Please ensure Your AGL METER CHANGER is trained and knows the correct procedure for your specific invertor. Ours did not and AGL refuses to take any responsibility for the fact our invertor is now useless. As customers of 25yrs standing AGL has treated us appallingly. They sent a serviceman out to assess the situation who did not bother to bring any tools, had only seen a couple of invertors and had no idea how to assess the situation let alone fix it. Please ensure you meter changer knows what ...