Narrowed this down to the ASCOM driver. So software issue I think at this stage. Even with Maxim DL disconnected and off the TEC kicked in again from Neb as soon as I connected the QHY9 via the ascom driver. Even with TEC unchecked. When I pressed OK I saw the CAM drawing amps on the power supply straight away so I assume starting cooling as the TEC led turned on on the DC102. Downloading the latest ascom platform 6 now and will try again. Joys of new gear...
