Community Forums

rstp1953 · 02-17-2019, 05:07 PM

Help! The remote for the inverter showing High Volts AC. I reseted the inverter still going on. Any suggestions?
PWR FAULT High volts AC– This fault causes the charger to be disabled because avery high AC voltage (>150 VAC) has been detected on the AC input.
What can cause this?
I disconnect the power from the pedestal and tried with the generator and I have the same fault.

BrianGlenn · 02-17-2019, 05:34 PM

Very rare to have shore power AND onboard generator create a high AC voltage condition.

You physically disconnected shore cord, reset inverter and started onboard generator?

Do you know model and age of inverter? Possibly the reset for high voltage may need to be done again

Only other idea is the inverter self diagnostics/meter have gone wonky. Have you asked park to actually measure voltage at your pedestal?

vsheetz · 02-17-2019, 05:38 PM

As commented in another forum, likely a neutral problem in the transfer switch or main breaker panel.

twinboat · 02-17-2019, 05:42 PM

It could be a neutral problem, but because it comes up on both shore and generator power, it will only happen if you have a 240 volt generator.

rstp1953 · 02-17-2019, 05:58 PM

Model Magnum ME 2012, on a Allegro red 2012, 34QFA
I have also a Progressive EMS PT 50 X and didn't detected anything. the reading is btw 119 to 123.5.

BrianGlenn · 02-17-2019, 06:26 PM

Disconnect shore power. As others mentioned - Check neutrals in AC panel - if non inverter loads are working OK then it may be neutral connections at inverter. Or back to sub panel.

Brian

ka5gyo · 02-17-2019, 07:54 PM

the Progressive EMS PT 50, could have a bad board that needs replacing. It also has a pot that is adjustable for voltage readout. Need to check its accuracy against an accurate vom.

cavie · 02-17-2019, 07:59 PM

Ditch the EMS. Start at the Ped with a multi-meter. Then go to the gen with the muiti-meter.

rstp1953 · 02-21-2019, 05:56 AM

Update, I called Magnum and they think it is a loose connection somewhere, they don't think it is the inverter. I called Tiffin and they basically saying the same. I checked the AC panel for loose connection, I checked the Transfer Switch and the inverter couldn't find anything yet. Any suggestion ?

BrianGlenn · 02-21-2019, 07:07 AM

How did you check for loose connections? Measure lugs with a digital volt meter? Typically I would de-energize, check for voltage, then loosen and reseat wire/connector and retighten.

You can look for any arcing on stripped wire end at the same time.

Brian

BrianGlenn · 02-21-2019, 12:07 PM

One other suggestion. Any areas where wire could be exposed to damage in the circuit? Ie wire may be pierced/chaffed from body structure/installation? A continuity test is difficult with the wire ends not proximal to each other. But there are specialized electrical tools available to test wire integrity.

Low probability but has been known to happen - I drove a nail through a neutral in my sticks and bricks. Poor installation from previous handyman. That's my story and I'm sticking to it.....