What should I do before using the washer if my hot water hasn't been used in two weeks or more?

Turn on all hot water faucets and allow them to run for several minutes before using any electrical appliance connected to the hot water system. This prevents the possibility of damage or injury from built-up hydrogen gas that can accumulate in the water heater. Do not smoke or use an open flame during this process since the gas is flammable. [Page 3]