Step 9 · Test for Proper Operation

After restoring power, allow approximately 30 to 60 minutes for the water heater to heat the water in the tank. You may hear a humming or hissing sound, which is normal during heating. After waiting, go to a faucet close to the water heater and turn on the hot water tap. Let it run until the water feels hot. If you have consistent hot water, the repair was successful. Monitor for any issues over the next few hours.