Hello Wrenches, I just fired up a new off grid solar array with the FM100 arc fault version. RIght off I got the arc fault/ground fault red light. It was the end of day with 145 V from the array but no current. Question is, if I want to disable the function, will simply not passing wires through the current transducer effectively defeat the fault. or does the circuit board have to be pulled as well. I have a new FM100 that I bought on Ebay that I just hooked up to my home system. It is dark so I won't know until tomorrow if it is good but at least no red light and I simply did not pass wires through the ring. If it works tomorrow, is this a reasonable way to leave it wired up. Solar array in both cases are pole mounts. I pulled the arc fault circuit board on the customer's system but still a fault light.
John Blittersdorf
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