In the event that any part of your Frontpoint System, except for screens, wiring, lightbulbs, l.e.d.’s, l.c.d.’s, expendable batteries, and foil tape, shall become defective within three (3) years from (i) the date of initial activation of the equipment containing such part at the Premises (“Warranty Period”), Frontpoint will replace or repair the defective part without charge to you (“Warranty”) so long as you are an active Frontpoint customer in good standing. They may use reconditioned parts in making repairs, but their warrants the replacement parts only for the remainder of the warranty period. This warranty is not assignable. If you discover a defect in the products you have purchased from Frontpoint, you should immediately contact their in writing or by telephone, at the address and telephone number and fully describe the nature of the defect so that repair service may be rendered.