Just got my GTC with 22000 miles on it. Cannot figure out how to make the converter work. Also do not know what the toggle switches on dash are for. Have many wires to follow and chase. Vacuum bottle mounted near torque converter?

Welcome aboard.

You shouldn't need to do anything with the inverter. If you have the coach plugged into shore power, it is on. No switch to turn it on and off. It will charge the house batteries and run the 12v lights and the fridge. Make sure you have enough amps though if you want to run the fridge or the a/c.

The only toggle switch on the dash from the factory is near the radio and that is the lockout for the electric step. A lot of people added on fog lights or other lights and switches.

Not sure about the vacuum bottle. A picture would help.

Nick.

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Nick Taylor - Green & White 1974 Hall GTC.
www.NicksGarage.com == www.HallGTC.com == www.NicksTeardrop.com

Technically speaking, the device you're talking about is a "converter", not an "inverter". A converter is really just a transformer to convert 110 VAC to 12 VDC that also serves as a battery charger. In our case, these converters also include the DC fuse panel, which makes them critical in the systems electrical supply. The unfortunate thing with these units is that they are pretty bad as chargers. At least mine is, and I assume that they're all the same. The biggest issue is that their max float voltage is only 12.8 and there is no "bulk" function at all, so bringing up a low house battery bank to a sufficiently high voltage point - say 14 VDC - is impossible without either charging via the engine alternator or through a decent battery charger of some kind.

I've been considering changing mine out for something more effective for a couple of years now, but then I'd also need to find an appropriate place to install a new DC breaker or fuse panel.

Matt