I am looking for a manual for a 1984 Rockwood XL 1076 tent trailer

Question edited for clarity.
Question moved to RVs.

It shouldn't do unless the controlling software is faulty. There should be a diode that only lets electricity flow from the solar panel to the battery in sunlight, but shouldn't allow electricity to flow back to the solar panel at night.

Batteries should last 4 to 6 years if they are looked after, and during the winter months, they should be on a battery minder to keep them trickle charged.

Any electrical items in the trailer tent like fridges, microwaves, televisions, heaters, AC etc, may be drawing some power when not in use either by design (standby) or by error (parasitic draw).

This site has it:
https://www.popupportal.com/resources/1991-rockwood-camping-trailer-owners-manual.46/
You will have to join in order to see it, but it's a free website.
Rockwood only changed the manual every 8 years or so, so don't be surprised that it's listed for 5 years before yours

Forest River manual for your travel trailer says they have hydraulic and electric slides. Look online for the manual for your slide manufacturer for troubleshooting steps.

The Rockwood is manufactured by Forest River. Contact your nearest authorized retailer or click here: Forest River RV Contact Us Forest River Inc

Tent World........

you may have to prime the pump to get it to start pumping

I have the same trailer and had the same problem. The trailer has a button that shuts off all power when the swing down stove and sink are folded down (this prevents anything from turning on when the trailer is folded down). The button is red and one of the wires came off the terminal.Once I hooked the wire back up everything worked fine.The button and is visible as soon as you fold down the sink and stove. The funny thing is that there is no mention of it in any of the literature that comes with the trailer

One is available for download from http://www.popupportal.com/manuals/Coleman/Coleman_1982.pdf

check connections -test and check ignition ,gas valve ,thermocouple for proper placement ,dirty or damaged