Although electric water heaters look similar to their gas-fueled counterparts, there’s one crucial difference: the power source. If an electric water heater has stopped working, it’s usually due to a failing heating element. But that isn’t always the case.
Here’s what to check when an electric water heater stops working.
CHECK THE CIRCUIT BREAKER
The first action homeowners should take if their electric water heater has stopped working is to check the circuit breaker. If the breaker has tripped, switch it off and back on. If a fuse has blown, it’s necessary to replace it with a new one of the same rating.
Keep in mind that a water heater shouldn’t share a circuit with other appliances because it draws too much energy.
CHECK THE TEMPERATURE CUT-OFF
A high-temperature cut-off switch, also called a thermal switch, is installed in many water heaters as a safety device. This switch can turn off the entire water heater if the water temperature gets too high. In some cases, this switch can malfunction and turn off the water heater even when the temperatures are within the normal range.
Open the heater’s panel, locate the switch, and push the reset button to check whether this is the problem. If there’s no clicking sound or the heater is still not working, the switch is probably damaged.
CHECK THE VALVES AND PLUMBING CONNECTIONS
Homeowners who suspect leaks should inspect every valve and plumbing connection. Trapped water inside the compartment indicates a malfunction and can lead to significant damage, so it’s best to contact a professional immediately.
CHECK THE HEATING ELEMENTS
One or both heating elements could be malfunctioning, causing the heater not to work at all or to heat an insufficient amount of water. Homeowners can check and replace the heating elements themselves by following the manufacturer’s instructions or calling a professional. The latter is the better option in most cases unless homeowners have experience with these repairs.
OTHER CAUSES
Many homeowners think their electrical water heater isn’t working when the problem is actually in the pipes or connections. If the pipes are older, they may be filled with mineral deposits that restrict the flow of hot water.
Homeowners that get hot water in only one part of the house may have a problem with a cross-connection. This usually happens in mixing valves when they allow cold water to pass to the hot side.
DON’T FORGET TO CHECK THE WARRANTY
Both residential and commercial electric water heaters come with a warranty. If the heater is malfunctioning, the warranty may cover some or all of the repair costs. Call the manufacturer or a plumbing professional who’ll be able to assist you in taking advantage of the warranty.
PROFESSIONALS CAN HELP
Dealing with a malfunctioning water heater is frustrating and can impact anyone’s quality of life. If homeowners aren’t sure what the problem is and don’t want to deal with troubleshooting, they should reach out to professionals.
Trained technicians will inspect the heater, determine the issue, and recommend a solution.
Water Heater Pros provides water heater installation and replacement services for Las Vegas and surrounding area residents and businesses. Our expert technicians install both traditional and tankless water heaters for homes and other buildings with gas or electric service. We offer the highest quality installers for efficient, versatile water heaters such as Rheem. Ruud, high-efficiency tankless Navien units, and more. Ask about our installation specials.