We stand behind our products and will replace any malfunctioning repeller, lantern, torch or accessory while it is still under warranty. If you feel your product is not working as designed, please call Customer Service at 1-866-753-3837 or use the contact us form on our website. Our agents will gladly assist you. A copy of your receipt and a picture of your product is required before a product exchange can be processed. Thermacell reserves the right to request product back before an exchange is shipped.