Another note, it throws the 1087 Fault but continues to operate properly, while I am on site. It is only a 2stop, but seems to throw the 1087 Fault on the downward trip, as soon as it lands on 1.

1087 - Valve Contact OFF Error
Possible causes:
Stuck Valve Pilot Relay
Stuck Motor Contactor Auxiliary Contact
Defective MCD Input
Bad CPU Card
Magnets at Top are Bad or in the Wrong Sequence

Help!