Gas or electric water heaters Find the access panel for the thermostat(s) and use a screwdriver to remove the panel. Peel back the insulation. Use a flathead screwdriver to adjust the thermostat up or down. If your water heater has two thermostats, adjust both the same amount.

How do I adjust the thermostat on my hot water heater?

Gas or electric water heaters Find the access panel for the thermostat(s) and use a screwdriver to remove the panel. Peel back the insulation. Use a flathead screwdriver to adjust the thermostat up or down. If your water heater has two thermostats, adjust both the same amount.

What does ABC mean on my hot water heater?

What temperature should you set it to? The Department of Energy recommends setting your heater to 120 degrees Fahrenheit. … Now, some water heater temperature controls come with settings that read “A-B-C” as opposed to numbers. Generally, A means 120 degrees, B means 130 degrees, and C means 140 degrees.

How do I reset the temperature control on my hot water heater?

Twist the dial on the bottom of the water heater to change the temperature. Gas water heaters are easy—they feature a single knob that controls the amount of heat being directed to the unit. Turning this knob to the left (counterclockwise) will crank up the temperature, making the water hotter.

What temperature should my hot water tank be set at?

Professionals recommend keeping your water heater set at a temperature between 130 and 140 degrees Fahrenheit. Any higher, or lower, could actually be dangerous for you and your family.

Why is my water not getting hot enough?

Sediment build up in the tank Over time, sediment can build up in the bottom of the tank, where the burner usually is. This can lead to slower heating or poor efficiency in your water heater, meaning lukewarm water rather than hot water. The solution for this is to drain the tank and to use a water softener.

Should the top and bottom water heater thermostats be set to the same temperature?

The majority of electric water heaters have two thermostats: an upper and a lower, located under two control panels. To ensure your electric water heater works as efficiently as possible, you should set both of the thermostats at the same temperature.

How do I know if my 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.

Should you adjust your water heater temperature?

Set the temperature too low, and you could turn your water heater into a breeding ground for dangerous bacteria. … Set it too high, and you could be setting yourself up for a scalding accident.

Where is the reset button on a Whirlpool electric water heater?

The thermal switch can trip if the water heater is not getting enough air. Press the small reset button in the center of the thermal switch. If it’s tripped, you may be able to hear it click.

Article first time published on

Does turning down the temperature on a water heater save money?

Homeowners will find that by turning down their hot water tank temperature by about 20 degrees to 120 Fahrenheit or 48 Celsius, they will see cost savings of about 6 to 10 percent.

Is 50 degrees hot enough for hot water?

So, what is the best temperature range for your water heater? The EPA recommends 120 degrees because it’s hot enough to keep diseases at bay, it’s not hot enough to cause scalding, it will supply enough hot water for most small families and is relatively energy-efficient.

Why are there 2 thermostats on a water heater?

An electric storage-tank-style water heater has two thermostats because it has two heating elements. The thermostats are designed so only one element is active at a time. The reason only one element is active at a time is because it allows for smaller wire sizes and lower amperage demand when in operation.

How do I increase the water temperature in my shower?

1. Remove the handle. You may need a screwdriver to do this.
2. Take off the metal cover beneath the handle, exposing the valve stem. …
3. Turn the RSL two notches in whichever direction desired, then put the RSL back in place.
4. Replace the faucet handle, then test the mixture of hot and cold water.

Why is my hot water heater not getting as hot?

When there’s no hot water, the problem can stem from lack of power, a faulty electric thermostat or a faulty upper electric heating element. … When the water’s not hot enough, the problem can be an undersized water heater, crossed hot and cold connections, or a faulty heating element or thermostat.

Why is my hot water only luke warm?

Check the Thermostat Check that the thermostat is set for between 60 and 65 degrees. If it has been bumped somehow, the temperature could have been accidentally set lower than this, which would give you lukewarm water. If the thermostat is correctly set, the problem might still lie with it.

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. A gas unit works by way of a gas flame while an electric one works using electric elements, or coils.

How do you know if the thermostat is bad?

1. Your HVAC Keeps Turning On or Off. …
2. Faulty Thermostat Readings. …
3. Suspiciously High Energy Bills. …
4. Constant Temperature Shifts. …
5. Thermostat Is Too Old. …
6. Thermostat Fails to Respond to Changed Settings. …
7. Your HVAC System Short Cycles.

How long does a water heater take to warm up?

The average gas heater takes between 30 and 40 minutes to fully heat up the water in its tank. The average electric heater takes about twice as long as the average gas heater to fully heat up the water in its tank, so you can expect it to take between an hour and an hour and 20 minutes to heat up.