4 Approaches For Fixing Bennett Trim Tabs Not Working

bennett trim tabs not working
bennett trim tabs not working

Bennett Marine is the one brand that you’ll often hear about when it comes to finding perfectly durable and dependable trim tabs. Most of the users shift towards this brand because of its exceptional warranty policy.

In case of any defects with the trim tabs, users can directly reach out to customer support and claim free replacement. With that said, you should still expect to run into some minor issues with Bennett trim tabs not working.

Most of the time, you’ll be able to fix these issues with relative ease, but if you’re inexperienced, then your best bet is to reach out to customer support. So, let’s cover a few of these common issues and solutions.

Make sure that you go through the steps carefully as there are several reasons behind an issue. As long as you understand what might be causing it, fixing it should be easier.

benett trim tab

The problems mentioned below are some of the most common reasons your Bennett trim tabs might not be working.

Bennett Trim Tabs Not Working

  1. No HPU Sound

If you try to operate the trim tabs, but there is no sound from the HPU, then there is a good chance that you’re dealing with some connection problems. Your trim tabs will not work unless the HPU has sufficient access to power.


So, keep that in mind as you try to fix the Bennett trim tabs when you don’t hear any sound from the hydraulic unit. The majority of times, this issue with the trim tabs is caused by a defective in-line fuse.

This is why it is best to start the inspection from the in-line fuse and use a multimeter to check for continuity. If you’re sure that the fuse is no longer working, then you can fix the problem by installing another 20-amp fuse in the control unit.

After the new fuse is installed, everything will be fixed, and you won’t have to concern yourself with the same issue again.

On the other hand, if the fuse is in perfect shape, then you will have to inspect the wiring cluster in the control unit to get around this problem with trim tabs not moving.

Some people have trouble trying to locate the damaged cable. If you are running into a similar problem, then try looking for small cracks or breaks on the wires.

These usually indicate that the cable is damaged and should be replaced with a new one.


Replacing this with a new one should fix your problem in most cases. Keep in mind that wires can be difficult to replace if you are a beginner.

This is why you can either consult the manual provided along with your Bennett device or contact a specialist to help you out.

Other than this, the problem can also be avoided if you take care of the wiring. The most common reason behind damaged cables is improper routing.

As long as this is avoided, the problem you are running into can be prevented which leaves out all this hassle.

  1. One Tab Not Moving

In some situations, you’ll find anglers struggling with one trim tab not moving while the other one works perfectly. Here you’ll hear the noise from the HPU, and the switch will work perfectly for one tab.


If you’re having similar issues with the Bennett trim tabs, then you should start the inspection with the hydraulic lines.

Usually, reversing the orientation of the hydraulic lines attached to the front section of the hydraulic unit will fix the problem.

This can help you isolate the problem with the HPU and the wiring connections. If there is an issue with the HPU, then the other trim tab will stop moving after reversing lines.

However, if you’re still struggling with the movement of the same tab, then you will have to check the wiring connections.

Corrosion can have a huge impact on the functioning of your trim tabs.

If you don’t follow a monthly maintenance cycle, then the corrosion will disrupt the flow of power between the connection points, and the trim tab will not move.

Luckily, you can get around this issue by cleaning the connection points with a vinegar solution, and that should be the end of your trim tabs issue.

Keep in mind that the corrosion might be stuck in some cases. If this happens then it is best that you apply some additional pressure to clear the layer.

  1. Retracting Problems

Another issue that many users have brought up is that the trim tabs will not retract after users extend them in the water. It can be quite challenging to maintain the balance and smoothness of your boat while the trim tabs are fully extended.


So, you’ll have to get around this issue immediately before you take your boat on the next fishing trip. To fix this retraction issue, you need to use a voltage measuring tool to check the power output from the battery.

During the normal operations of the trim tabs, you need the voltage of the battery to be above 10 volts. If your battery is not going above 10 volts, then you’ll need to get a battery replacement for the unit.

In some cases, the problem can also be from the battery connections being weak.

You can usually test this by tightening the connections and then checking if the battery is now getting charged. However, if your battery was old then there is a high chance that it might require a replacement.

The only thing that you need to look out for here is the battery being supported.

Additionally, the quality of the battery can play a huge role in how last it will last you. This is why make sure that you look into some reliable brands before deciding which battery to purchase.

  1. Faulty Parts In Trim Tabs

With that said, if you’re dealing with any other issues, then you can call the company number on any of the working days to get professional assistance.


That way, you will be able to isolate the problem, and the issue won’t get any worse with your trim tabs.

The great thing about the customer support team is that it can allow people to fix the issue quickly. The only thing that you need to do is provide the team with all the information required regarding your problem.

They will then look into the issue and provide you with a viable solution.

If the parts are faulty then you will either receive some replacement parts that can be installed. Alternatively, you can send the trim tabs back for repairs.

Whatever the case might be, the team will try their best to get the problem fixed as soon as possible.

Some people might think about dealing with the issue on their own. When it comes to them, you should note that there are tons of moving parts inside the Bennett Trim Tabs.

If you know how these work then finding the problem should be simple.

However, if you are not experienced then the process will take a lot of time and effort. You can try consulting the manual or watching video guides online for support, but the task will still be difficult.

To prevent all this hassle, it is much better that you contact the support team instead.

If you still had a warranty left on your trim tabs, then you will also be provided with a discount or free repairs. This can be amazing but make sure that you go through the warranty guidelines beforehand.

1 thought on “4 Approaches For Fixing Bennett Trim Tabs Not Working”

  1. Trim tabs not moving and pump is working. Getting fluid in the water. I assume i have a cylinder leak. Any fix while the boat is in the water ?


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