Simrad robertson ap 20 on the fritz

Discussion in 'Marine Electrical / Electronics' started by WMhunts, Jun 25, 2018.

  1. WMhunts

    WMhunts Member

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    I cant figure this thing out, im new to auto pilots. It worked ok last fall for about the first 50 hours i had the boat. This year it started messed up & hasnt gotten better.
    It seems the compass cant get its bearings, sometimes it will hold bearing but if i try to adjust with knob or arrow keys its goes wild & the compass reading goes round & round.
    Sometimes it will be holding path alright then veer port or starboard off course & still say the heading is the same.
    Also compass never matches gps or actual compass always at least 7 degrees off.
    Any & all help will be appreciated is there something ican do on the menu that will help this. Compass calibration doesnt work just keeps going & going.
    Is it the compass?
    Perhaps unit is too old & i should replace?
     
  2. Charlotte

    Charlotte Member

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    Did you put something ferrous near the compass in the off season?
     
  3. WMhunts

    WMhunts Member

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    I dont believe so.
    I did put my tool kits inthe head they must be at least 3ft from the compass , i suppose its probably 10lbs of steel could that be it?
     
  4. Charlotte

    Charlotte Member

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    I would start there. Do a little search of the area. Remove anything suspect and see what happens. It’s easy and cheap to eliminate this as a source of the problem.
     
  5. WMhunts

    WMhunts Member

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    Good news!
    I downloaded the manual & went through the initial set up process. Problem seems to be solved
    Pretty sure the unit wasn't recognizing the compass
     
    Hallelujah Newman 36 likes this.

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