WFCO Power Converter Smoking

If the AC was off when you had it running 240V, it is likely that you dodged that bullet and your AC is okay. As for the capacitor losing its fluid, that is not good. The capacitor is compromised, if not blown and not functioning. It may be that some of the parts of the converter are still functioning, but whatever was on the part that uses those capacitors may not be. I'm not an electrical engineer and I don't have a schematic of the converter and what parts of the circuits do what function. I had a computer where it was not working properly. Some functions were fine, but then it would shut down unexpectedly on other functions. When I looked, it had some blown capacitors.

The safest thing is to replace the converter and chalk it up to a learning experience. If you have the capability to replace the capacitors, you may be able to restore full, reliable functionality if nothing else was damaged from the power overage. However, that is beyond my skill level. 

A rabbit hole, in other words. And too high a chance that other expensive control boards in the camper could be damaged if things are not 100% correct at the converter output.

I would replace the entire converter module, and then if you find the time, you can always experiment with the old one, on a workbench, with an old battery and a couple of lightbulbs for testing.

If it works, hey you have a spare unit. But very likely it wont, and you will find that other components are damaged.

Offgrid, gotta hand it to ya, I would simply NEVER try to explain house wiring, circuit breakers, 120 and 240 volt connections, neutral, ground, and two hots, on a forum, where someone will promptly go and mess around in a service panel and bad things could happen. Very bad things. 

I would tell them: If you do not know EXACTLY what you are doing in there, call an electrician.

It's a bit like explaining to someone how to remove their own appendix! (in other words, if things dont go exactly right, death can occur!)

Ya's gots balls...all I can say.

The abundance of information is a great thing about the internet, so there will always be information on DIY. 

And this amplifies exactly my point: Misunderstandings can certainly happen, over the phone, on the internet, and in person. 

None of this is directed to the OP and his abilities...although something happened:

Originally posted by FrankTank I did wire the outlet myself, I took power from a old water heater connection ( pretty sure its 120v because it's a single breaker) Say I did wire it incorrectly 240 instead of 120v, would this be a similar outcome?

When it comes to a home electrical service panel with high voltages and lots of amps just waiting and ready to do interesting things, 'pretty sure' is not what we want to hear. If not 100% sure, the voltages should be verified with a meter.

Just sayin.