Astra solar sensor fault

Sorry to hear about the heating problems. Is it possible that the sensor requires calibration? This might address the error being stored.

Thanks for the quick response! How would I go about calibrating the solar sensor? Is that something I can do myself, or does it require special equipment?

Given the symptoms and potential for electrical issues, I recommend consulting with a qualified technician. It would be best to go to the workshop, in my opinion.

Thanks for the advice. I took it to a local garage and they confirmed it was a loose connection as suspected. They fixed it for 95€. All good now!