MemberDecember 8, 2019 at 5:44 pm
I’d check the motor brake is functioning, after that test the current through the motor during travel around 3A down 3-7A up (no load on lift) are you measuring the batteries with a multimeter as they have a tendency to confuse things with the voltage appearing good but actual power available being low. How old is the lift as worn brushes may well be a cause.
It’s always worth giving the pcb relay a tap with a screwdriver handle in case of carbon build up across the contacts or welded contacts.
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