This thing didn't have power going to it for a few of days. On plugging it back in the cam spins round and round constantly taking about a minute to go thru all the cycles. Display shows UD synch. Vendor is of no help. Called pentair water tech support. They recommend compressing the gears top to bottom by hand to be sure all is well, being sure the circuit board is in correctly, and using a paper clip to short a capacitor on the board while unplugged. Doing that then pressing regen while plugging unit in for a hard restart doesn't work. Is this unit in need of replacement or is there anything else to try? Thanks