How To Replace Gas Water Heater Thermostat?

Can you replace a thermostat on a gas water heater?

The water heater thermostat is part of the gas valve. They cannot be replaced separately from the valve. If you think you are having a problem with your gas valve, see the article, ‘Troubleshooting Gas Valve Problems’ for more information.

How do I know if my gas water heater thermostat is bad?

If you turn the hot water tap and cold water runs out, then the upper thermostat is damaged. But if the water is hot that becomes later becomes cold, then you have a damaged lower thermostat.

Where is the thermostat on my gas water heater?

On most gas water heaters, the gas control valve, which includes both a thermostat and a heat limiting device, are located on the outside of the unit, near the bottom. It can be identified as the component with the controls for temperature and the pilot light.

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How do you reset the thermostat on a gas hot water heater?

There are a few types of problems that can cause your water heater to overheat the water in the tank, and when that happens, the emergency cut off (ECO) kicks in to shut down the appliance completely. To reset it, you’ll need to press the red reset button on the ECO, which is usually attached to the upper thermostat.

What happens if you don’t flush your water heater?

What Happens if I don’t Flush My Water Heater? Leaving sediment build up in your water heater can not only cause it to work harder, but also lead to some serious problems. Things such as pipe bursting, loss of water pressure, or even the break-down of the tank itself.

How much does it cost to replace a water heater thermostat?

The average thermostat replacement cost is between $100 and $300. Most other repairs are equally affordable. There are two main types: gas and electric.

Why is my gas hot water heater not getting hot?

No Flame – Many gas water heaters have a pilot light that will ignite the burners when the unit is turned on. If the water heater has a bad thermocouple (the part that shut off the gas when no pilot flame is present), it can also extinguish the pilot light. Look to have the thermocouple replaced.

Is there a reset button on a gas water heater?

A water heater reset button, usually red, is located in the center of the limit switch just above the water heater thermostat. The water heater limit switch is a safety device that will shut the power down to the water heater if something malfunctions and the water gets to hot.

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Do water heater thermostats go bad?

Usually, when the upper thermostat goes bad, you will have no hot water at all, while a bad lower thermostat makes itself known when there is only a small amount of hot water before the tap water goes cold. Once you have determined the faulty thermostat, you can replace it and have your hot water heater working again.

What causes a water heater thermostat to burn up?

Usually the cause of overheated water is a lower heating element that has a leak to ground. You need to turn power off to the heater. Disconnect both wires to both elements.

Why do I have to keep resetting my hot water heater?

The reset button usually trips for safety to prevent the tank from overheating and potentially becoming a bomb. If your heater is continuously tripping you should call a Orlando plumbing company to replace the thermostats. We usually recommend replacing all old components with new parts this includes the elements.

What trips the reset button on a hot water heater?

The reset button: a red button located on the water heater itself (just above the thermostat) that trips when the water temperature exceeds 180 F. The reset button is sometimes referred to as the “ECO” (emergency cut off) or “high limit switch”.

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