The warranty will not apply in the following cases, for example: If the selection, installation (incl. wiring) or operation of the SOMFY Products is not in accordance with SOMFY specifications, installation and operating instructions” If the selection, installation or operation has not been carried out in accordance to professional standards. If the defect is a consequence of a natural phenomenon (such as storm, lightning, etc….) or of an exterior phenomenon. If the SOMFY products are used in association with inappropriate products (e.g.: use of a control or of an accessory not   suitable for the motor), Whenever the Product functions with software which is not included in the Product, the warranty terms of such software    are communicated with such software. The lack of respect of instructions concerning the software can cause exclusion    of the warranty of the Products it applies to. If the SOMFY Products have been opened or dismantled, this warranty includes neither change of batteries or other consumables, nor removal, reinstallation, or maintenance costs.