Cover no longer opens, R129 / 1991

Hello together. The roof has closed normally and could not be opened the next day. The roof switch flashes, no click of the relays (deck control housing open) also the windows remain above, i.e. the whole process is not started all fuses (in the trunk ) checked, on the control unit I suspended 12 V voltage, battery 24 hours. Already two years ago I had the same problem, then cover control unit 129 820 00 97 (07) replaced. or another hidden fuse? Thank you in advance