How Electric Tank Repairs Usually Go
An electric water heater has few moving parts, so repairs are usually simple once the right part is found. Most calls come down to a burned-out or scale-coated element, a failed thermostat, a tripped high-limit switch, or a breaker or wire problem. We test each with a meter, explain the result, and tell you the price before any work.
A standard electric tank has an upper and a lower element, each run by its own thermostat, fed by 240 volts, with a high-limit switch that cuts power if the water gets too hot. Nearly all of those parts can be swapped without replacing the tank.
If you aren't sure what kind of heater you have, or want the first checks when the water goes cold, start with our no hot water troubleshooting guide. For gas, tankless and other repairs, see our main water heater repair page.
Electric Water Heater Repair Apache Junction, AZ: What We Fix
- Heating elements: burned out, shorted to the tank, crusted with scale, or ruined by being powered while the tank was empty.
- Thermostats: stuck open (no heat), stuck closed (water far too hot), or set unevenly.
- High-limit switch: tripping once after a storm, or again and again because something else is wrong.
- Power supply: a failing double-pole breaker or loose, scorched wires at the top of the tank.
- Element gasket leaks: water seeping out behind an access panel.
Heating Elements: Testing, Scale and Dry-Fire
How do we test a heating element?
With the breaker off, we disconnect the element's wires and check it with a meter. A good element reads a set resistance across its two screws and shows no path to the metal tank. One that reads open has burned through. One with a path to the tank is shorted. We test the thermostats at the same time, because a bad thermostat can make a good element look dead.
Burned out or just buried in scale?
In water that runs about 13–16 grains per gallon, minerals coat the element like a shell. The coating traps heat, so the element runs hot and fails early, the lower one most of all, since settled grit piles up around it. If it sizzles while heating, our post on a water heater popping or sizzling explains why. A new element dropped into a pile of grit won't last long either, so a flush at the same visit is often worth it. Some tanks can take low-watt-density elements, which run cooler and tend to scale more slowly. Our page on Apache Junction's hard water covers where those minerals come from.
What is a dry-fired element?
An element that gets power with no water around it can burn out almost at once. It happens most after a tank was drained, or when a new heater's breaker is switched on before the tank is full. The rule is simple: the breaker stays off until water flows steadily from a hot tap.
Thermostats and the High-Limit Reset
Each element has a thermostat clamped to the tank behind its panel. The upper one heats first, then hands power to the lower one; on most standard tanks the two never run together.
How do I reset the high-limit switch safely?
The red button behind the upper panel is the high-limit, also called the ECO. Use this order every time:
- Breaker off first. Switch the heater's breaker fully off before you touch the panel. The terminals behind it carry 240 volts.
- Open and press. Remove the upper panel, fold back the insulation without touching any wires, and press the red button firmly.
- Close it up. Put the insulation and panel back on.
- Breaker back on. Turn the breaker on and give the tank an hour or more to heat.
If it trips again, stop and call us. A second trip means a part is overheating the water.
Why does the high-limit keep tripping?
The usual causes are a thermostat stuck closed, an element shorted to the tank, or a loose wire heating up at a terminal. Water at 120°F, the DOE's suggestion for most homes, can still burn with a few minutes of contact; at around 140°F a serious burn takes only seconds. If water or steam is pushing out of the relief valve pipe, or the tap water is much hotter than usual, switch the breaker off and leave it off until the heater is tested.
Safety: Never cap, plug or remove the relief valve to stop it discharging. It is the last protection if a thermostat sticks and the high-limit fails.
Breakers, Wiring and 240-Volt Power
Most electric tanks are fed by a double-pole breaker, often 30 amps, on a circuit just for the heater. If it sits in the middle position, it has tripped.
Is a breaker trip a heater problem or a wiring problem?
If the breaker trips the moment it's turned on, a shorted element is the likely cause, and it's quick to find. If it trips after running a while, or the breaker feels warm, look at loose or scorched wires, a worn breaker, or the junction box on top of the tank. We check the connections at the heater. Problems inside your panel or the wiring back to it belong to an electrician, and we'll say so plainly.
