Auto Pilot Help Needed

[holtcl]

Dear Forum Members,

I have the first auto pilot ever made - the Robertson AP 100. It was working just fine, then I believe I sustained some hurricane Sandy-related damage.

In the middle of the storm I noted a "pump running" sound coming from the port ER. Went up on the fly bridge, and noted that the auto pilot display was on, though the knob was in the off position. I went to the ER and turned it off using the breaker.

Currently, though the power switch on the display seems to turn the display on and off, THE PUMP WILL NOT STOP RUNNING. What do you think may be the cause?

Unfortunately, even under the boat stays in a covered shed, I believe I may have gotten water intrusion during the storm, which may have caused the problem. Could it be the solenoid?

Thanks very much for your help.

Cheryl
Cinderella
1971 53 MY

 

[holtcl]

(Bump) all the expertise on here and nobody has an idea on this ?

Thanks in advance for any thoughts...

Cheryl
Cinderella
1971 53 MY

 

[Boatnut]

Hi Cheryl.

It sounds like one of the power transistors has failed, it should be easily fixed by a good electronics technician. If oyu wish further help, send me a PM. Also check to see if the pump always runs in the same direction.

 

[Xmeter]

Rich at Robertsonrepairs has helped a few of us on here with great results.
Do a search and you will find his site. He has always answered emails very promptly when I have asked questions and has instructed me on exactly what tests to perform to find out what needs attention.

 

[sandspur1966]

http://www.robertsonrepairs.com/Pages/default.aspx

Here is the link to roberston repairs guy.

He was helpful on the phone but I ended up having my pump rebuilt by a local hydraulic shop. My issues were on the pump side while yours sound like the electronics side though.

One thing to consider before spending $$$ on a repair, there are tons of AP100's on the used and refurb market as people have upgraded.

 

[holtcl]

Thanks very much- will contact Robertson-

I also thought about just replacing parts but not sure what to replace.

Thanks!

Cheryl

 

[captddis]

I have a junction box and other AP100 parts if you can't find the problem.

 

[holtcl]

Thanks-- Sending PM