If you’re hearing weird hissing, popping, or banging from your water heater, you may think it's haunted. While there's no ghost in your house, you may have a water heater in need of repair.From what those strange noises mean to common problems we’ve rounded up everything you need to know about the sounds coming from your hot water heater. The average water heater will last anywhere from 10 to 15 years. Without service and maintenance, however, you could be cutting your water heater lifespan short. This is why checking on those strange sounds becomes important. Let’s get the mystery sound solved once and for all.