Stevef.matrix
New member
Is this possible? Evidently so. We have and A/C unit with two compressors. The voltage imbalance is .85% and the current imbalance on both comps. is 13%.The main fan imbalance is 9.8%. The power supply feeding the unit is an open delta. (One Stinger leg to ground) We have changed line phases, a-b,b-c, c-a, etc. and the problem stays with the line indicating the problem is not the equipment. Does anyone know what could cause this and how to correct it?