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Old 08-01-2019, 13:25   #1
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Autohelm ST3000 control box

Looking for a functioning control head for ST3000 autopilot. Ours bit the dust.
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Old 08-01-2019, 14:03   #2
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Re: Autohelm ST3000 control box

Does your old existing one do anything, like turning one way only or very weak. If so it can probably be repaired. Normally it's the darlinton power transistors (2 NPN and 2 PNP) that die on the old 3000's.



A autohelm ST4000 will work as a replacement control head as well. Here's one on ebay https://www.ebay.com/itm/Autopilot-A...E84-:rk:4:pf:0
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Old 08-01-2019, 15:14   #3
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Re: Autohelm ST3000 control box

Thanks very much. We had heard that ST4000 may be compatible. The 3000 is making a high pitch noise, but otherwise not doing anything at all.
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Old 08-01-2019, 17:52   #4
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Re: Autohelm ST3000 control box

I have this unit if you are interested.

Autohelm 4000

jefflw2003@gmail.com

189.00 plus shipping

Jeff
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Old 08-01-2019, 19:26   #5
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Re: Autohelm ST3000 control box

Quote:
Originally Posted by kiskeedee View Post
Thanks very much. We had heard that ST4000 may be compatible. The 3000 is making a high pitch noise, but otherwise not doing anything at all.

Ah, the high pitch buzzer is the off course alarm, so the processor works which is a good sign. More then likely repairable for $15 in parts, a desoldering and soldering iron and a few hours time.



Even Blondes can do that. Well if they are an engineer anyway.
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