Norcold overvoltage and flickering lamps.

[Hartman2112]

So I have an odd electrical issue that I am trying to wrap my head around. Last night I turned on our space heater in the bedroom and it acted like the fan motor was burnt up or had some sort of drag on the motor. Then I noticed that the wife's 120v lamp was flickering, so know I'm thinking it's a voltage issue. Also our Norcold is showing an A6 code for Over Voltage. The Progressive EMS is showing 121-122 volts which is what it normally reads. So it looks like I have normal voltage coming in and it everything also works like it should if I unplug and run off of the inverter. I can't find any obvious problem spots (burnt wiring, loose connections). Any help would be appreciated!

[Hartman2112]

Also, it is only happening on the bedroom, kitchen, and refrigerator circuits.

[MSHappyCampers]

Our Norcold 1200 sometimes shows overvoltage when on inverter. I checked the voltage one time and it was not excessive. I just ignore it now!

[twinboat]

Your surge thing is before the transfer switch, so your not seeing the voltage at the breakers. Find and uncover the transfer switch and check for loose or burnt connections. Pull the shore cord first !

[RandyMan]

Originally Posted by Hartman2112

Also, it is only happening on the bedroom, kitchen, and refrigerator circuits.

These also happen to be the most likely circuit for an inverter if you have one.

Are you using a heater on this circuit? I had a meltdown one time due to a heater putting too much load on the circuit over time and caused the wiring to melt in the junction box.

It was plugged in at the front of the coach in an outlet. We have since ran this to a dedicated line directly to the pedestal .