When raising the camper off of some saw horses to put back on the truck, I am raising the camper about 1', the jacks work just fine.When raising the truck from a much lower position, like when you would use it off the camper and I need to raise it over 2' is when I am having an issue.The HJ's have a mechanism that stops them after one minute of continuous use (up or down) then you just push any button on the remote and away you go. I get about 1 foot of lift out of the way, then the entire electrical system shuts down. No jacks, no lights, nothing. Then in less than a minute all is working again and I can raise the camper some more. The jacks are on a 30 amp fuse, the larger silver looking type. I thought that might be tripping but that would not shut off the entire camper.It would also be symptomatic that the batteries were low, but mine are brand new Lifeline's, fully charged. I didn't get the exact battery voltage while using the jacks this time out, but I will next time just the rule that completely out.This is never an issue when lowering the camper, so it is probably connected to the increase amperage used when raising the camper.Any thoughts other than the batteries being an issue?

The behavior is typical of a self-resetting thermal breaker.The wiring to the jacks is inadequate for the load the jacks are putting on it. I'd say stop every 9" or so and let things cool off.

mkirsch wrote:The behavior is typical of a self-resetting thermal breaker.The wiring to the jacks is inadequate for the load the jacks are putting on it. I'd say stop every 9" or so and let things cool off.I called Happi Jac, they said that the manufacturer may have installed such a thermal breaker. I've got an email in to Adventurer to see if such a breaker is installed.Happi Jack also said that if I plug the camper in and use both the converter and house batteries and it does it again, it is most certainly some kind of thermal breaker.If the batteries didn't have enough power he said that a red light would appear on the wireless remote, that does not happen when this occurs.

When you put a load on batteries you get voltage sag. I'd plug in the umbilical cord for the camper into the truck and have the truck running so your alternator is giving the jacks full power.The alternative to that is be sure the camper batteries are fully charged up. If it's cold out; the batteries will not output as much as they would when warmer. Ever start a car in really cold weather and it barely turns over the starter?Also if you're running all 4 jacks at the same time; you could run the fronts for a couple inches; then the backs; and alternate to raise the camper. See if the jacks have more speed when only running 2 instead of all 4.Do you have 1 battery or 2?

rtz549 wrote:When you put a load on batteries you get voltage sag. I'd plug in the umbilical cord for the camper into the truck and have the truck running so your alternator is giving the jacks full power.The alternative to that is be sure the camper batteries are fully charged up. If it's cold out; the batteries will not output as much as they would when warmer. Ever start a car in really cold weather and it barely turns over the starter?Also if you're running all 4 jacks at the same time; you could run the fronts for a couple inches; then the backs; and alternate to raise the camper. See if the jacks have more speed when only running 2 instead of all 4.Do you have 1 battery or 2?I have two group 31 Lifeline batteries that are 60 days old. The camper at the time had sat in storage for 1 week. I do have a solar charging system on board, so the batteries were fully charged, floating at 13.3 volts. The ambient air temp was approx. 65 degrees out.

Your Eagle Cap will be wired similar to other campers. Below is how my AF990 wiring starts.Note, the 990 has 2 ckt breakers that will stop both the jacks and lights.Edit: The diagram I used has a couple of errors. This was cut from a schematic I did a while back. I've since made some updates. The 40A breakers are in the main line and the wire to the generator is 2AWG.The issue is most likely the breaker just before or just after the disconnect switch. (If your disconnect is in a similar location in the circuit)

Happi Jack 4560's stop.... | Good Sam Community

Joe417
Explorer
Dec 16, 2014
Your Eagle Cap will be wired similar to other campers. Below is how my AF990 wiring starts.

Note, the 990 has 2 ckt breakers that will stop both the jacks and lights.

Edit: The diagram I used has a couple of errors. This was cut from a schematic I did a while back. I've since made some updates. The 40A breakers are in the main line and the wire to the generator is 2AWG.

The issue is most likely the breaker just before or just after the disconnect switch. (If your disconnect is in a similar location in the circuit)
egarant
Explorer III
Dec 16, 2014
rtz549 wrote:
When you put a load on batteries you get voltage sag. I'd plug in the umbilical cord for the camper into the truck and have the truck running so your alternator is giving the jacks full power.

The alternative to that is be sure the camper batteries are fully charged up. If it's cold out; the batteries will not output as much as they would when warmer. Ever start a car in really cold weather and it barely turns over the starter?

Also if you're running all 4 jacks at the same time; you could run the fronts for a couple inches; then the backs; and alternate to raise the camper. See if the jacks have more speed when only running 2 instead of all 4.

Do you have 1 battery or 2?

I have two group 31 Lifeline batteries that are 60 days old. The camper at the time had sat in storage for 1 week. I do have a solar charging system on board, so the batteries were fully charged, floating at 13.3 volts. The ambient air temp was approx. 65 degrees out.
rtz549
Explorer
Dec 16, 2014
When you put a load on batteries you get voltage sag. I'd plug in the umbilical cord for the camper into the truck and have the truck running so your alternator is giving the jacks full power.

The alternative to that is be sure the camper batteries are fully charged up. If it's cold out; the batteries will not output as much as they would when warmer. Ever start a car in really cold weather and it barely turns over the starter?

Also if you're running all 4 jacks at the same time; you could run the fronts for a couple inches; then the backs; and alternate to raise the camper. See if the jacks have more speed when only running 2 instead of all 4.

Do you have 1 battery or 2?
egarant
Explorer III
Dec 15, 2014
mkirsch wrote:
The behavior is typical of a self-resetting thermal breaker.

The wiring to the jacks is inadequate for the load the jacks are putting on it. I'd say stop every 9" or so and let things cool off.

I called Happi Jac, they said that the manufacturer may have installed such a thermal breaker. I've got an email in to Adventurer to see if such a breaker is installed.

Happi Jack also said that if I plug the camper in and use both the converter and house batteries and it does it again, it is most certainly some kind of thermal breaker.

If the batteries didn't have enough power he said that a red light would appear on the wireless remote, that does not happen when this occurs.
mkirsch
Nomad II
Dec 15, 2014
The behavior is typical of a self-resetting thermal breaker.

The wiring to the jacks is inadequate for the load the jacks are putting on it. I'd say stop every 9" or so and let things cool off.

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