Problem with trailer brakes

Don't skimp on the brakes. If you're having issues now if time to inspect. Get the wheels off the ground, remove the tires and drums. Clean & inspect that everything is in working condition and then adjust the brake so that all wheels apply pressure evenly.

First check for wiring problems - broken or bad connections. If wiring is good with power to all wheels then check the brake adjustment. If these fail then it is time to pull hubs and see what is happening. My money would be on the wiring since the problem is on one side.

If you pull the drums and inspection / adjustment yield no results here is a good page on checking the electrical portion...
LINK

Have an assistant manually apply the trailer brakes while you walk around the trailer. You should be able to hear a humming noise coming from each wheel. If no noise from one wheel, inspect wiring and connections, remove wheel and drum if necessary to locate problem.

Not all drum brakes have a shorter shoe, but if they do that shoe goes in the front.

I'm betting you have an adjustment problem, but you should probably pull the drums first to verify that nothing else is wrong.

Rover1 wrote:
...What would you recommend as the next steps to figure this out....

Lift the trailer.
Remove all wheels.
Remove all drums.
Inspect and service all brakes.

You can do one at a time if it is easier for you.

Might as well get new seals and service the wheel bearings at the same time.

I had the same problem. One set of shoes was installed wrong (Dealer installed). The lining on one shoe is shorter then the other. Off hand I don't know which is which, but you have to make sure the short lining shoe is installed on the correct side of the drum. You can google it from dexter.

Lift each tire (1 at a time with a jack placed under the spring perch on the axle). While the tire is in the air, spin it then you or a helper can hit the controller override lever to engage the trailer brakes. This will show you if you have one or more brakes that are not functioning. This will most likely not show a 'weak' brake, but will show one that isn't working at all.

Now that you know which brake(s) is not functioning, you can go more in depth to find out the reason why (adjustment issue, faulty wiring, bad magnet, contamination, ect).

You need to pull the drums and see what is going on. Chances are that grease is leaking onto the drums.

I'd do an inspection , and then an adjustment.