When purchased, this lift's power steering worked around 80% (note: all on 80%, all off 20%) of the time, but over the past year it has grown worse to where it no longer works at all. As of now, when you turn the machine on, the PS contactor contacts, but as soon as the steering wheel is turned a few degrees, the contactor disconnects and won't reconnect until the machine is turned off and back on again. Purchased a service manual for the unit and it led me to replace the PS controller with a refurbished unit, however the symptoms remain unchanged. Not sure if the refurbished controller was good to begin with. If anyone has any ideas as to other possible causes/remedies before I purchase another controller, it would be much appreciated. Thanks.