Can monsoon storms damage an electric water heater?
Sometimes. During monsoon season, June 15 to September 30, outages and surges can trip a breaker or the high-limit, and a strong surge can occasionally damage a thermostat or element. It isn't routine. Our post on monsoon power surges and water heaters lists what to check after a storm. SRP is the electric utility for most of Apache Junction, so report outages to them.
Leaks at an Element Gasket
Each element screws into the tank through a rubber gasket. Heat, age and hard water can harden it until water seeps past, leaving rusty streaks below a panel or wet insulation. A new gasket, usually with a new element, often fixes it; if the insulation is soaked all the way around, the tank itself may be failing. Our page on a water heater element gasket leak explains how to tell the two apart and how the repair is done. When a leak has also tripped the breaker, see a heater leaking with no hot water. If your tank is leaking now and needs to be stopped tonight, our Apache Junction leak repair service is open around the clock.
Electric Heaters in Mobile Homes and Park Models
Many manufactured homes and park models here use electric tanks, often smaller ones in a closet that opens from outside. The parts work the same way, but space is tight and some small tanks have only one element. See our mobile home water heater page, or park model water heater repair for RV resort units.
Should You Repair or Replace an Electric Tank?
Electric parts are cheap next to a new heater, so the tank itself usually decides it.
- Repair it when the tank is dry, under about 8 years old, and the fault is an element, thermostat, high-limit or wire.
- Think it over when the tank is near 10 years, both elements are crusted, and sediment is heavy.
- Replace it when water comes from the tank body or soaked insulation, or rusty hot water comes with repeated element failures.
Our repair or replace guide goes deeper. Swapping an electric heater for one with the same or lower amperage, where bonding and a disconnect are already in place, is one of the cases Apache Junction's code exempts from a plumbing permit. Rules change, so check our water heater permit page and confirm with the city for your address.
What Electric Water Heater Repairs Cost
Angi reports an Apache Junction average of about $646 for water heater repairs, counting every type of job together, with most between $422 and $1,196. Treat that as a broad local benchmark, not the price of an element or thermostat. For a new heater, Angi's Apache Junction install average is about $1,136 (typically $819–$1,320). Our repair cost breakdown explains the factors, and we give you the number before we pick up a wrench.
Booking Electric Water Heater Repair in Apache Junction, AZ
Call +1 480-863-0807, any hour. Have the tank's age, the rating label (a photo is ideal) and what you've already tried. Before you call, switch the breaker off if it keeps tripping and leave it off; for electric water heater repair in Apache Junction, AZ, a tank that's safely powered down is the best place to start.
Electric Water Heater Repair Apache Junction, AZ: FAQs
How long does it take to replace an electric water heater element?
The swap itself is fairly quick. Most of the time goes into draining the tank below the element, refilling it, and pushing the air out before the power goes back on. After that, a full tank of cold water takes a few hours to heat. Plan on hot water returning later the same day, not right away.
Why is my electric water heater only lukewarm after a new element?
Usually the problem was never just the element. A thermostat that is stuck open, set too low, or no longer passing power to the lower element will leave the water lukewarm even with a new element. Heavy sediment can also bury the lower element. Testing both thermostats and checking the settings normally finds the cause in one visit.
Can a bad electric water heater element trip my breaker?
Yes. An element whose outer sheath has cracked can short to the metal tank, and the breaker trips to protect the circuit, often the moment power is restored. Leave the breaker off once it trips a second time. Resetting it over and over can damage the breaker and the wiring, and it won't bring the hot water back.
Should both thermostats on an electric tank be set the same?
In most homes, yes. Setting both to about 120°F keeps the tank heating evenly and matches what the DOE suggests for most households. Setting the lower one much higher pushes that element harder and speeds up scale on it. If you need hotter water for a specific reason, ask us about a mixing valve rather than raising one thermostat.
Do electric water heaters need flushing like gas ones?
They do. Sediment in an electric tank settles around the lower element instead of over a burner, which coats it and shortens its life. In hard water, a yearly flush helps the lower element last and keeps recovery time normal. Electric tanks also have an anode rod that needs checking every few years, just like gas tanks.