Problem: Tank Making Noises
If you hear rumbling, popping noises, or a high-pitched whine, you could be hearing water boiling inside your tank.
Excessive buildup of sediment in the bottom of the tank can cause your water heater to overheat, resulting in boiling water. The first thing you want to try is draining the tank, and if that doesn't solve the problem, we suggest replacing the faulty tank.
How To Repair A Gas Water Heater
When repairing a gas water heater, you are dealing with hot water and dangerous gas. Before you try any of these repair solutions, turn off the gas to your heater. Once that's done, let's begin.
Problem: No Hot Water
Your gas water heater is heated by a burner and pilot light. Before you get started, check to see if other appliances in your home are still receiving gas, such as your oven and stove.
Solution #1 No Gas
Check your gas shutoff valves around your home. There are three possible locations where you can find them. You want to make sure all of them are on.
Streetside valve - Your main shut-off valve is located just before the gas meter outside your home.
House side valve - Inside your home, where your gas pipe enters your wall, you can find your house side valve. The gas line is usually made of black iron pipe. Don't confuse it with your gray galvanized water pipe.
High-pressure systems - If you have a newer home, look for a flexible copper pipe and shutoff valve closer to your water heater or furnace.
Solution #2 The Pilot Light
If your gas is on, but your pilot light is still off, you may have to turn it on manually.