xformer about 50 ft from home. No other homes on transformer. Pump motor is 1/5 HP. No other large loads. I started everything on Panel B (dryer, double oven, jetted tub, vacuum system, pulled the top off the septic and got the grinder pump going, 10 HP compressor in the garage) and nothing dims the lights, except that dang heat pump. I know about the cap set up for compressor motors, hadn't thought about it, I'll look into that, might be the answer. But, back to the main question, why only the heat pump? This one has me stumped!

Bob