First, take out the instruction manual to read through the operation instructions. If the item is still faulty, please call our hotline (67430911) for appointment and bring the product (with your online order receipt) to our service center within 5 working days from delivery for product exchange. If it is 6 working days but less than a month, we welcome you to call our hotline for appointment and bring the product to our service center for repair/servicing. Our service centre address is at 12 Changi North Way #03-06 Singapore 498791.