Does anyone have information about automatic reset breakers associated with the solenoid which controls the motor to raise and lower my Hi Lo ?

Hello, Richard, and welcome!

I moved this post to its own new thread in the electrical section since your question has nothing to do with the roof of HiLos. You should get better responses here.

It would help to know the model and year of your HiLo, but, I think you are asking about the circuit breakers in the battery compartment? They not only protect the solenoid that controls the motor in your HiLo, but they also provide first level protection for EVERY DC appliance in your trailer, with the possible exception of your tongue jack, if it is powered. They also limit the charging current that can be delivered to your battery from the converter and/or the tow vehicle.

What specifically, are you asking about them? If they're like mine, they are both 30 Amp breakers, and they automatically reset if tripped, once the overload is removed.

- Jack

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Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH, Progressive Dynamics Converter, Fan-Tastic Fan, LiFePO4 battery 12V DC Electrical System
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew

1509 Hi Lo 15' 2009 When should I replace the breakers ? How will I know?

Jack, I am just trying to figure out how to use this forum so please bear with me. MY answer is in your quote but here it is again. 15' 2009 Hi Lo.

How will I know when to replace these circuit breakers ?

Richard

Hi-Lo had either manual reset breakers or automatic reset breakers. They are the little boxes with two threaded studs the wires hook to. The manual breakers have a little reset button that sticks out on one side, the automatic has no button. They are located in the battery box. You can check them with a multimeter or a test light. Disconnect one of the wires and check. If test across the terminals shows conduction they are good.

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Richard, don't worry about asking questions, we are happy to help. The reason I asked about the model year of your trailer is because I was trying to confirm if you had automatic reset breakers as your first post implied. And, I'm sure you do have those now, with a 2009 model year HiLo.

Rich gave you a test procedure to verify the breakers are conducting, but if your top lifts, and if the DC components (lights, water pump, furnace, etc.) work in the trailer, the CBs are conducting power. There's nothing really you need to check and you would only replace them if they are no longer conducting.

They are very much like the circuit breakers in your house. If things work, you don't even know they are there. If a circuit suddenly dies, and you find the circuit breaker popped for no reason (no overload - and it won't reset), you replace the breaker. As you know, this is a fairly rare occurrence.

- Jack

Thanks. Good information. I already purchased two automatic reset breakers for around $6.00 each for the 'just in case'. I do have a multimeter and have been shown how to use. If the DC fails ( always during a trip) I will start looking/testing here.

I am getting great advice reading this forum. Thanks to everyone who asks and responds to questions.

Richard