Skip to main content ↑ ↓
Topic: Generator faults out with A/C -- "Inverter Overvoltage" (Read 582 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

Generator faults out with A/C -- "Inverter Overvoltage"

Yahoo Message Number: 79888
This has been an ongoing problem for some time, and I have experimented with various workarounds, but it is very annoying. After operating the slides, even with shore power attached or the generator running, AND the main engine running also, if I try to run either of the A/C units the generator immediately stops and the Silverleaf info display says Fault #12 (if I remember correctly) -- Inverter Overvoltage.
This is a real pain in the a**, as the dash air in these large coaches never works properly, and the roof air has to be used in order to be comfortable while traveling on a hot day.
I realize that the slide motors on my coach (2003 Magna 42' Resort) place an enormous drain on the house batteries and that the primary function of the generator is to recharge these when they are discharged, but it seems as if C.C. should have engineered the power switching mechanism in such a way that what is happening to me does not happen. I have set the charger/inverter controller to divert the minimum charge to the batteries (15 amps), as we normally use very little battery power, and usually travel 300-400 miles at a time before we use the slides again, so they should have ample time to recharge, but even this does not prevent this shutdown from occurring. The only workaround is to shut the charger completely OFF, and I do not consider that to be a good idea.
Is there anyone out there who has had the same problem and found a solution?

Thanks in advance,
Dave

2003 C.C. Magna Resort #6240

Re: Generator faults out with A/C -- "Inverter Overvoltage"

Reply #1 –
Yahoo Message Number: 79890
There are two things to turn off when running roof airs, the electric side of the water heater and the electric side of a gas ref. You should be able to watch your meters and see what the draw on the generator is before you start the roof AC. You should have nothing of both legs, IF you have draw of 15 amps or more on one leg then you are overloaded the gen with the roof air. Get both legs down to close to zero draw and then start the roof air. First staring the roof ac on a very hot day requires a lot of juice. After they have had a chance to cool down the interior they will draw a little less. Watching your coach meter system is the key to understanding where the over draw is coming from. Your batteries should be charged after driving, but bad batteries could be causing the inverter to see a heavy battery load placing more of a false load on the gen. This is the first step. Next would be to make sure the AC units are working to spec's and not bad starting capacitor.

Leonard

97' Magna 5418

Re: Generator faults out with A/C -- "Inverter Overvoltage"

Reply #2 –
Yahoo Message Number: 79938
What is the condition and age of your batteries? Sounds like your charger may be working overtime to keep batteries charged.

Jim Hughes

2000 Allure #30511
 

Re: Generator faults out with A/C -- "Inverter Overvoltage"

Reply #3 –
Yahoo Message Number: 79944
Is this a generator inverter fault code? Or a xantrex inverter code?

Rich 2002 Magna