Your water heater works hard behind the scenes in your home, providing hot water for your taps and appliances. But sometimes it works a little too hard, leading to problems that could require professional service. Changes in water temperature and visible signs of trouble should never be ignored.

However, you can troubleshoot and resolve some issues yourself. Remember: always turn off the power at the circuit breaker before doing any troubleshooting work on your water heater!

Water Temperature Issues

A very common problem when dealing with water heaters. First, check whether the unit is receiving power. If not, the circuit breaker may have tripped. Go to the electrical panel and switch the breaker off and then back on.

If the water heater doesn’t start up again, the high-temperature limit switch may need to be reset. To reset it, turn off the circuit breaker and remove the panel on the heater to access the upper heating element. After removing the insulation and safety guard, press the red reset button above the upper thermostat. Then replace all the components you removed and turn on the circuit breaker.

The Water Isn’t Hot Enough

This is a sign that your thermostat is having problems. You can try raising the thermostat temperature. However, lukewarm water is often due to a water heater problem you can’t fix yourself. Electric tankless heaters may stop providing hot water because of a worn-out heating element. To replace the element, drain the heater, remove the cover, and disconnect the wires. It’s often a sign the unit has a faulty heating element, or that the hot and cold connections are crossed. You’ll need a professional to correct these issues.

The Water Is Cold

Cold water is usually caused by either a lack of power, a faulty thermostat or a faulty heating element. Start by eliminating power as a suspect by resetting tripped circuit breakers and replacing blown fuses. Next, check power switches to make sure they are turned on and power indicators are lit. Finally, check the thermostat to make sure it’s receiving power.

The Water Heater Is Leaking

Water leaks usually are caused by leaking valves and plumbing connections, but they can also be related to tank problems. Leaking water can cause significant damage to a home, so it is important to fix the leak as soon as possible. Look for loose plumbing connections. Tightening them can reduce or stop the leak, but be careful not to overtighten anything. If tightening them doesn’t stop the leak, the gasket may need to be replaced by a professional.

Water Is Rusty/Discolored

If your water starts to look murky or rusty, it may be a warning sign that your water heater is corroding. There may be corrosion in the pipes as well. Replacing the anode rod in the tank can sometimes resolve this hot water heater problem. If the water also has a rotten egg or other foul odor, there may be bacteria in the tank. A professional is usually needed to fix these issues unless you have experience servicing the tank.

Unusual Noise

Odd noises such as rumbling, popping, banging, or hissing often come from boiling water, which occurs when the bottom of the tank overheats due to a buildup of sediment. Flushing the tank can get rid of the sediment. Even experienced DIYers should avoid working with the hot water tank to prevent potential problems, such as a leaking gas line, vent line (called breaching), scalding, or a potential flood.

For instance, sizzling, hissing, and crackling can result from electric water heaters because of sediment build-up in the base of the tank. Annual flushing and draining of the water heater can address this.

Loud, unusual noises can also mean the heating elements are burning out. You will need a professional to replace them.

Benjamin Franklin Plumbing Can Fix Your Water Heater Problems

Our expert team is familiar with all common hot water heater problems, they can quickly address issues big and small. Contact your local experts at Benjamin Franklin Plumbing without delay.