Replacements are 100% free with DHPP. Just call tech support, tell them the sat button won't light up anymore, even after new batteries. Saves 1 hour of time that they will try and get you to do everything from unplugging wires, hard reset, etc. They will UPS you a replacement free of charge as long as you have the DHPP plan on your account. Arrives usually within 2 days of your call to them.