We just bought a 2009 HiLo 1709T everything was working when we bought it. Drove to a campsite 3 days later refrigerator, A/C , outlets, and water heater worked but we did not have any lights. Thinking the battery was old we replaced it but it still do not turn on the lights. Any ideas?

Did you check all the fuses, their also some behind the cover of the fuse panel

How about the Master Switch (next to the lifting switch) - Is it in the position opposite from the one you had it in to raise the top? If it's still in the "top up/down" position, the lights and other DC things won't work. You're obviously on shore power, so that's why the AC things work.

- Jack

__________________
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, SoftStartRV mounted on A/C
2024 F150 Platinum FX4 3.5L PowerBoost SCrew