Warranty may be affected due to commercial applications. Arrived onsite to customer having a 5 year old whirlpool water heater not working. Customer had multiple code violations on water heater, pan drain was not run to exterior of building, t and p was ran in a non approved material, no sediment trap was present on gas valve, gas line had a street 90 present as well. Customer tank also had puddle of water present on the top of heater coming from what believed to be the connection inside the tank. Offered customer diagnostics to see what was wrong with the tank as well as pricing for replacement unit. Informed customer that since they are a commercial building the warranty of the tank may not be 6 years and is more then likely only 1 year. Customer decided to replace water heater. Before replacement assured gas was present in gas piping. Provided and installed new Bradford White 50 Gallon Natural Gas Water Heater with associated fitting to complete install. Once unit was ins