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Simrad AP Noise

Old 09-12-2014, 07:13 AM
  #1  
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Default Simrad AP Noise

My Simrad auto-pilot is pretty noisy. Every time it engages to make a course adjustment it makes a loud "ERRR, ERRR,..." buzzing noise. I am curious if anyone else has experienced this? Anyway, my Simrad tech is coming on Monday to check it out but I am beginning to wonder if the controller is bad.

Tnx,
Al
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Old 09-12-2014, 09:13 AM
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Got the AP24 and unless I am inside the console where the pump is I don't hear anything.
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Old 09-12-2014, 11:37 AM
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The buzz is coming from the control head, not the pump??? Or ... could it possibly be RF noise from the VHF if the circuits are not isolated?
If it is really the pump , to minimize the sounding board effect try adding cushioning grommets to the mount, and maybe even mounting to another cushioned mount plate if it bothers you .

But perhaps something really is wrong with the pump and motor. ( They all make noise, but in most cases that can barely be heard or not at all with engines running.)

The control should make no noise unless sounding an alarm like Off-Course or Nav Data Input Fail.

What AP? How long has it been this way?
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Old 09-15-2014, 01:53 PM
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Looks like there might be air in my system, plus they are going to remount the pump on rubber feet. I will let you know how it goes later in the week.

Regards,
Al
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Old 09-19-2014, 11:40 AM
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Originally Posted by greenno View Post
Got the AP24 and unless I am inside the console where the pump is I don't hear anything.
+1
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Old 09-20-2014, 10:30 PM
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The noise you hear is coming from the pump.
How old is your pump? How many hours has it logged?
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