1.4 During the term of the service maintenance Agreement, Customer or Representative shall forth with notify Unithai-Southern Co., Ltd giving details of all malfunctioning, breakdown or damage to and of the equipment if detected. Unithai-Southern Co., Ltd shall attend the Customer's premises to carry out inspection and service maintenance without any additional charge and when necessary advisable in the opinion Unithai-Southern Co., Ltd for repair or replacement of worn out or damage part at the expense of the Customer subject to clause 1.3 to ensure that the equipment and system are in good order. (Corrective Maintenance)