Why does my hot water heater keep clicking off?

Author: Mack Purdy  |  Last update: Thursday, March 5, 2026

Your hot water heater might keep turning off due to several reasons. If it's a gas water heater, it could be due to issues with the gas supply, a dirty or damaged thermocouple, or a clogged pilot tube. If it's an electric water heater, it could be due to problems with the thermostat or heating elements.

Why does my hot water heater keep kicking off?

This can be due to too high thermostat settings or insufficient water flow through the tank. Sediment buildup: Tank water heaters need to be regularly flushed to avoid sediment from building up. Too much sediment buildup can cause your water heater to overheat and turn off.

How do I stop my water heater from clicking?

Regular maintenance is key to preventing noise and extending your water heater's life. At the very least, you'll want to have a professional flush your hot water heater at least once a year to minimize sediment buildup (which, you may have noticed, is a common theme in water heater noises).

How do you fix a water heater that keeps tripping?

When a water heater starts tripping the ECO repeatedly, it's time to call a plumber for service. There's a good chance that the water in the tank is dangerously hot, and since the problem is usually caused by a failed component, it won't get better until the bad part is identified and replaced.

Why does my heater keep clicking off?

If your furnace is making a clicking noise, this is a sign of an issue occurring during the heating cycle. When you hear clicking from your furnace, you should contact an HVAC professional immediately, as this strange sound may indicate a faulty igniter or gas valve. Issues with these parts can result in a gas leak.

FREE Fix! Pilot Light That WON'T STAY LIT on Water Heater

How to get a heater to stop clicking?

Bleed your radiators

If you have a little bit of DIY knowledge, them bleeding air out of your radiators is a very easy plumbing task to carry out. Letting out the trapped air should stop the clicking and ticking noises and should enable you radiators to heat up evenly.

Why does my heater keep shutting off?

Common issues include: Old wiring or dead batteries: Replace batteries or old wiring to ensure accurate temperature readings. Thermostat location: If your thermostat is too close to a heat source (like sunlight or a heat register), it can misread the temperature and cause your furnace to keep shutting off.

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.

What will cause hot water heater to trip breaker?

On an electric water heater, only one heating element is on at a time. Photo source. However, when a thermostat goes bad, it can create a problem where both heating elements run at the same time. This draws more electricity than the circuit can handle, causing the circuit breaker to trip.

Why do I keep having to reset my hot water heater?

If the red button on the water heater keeps tripping, it can mean that your water heater isn't working at full efficiency. The largest reason behind these regular trips can be that the water heater is getting too hot, giving a signal for high temperatures.

How do you know if your water heater is about to burst?

7 Warning Signs of Water Heater Explosion
  • Leaking Pressure Relief Valve. ...
  • A Consistent Popping Noise. ...
  • Rotten Egg Odor. ...
  • Brown Water. ...
  • Gas Leak. ...
  • Improper Bad Installation. ...
  • Neglecting Routine Maintenance.

Why does my water tank keep clicking?

A rapid, persistent clicking, however, might indicate a short cycling in the pump. Its most probable cause is waterlogging in the water pressure tank. You'll usually notice this noise near the water pressure tank when the pump is switched on. If the clunking sound is bothersome, check the relay switch or check valves.

How often should I flush my water heater?

Most homeowners should flush their water heaters every 6 months or so, but if you have extremely hard water, you may want to do it more often. Flushing your hot water heater could be necessary as often as every few months depending on the mineral content of your local water supply.

Why won't my hot water heater stay running?

An electric water heater may keep shutting off because it's tripping the electrical breaker. If the breaker keeps shutting down every time you need hot water, you have an electrical problem that needs to be addressed, possibly a short in the breaker.

Why does the reset button keep popping out?

If the reset button pops back out again as soon as you press it, you may need to replace the outlet or call an electrician to do so.

Why does my Rheem water heater keep shutting off?

Potential Causes: Sediment build-up, blocked inlet screen, faulty temperature-pressure relief valve, or malfunctioning shut-off valve. Solutions: Clean the inlet filter screen, check for blockages or leaks, ensure the shut-off valve is fully open, or install a pressure-boosting pump.

Why does my hot water heater keep turning off?

A dirty pilot light may go out, a dirty thermocouple may stop working, and other dirty parts may interfere with your water heater's function. Clogs are bigger a problem. A clogged thermocouple is the most common problem that causes shutdowns.

What do I do if my heater keeps tripping the breaker?

The furnace blower motor wiring can wear down and lead to arcing and short circuits or ground faults, which will trip the furnace breaker. Other furnace parts that use electricity may also malfunction, with the same result. The solution: Call for furnace repair.

How to tell if a water heater element is bad?

Fluctuating Water Temperature: If your water goes from hot to cold without warning, or if you only get lukewarm water no matter how high the thermostat is set, the water heater element could be burned out. Hot Water Runs Out Quickly: If you're running out of hot water faster than usual, this is another sign.

Why does my water heater keep tripping the breaker?

One of the primary culprits behind circuit breaker tripping is that your electric water heater has a burnt-out heating element. The heating element is a crucial component responsible for heating the water inside the tank.

What are signs of a bad hot water heater?

Water heaters show several signs of going bad, including lack of hot water, temperature fluctuations, decreased water pressure, strange noises, rotten egg smell, visible leaks, rusty or discolored water, and increased energy bills. If your water heater is over 10 years old, it may be time to consider a replacement.

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

Thermostat Replacement

Each heating element has its thermostat; if those don't work, the elements won't either. Hiring a pro to replace a thermostat averages around $150 to $200. The part itself costs up to $20 and is easily replaceable without disturbing other components if you have some DIY experience.

Why does my heat keep clicking on and off?

Dirt, dust, and debris may block the bearings, and when this happens, odd noises are common. Are bad bearings your issue? If the furnace starts clicking but still heats normally, rusty or corroded bearings are a likely problem. Lubricating sticking parts and replacing any worn-out bearings should stop the clicking.

Why does my heater stop working after a few minutes?

If your furnace shuts off after a few minutes and starts more than eight times an hour, it may require repair. Common causes of furnace short cycling include restricted airflow, a malfunctioning flame sensor, or a poorly placed thermostat.

How to tell if a thermostat is bad?

A bad thermostat can be detected when your AC or furnace is not turning on, your HVAC systems are not turning off, the thermostat not responding, your HVAC system is short-cycling, the room temperature not matching the temperature displayed on the thermostat, and the programmed setting resetting themselves.

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