If you have encountered a problem with your solar heating system, first of all we recommend you consult the use and maintenance manuals. Usually, when a problem arises with the solar heating system, the causes may depend either on the user or on the installer.
We always advise against attempting to make complex repairs on your own solar heating system unless you are authorised and qualified to do so. The guarantee certificate specifies all solar heating system failures which are covered by the guarantee. Normally both are enclosed with the product. We recommend you keep them in a safe place.