, I do not believe that they will fix an old course
Lee is the Guru of autopilots at Raymarine.
For that reason, I keep a spare on board.
When I need old Raymarine equipment I get it from eBay.
Kimberlite Amel Super Maramu #376
From: main@AmelYachtOwners.groups.io On Behalf Of Ian Townsend
Sent: Monday, March 29, 2021 12:34 PM
Subject: [AmelYachtOwners] Attention Autohelm ST7000 Gurus!
When I choose “Navigate” to a waypoint, the pilot steers the boat until it gets a 0.05 nm to 0.10 nm XTE to port every time. Then it course corrects by heading to starboard until it gets back on the rhumb line. Takes about 5-10 minutes depending on the wind speed. Anyone with the same experience? Would it have to do with compass deviation? I am using a Raymarine E Series chartplotter. Pilot is a rotary drive type.
Loca Lola II