You should check the startiing capacitor on the motor. It is the most likely culprit for high draw on the start windings of the motor. Having sat for some time you may have some corrosion or such causing binding, and it may start fine now. Starting seperately pretty much confirms an excessive amp draw was present. What reason and on which unit? You'll need an amp probe and an ohm meter for further details to that question.
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Wm. F. Buckley, Jr.