^^^^ this is exactly what it is , but I believe the OP is from across the pond and it may be a US term .
The roof has two motors, one that powers the roof up and down and one that unlatches it . The unlatch motor is located in the front of the roof panel just behind the interior roof light , under a small removable plastic panel set into the main front roof panel on the roof sections inner front edge.
Both motors can be bypassed / overridden . The roof up and down motor that powers the hydraulic Rams , has a bypass red handled cable mounted on the back edge of the roof rim inside the boot . ( trunk ! ) , the unlatch motor has an Allen key slot on the actuating cam under the panel in the roof mentioned in the above paragraph.
If the OP has refitted the roof but not pulled the bypass cable the motor for up and down will just empty the hydraulic fluid contained in the pump through the leaking ram , but as the system depends on circulation being pushed around the system there will be fluid still left in the pipes once the pump is empty . If the bypass cable is not pulled this fluid in the pipes will cause resistance in the operation of the roof when manually operated .
If the unlatch motor now doesn't work after re installing the roof , I suggest this is an electrical issue as the unlatch motor is completely electrical . I suggest a poor connection or a broken wire or earth problem .
