Here is what I would do: make sure you are not connected to house power. Measure voltage at battery post, should be above 12 volts. If Ok, measure from positive post of battery to frame of trailer, again should be above 12 volts. If all OK, then while you are measuring 12 volts from battery to frame, have your wife operate one slide and see if voltage changes, a high resistance ground to the frame could be the issue. You can still have 12 volts while no load applied but as soon you have a load, current might not pass at ground connection. Also have you physically checked each fuse in power panel if not burnt, by pulling them out? Are the 12 volts lights working in trailer? Have you look for slide fuses underneath the trailer?
2011 Rockwood 8319SS with ProPride 3P hitch/GoodYear Marathons/TST TPMS 507
2008 F250 Lariat CC SB 6.8L V10 4.10 axle ratio (NITTO TERRA GRAPLER G2 LT275/65R20E)
Yamaha 3000iseb generator:Progressive Ind. EMS-HW30C : Eastern Ontario
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