All systems come with a 30 day repair guarantee and will not be refunded or exchanged . If warranty stickers are missing altered or removed in any way this will void any warranties written or implied. If it is decided that it is used misuse or improperly shipped back to us it will be deemed as void as well so please package any returns well. We will warranty any and all issues that are found to be something that we should have caught and it keeps it from working as intended unless stated in the title of the item bought. Any water damage fall damage or misuse will result in the items warranty being null and void.