MPE803A AC Circuit Interrupter Nuisance Trips

[Mweiss]

Is there any way to adjust the threshold at which the AC circuit interrupter trips? It's supposed to be at 105%, but it's happening at 95% load after about ten minutes charging batteries with EG4 Chargeverters on my solar power system.
I've seen people loading these to 133% without tripping, so I'm wanting to know how to improve the headroom adjustment as it's tripping too low a current.

 

[Jeepadict]

Have you confirmed with an amp clamp & multimeter that your gauges are telling true?

Sent from my SM-G970U using Tapatalk

 

[Mweiss]

I'll need to confirm with a clamp on meter.
Also will check the burden resistors.
Thanks guys!

 

[DieselAddict]

The load meters are estimates only. Get a good clamp on meter and know for sure what your load is.

If you find that it is indeed tripping early, get the TM and check the burden resistors. The resistors could be bad or you could have a bad connection somewhere in that circuit.

 

[Mweiss]

Another rainy day, solar is not producing, so started up the MEP803A for the second day in a row (ran it two hours yesterday to top off batteries). Today, the circuit interrupter would not engage. Had 240VAC on the meter, but nothing at the output.
Started measuring the resistors at the far left side behind the error panel. Found R15 to be loose and jiggly. But no continuity. So I temporarily rigged up a 1K and a 200 ohm 5W resistor pack and alligator clipped it to the connections. Was able to engage the ac circuit interrupter and the unit is now making electricity.
Not sure why that resistor became loose. Body has no visible crack, but it's loose on it's metal part that runs through the center of it.
I'm going to order a heavier duty resistor just in case it was under rated for the application. The rest of the resistors read good.