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Trim tabs blowing fuse

 
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rover



Joined: 21 Jul 2016
Posts: 2

C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: Rover
PostPosted: Thu Jul 21, 2016 4:17 pm    Post subject: Trim tabs blowing fuse Reply with quote

Hello,

I have a 22 foot C-Dory cruiser and I am having an issue with the trim tabs. My trim tabs are blowing the 15 amp fuse every time I use them. It had been stored for the winter but nothing else has changed. I have never had an issue with them in the past and the fuse and wiring has not been changed. Any ideas what might be the problem?

Thank you!

Cheers,
Marie
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thataway



Joined: 02 Nov 2003
Posts: 20779
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Thu Jul 21, 2016 5:53 pm    Post subject: Reply with quote

C Dory's have had trim tabs by Bennett, InstiTrim/ Boat Leveler (hydraulic) and Lenco (electric). Which brand do you have?

Both Bennett and Boat Leveler call for 20 amp fuses, as does Lenco.
First thing I would do is to put in a 20 amp, fuse, and see what happens. Watch the voltage on the circuit (with a volt meter), if it is going way down, then you may need stop right there. I would check out all of the issues below before putting in the larger fuses.

The most common issues are corrosion. I would trace out all of the wiring, and clean all connections. Is the breaker blown when you turn on the circuit, or when you move the tab? Does it blow immediately, or after a few seconds? Does the tab move at all? At times the pumps have also had corrosion issues, and thus the motor becomes frozen. Also there can be enough corrosion on the cylinder shaft, to cause the motor to overload. If the tab is extended you can clean the ram with WD 40 or similar material.

I prefer a circuit breaker over a fuse.

_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL
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rover



Joined: 21 Jul 2016
Posts: 2

C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: Rover
PostPosted: Mon Aug 15, 2016 1:45 pm    Post subject: Reply with quote

Hi Bob,

Thank you so much for the reply. I have traced it back to the motor on the trim tab, it seems to have been water damaged and is toast.

Thank again for your reply,
Marie
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