How do you tell if a heating element in a hot water heater is bad?

Author: Brenda Beatty  |  Last update: Friday, April 24, 2026

Signs of a Bad Heating Element These signs include: Warm or cool water when you turn on the hot water handle. Hot water that does not last long. Having Your water heater's circuit breaker trip frequently.

How do I know if my water heater needs a new element?

To test the element, you must measure its resistance. Switch the multimeter settings to measure resistance and place the nodes on the two screws. A functioning heating element should read between 10 and 30 ohms. The heating element is broken if the meter reads 1 or 0.

How to tell which heating element is bad in a water heater?

Place one probe of the multimeter on the loosened screw and the other probe on the remaining screw attached to the face of the heating element. The multimeter should read between 10 and 30 ohms if the heating element is working correctly.

How much does it cost to replace a heating element in a hot water heater?

Heater Element Replacements

Having a water heater element repaired professionally usually costs about $200 to $300.

Can you change a hot water element without draining the tank?

If this question is pertaining to a electric tank water heater - No. The tank must be fully drained and cooled before you can change the heating element. Normally there are two, a high and a low elements. If you must change one, order both.

How To Test A Water Heater Element

How to check heating element?

Check the resistance of the upper heating element using a multimeter. Measure the resistance between the two screw terminals on the upper heating element. A good element will have a resistance between 5 and 25 Ohms. Select below whether the element was in or out of range.

How long should a hot water element last?

Electric and gas storage tank hot water systems are the most common residential hot water systems. With proper maintenance, like annual flushing, these heaters can last 8-15 years on average. Hard water, sediment build-up, and high water pressure shorten lifespan.

Can I replace a water heater element myself?

If you have a screw-in water heater element, you can use your socket wrench to remove it. Just turn the element counterclockwise, and make sure to remove the gasket. You'll need either a 1 1/2-inch socket or the socket that came in your repair kit.

How much is labor to install a hot water heater?

In general, plumbers cost $45 to $200 per hour, while electricians cost $50 to $100 per hour. Expect the following average price ranges for labor alone: Replacing a tank-style water heater: $150–$450. Replacing a tankless water heater: $600–$1,850.

How much should a plumber charge to replace a thermocouple?

If your thermocouple goes bad, there is only one thing to do: Replace it. If you hire a professional plumber to do this, it may cost up to $200 for the labor.

Why is my water not getting hot after changing element?

"Replacing A Heating Element"

It may take several hours for a newly installed electric water heater to reach normal operating temperature. If you don't have hot water after two hours (water not even warm), first check to make sure the water heater is getting electrical power.

What are the symptoms of a bad thermostat on a hot water heater?

Signs Your Water Heater Thermostat Is Faulty
  • You have no hot water.
  • You're running out of hot water quickly.
  • The water is too hot.
  • It takes a long time for your water heater to heat the water.
  • You keep having to reset the high-temperature limit switch.

How to test if a hot water heater element is bad?

Touch one of the multimeter probes to the loosened screw. Touch the other probe to the other screw attached to the face of the heating element. If the heating element is functioning properly, the multimeter should read between 10 and 30 ohms.

Why is my hot water sometimes not hot?

Water from a water heater that is too hot or not hot enough may be the result of a broken thermostat or heating element, but it can also be caused by an incorrect setting. The factory temperature for water heaters is 120 degrees Fahrenheit, but this may be too hot or not hot enough for some users.

What causes a new water heater element to burn out?

A sudden voltage increase could overload a heating element of your water heater, burning it out. All elements of a water heater have voltage ratings. Voltages exceeding the rating of an element will burn it out.

Why do plumbers charge so much to replace water heater?

This is because the process of installing a new water heater can be quite complex and often requires the use of special tools and equipment. Additionally, the cost of labor for this type of project can be quite high.

How much does Lowe's charge to install a hot water heater?

The price depends on whether you want an electric or gas water heater. The basic installation fee at Lowe's is around $320. But, before the contractor can set up the heater, they'll need to come to your home to check the conditions and determine the best location for it. This inspection will cost you an additional $34.

Can I replace a water heater myself?

In short: Yes, you can install a water heater on your own. There are, however, a lot of things to take into consideration. For one, you need to know what you're doing, and you need to have the proper paperwork or permits to do it.

Do you have to drain a water heater to replace an element?

You don't have to go into the take to access them. Next, figure out which heating element you need to replace. If you're only replacing the top heating element, you only have to empty the tank until it's not in the water. If you have to replace both or just the bottom one, you'll need to empty the whole tank.

How do I know which element to replace on my water heater?

The replacement element must be the same voltage and wattage as the element being replaced. Never exceed the nameplate rating on the water heater. Check the nameplate on the heater to determine the proper voltage/wattage combination is correct for your heater.

How long does it take to replace a hot water heater element?

It's time-consuming: Replacing a water heater element usually takes around 2–3 hours if you try and do it yourself. However, it usually only takes 1–2 hours for a professional. A professional has the right tools and skills to do the job.

Can a hot water heater last 20 years?

Water Heater Lifespan

With proper maintenance, a tank water heater tank should last six to 12 years. A tankless water heater can last for more than 20 years. Check your water heater's warranty for the most accurate timelines.

Why do hot water elements fail?

The rubber gasket around the element can perish and breakdown, which can lead to a leaking tank. The element itself can corrode over time and short itself out. The thermostat can burn out or the tank can get too hot and trip the high limit cut-off on the thermostat.

Which water heater element burns out first?

The Plumbing Wizard

The upper thermostat puts power to the upper element first. If the upper is burned out, there will be no heat. The lower only comes on, only if the upper has been satisfied. So you can wind up with less hot water if only the upper is working.

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