Troubleshooting Bennett Trim Tabs

[muskyfins]

Trim tabs worked fine during my final systems check immediately before launching boat. First time I tried to use them, (which may have been a week or two later) they had no movement and no change on indicators. I don't hear the hydraulic pump running, but I can't confirm that yet. Haven't had a real chance to get down and do some troubleshooting but is there a fuse between the breaker and the control module? I believe there is an inline fuse between the ignition and the control pad. But all the lights on the pad work? Also how do you get the control pad out to check that fuse?

2011 Formula 290 Sunsport

As always thanks in advance for any help you can offer.

 

[Chris1956]

Trim tabs are often an add-on item. First look for a separate wire on the battery. Failing that see if you can trace the wires from the pump to electric supply. Remember, trim tabs are hydraulic in the up direction, and spring loaded for down. So you will generally only have 2 wires on them.

 

[muskyfins]

Trim tabs are often an add-on item. First look for a separate wire on the battery. Failing that see if you can trace the wires from the pump to electric supply. Remember, trim tabs are hydraulic in the up direction, and spring loaded for down. So you will generally only have 2 wires on them.

These are factory installed. The wire between the breaker and the pump control module are buried in the hull. I can't see why there would be an additional fuse in that line but wasn't sure. Also, these are double acting hydraulic actuators.