I bought 2005 jayco J series and I keep blowing the light bulbs when hooked up at the camp sites, and now i tried my furnace and it won't ignite and code blinks ignition lockout fault Could this be my inverter? Thanks for any help.
When light bulbs start blowing, it usually means that some circuit is wired wrong and is using the bulb as a path to ground for that circuit. You may want pull ALL your 12 VDC fuses and plug them in one at a time until you find the circuit that is causing the problem. You can then try and isolate what is on that circuit and correct it.