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Wednesday, December 5, 2012

Inverter Questions

Where can I find the wiring diagram for a 1989 Citation RV? I have one in NJ. I bought it used and it is having some electrical problems. I don't know what the inverter is used for. I was told that my lights are low voltage (12-volts), therefore I need the inverter. I don't believe it for a minute, but I would like to get a copy of the diagram in order to troubleshoot the problem. Can you help? Gerzan A., (N. Bergen, NJ)

Gerzan, it’s doubtful you’ll ever find an accurate schematic or wiring diagram for a coach that old, even if one existed. But typically, all lighting in an RV is 12-volts DC (direct current). An inverter is the electrical opposite of a converter. It takes 12-volt battery power and inverts it to 120-volts AC (alternating current). By the way, some of today’s sophisticated inverters are also very good battery chargers. When the coach is plugged into 120-volts AC shore power, (or operating on generator power), the inverter becomes a multi-step battery charger. I'm wondering if you're confusing a pre-existing CONverter with a non-existent INverter?

If you have a battery bank, you do not need an inverter to power the interior lamps. The inverter would be used to produce AC voltage so you can power 120-volt AC devices/circuits when shore power is not available. What is the brand and model number of the inverter you have in your coach? Inverters come very sophisticated (true sine wave output) while some lesser expensive models output a modified square wave. If you indeed have an inverter, it’s possible it did not come stock from the factory. Unfortunately, I’ll need a little more information to help any further.


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