Warranties: All inverters and batteries must be installed by a qualified electrical wireman or Master electrician with a valid registration with the Department of Labour. A valid electrical certificate of compliance (COC) must be issued once installed, specific to the installation of the backup or solar system.  Any warranty claim submitted without installation photos, a valid COC, and proof of a qualified wireman/master electrician installing the unit, can be rejected and will render the warranty claim null at the void.