Do Electric Water Heaters Have a Reset Button?

As a home improvement expert who has helped hundreds of homeowners install, repair, and maintain electric water heaters, I‘m often asked if electric heaters have reset buttons. In this comprehensive guide, I‘ll share my knowledge on electric water heater reset buttons, troubleshooting hot water issues, and maintaining your heater to provide abundant hot water for years to come.

What Causes an Electric Water Heater to Stop Working?

Before diving into reset buttons, it‘s important to understand what causes electric water heaters to stop heating properly in the first place. In my experience, these are the most common culprits:

Sediment Buildup

Over time, minerals and sediment from your home‘s water supply can gradually build up in the tank. This sediment eventually forms a solid insulating layer, preventing the water from making direct contact with the heating elements. No direct contact means no efficient heat transfer. To make matters worse, as the sediment accumulates, it takes up storage capacity in the tank, reducing the amount of hot water available.

Based on water quality reports from major metro areas, most tap water contains some level of calcium, magnesium, and silica sediment. While small amounts won‘t cause issues, areas with very hard water may experience heavy sediment accumulation in as little as 2-3 years. I always recommend flushing your water heater annually to clear out sediment and prolong its life.

Damaged Heating Element

The heating element contains thin metal coils that heat up when electricity passes through them. These elements operate constantly while the heater is on and have a typical lifespan of 5-10 years. Over time, small cracks or fissures can form in the coils, causing them to eventually snap. If the element stops heating entirely, you‘ll experience a lack of hot water. Partial breaks can also cause the element to work inconsistently or inefficiently.

Loose Electrical Connections

Electric water heaters rely on consistent electrical connections to power the heating elements and thermostat. Vibration from the heating cycles, as well as normal wear and tear, can cause the wire connections to loosen over time. Corroded or loose wires leading to the heating element will prevent it from getting adequate power to properly heat the water.

Thermostat Malfunction

The thermostat controls the desired temperature setting for the hot water. It communicates this to the heating element so it knows when to kick on and off. If the thermostat fails or gets stuck, the heating cycles will become erratic. This could mean constant heating, leading to wasted energy, or no heating at all. A broken thermostat must be replaced to maintain the proper water temperature.

Tripped Circuit Breaker

Electric water heaters typically operate on a 240-volt circuit with 30-50 amp service. If this circuit experiences an overload, commonly from a loose connection, the circuit breaker can trip, cutting all power to the water heater. Until the breaker is reset, the water heater cannot operate.

How Long Does it Take an Electric Water Heater to Reset?

Once you‘ve diagnosed and resolved the underlying issue, the actual reset process is quite fast. Here are the steps:

1. Turn off power to the water heater at the breaker panel.

2. Drain the tank either through the drain valve or by attaching a hose to the pressure relief valve.

3. Allow the tank to fully drain, which typically takes 5-10 minutes.

4. Close the drain and re-fill the tank by turning on the cold water supply.

5. Allow 30 minutes for the tank to completely re-fill.

6. Restore power at the breaker panel.

7. Let the heating element run through at least one full cycle, which takes about an hour, before using hot water again.

So in total, you should budget 1.5 – 2 hours for a complete power-down reset of the appliance. Rushing the process by turning breakers or water back on prematurely could damage internal components. Be patient and follow the steps carefully.

Are There Reset Buttons on Water Heaters?

Yes, most electric water heaters have a reset button mounted directly on the appliance. It is typically colored red and located near the thermostat control panel.

The reset button serves as a fast way to reset the internal circuitry and computer controls without having to go flip breakers. When powered on, these internal electronics constantly monitor temperature and electricity flow to ensure safe, consistent heating. If they detect any abnormalities, safety features will trip the entire system offline.

Pressing the reset button essentially reboots the computerized controls and resets any electrical faults, allowing you to bring the heating system back online. It works similar to resetting your computer after a crash, clearing any glitches in the software.

When Should You Use the Reset Button?

While having a convenient reset button is useful, you shouldn‘t rely on it as a fix for chronic hot water problems. Frequent resets indicate there is likely an underlying issue that needs to be properly diagnosed and repaired for long-term reliability.

However, using the reset button occasionally when the heater stops heating is fine. Good instances where the reset comes in handy include:

• Brief power interruption that trips the heater
• Water pressure drops below the minimum PSI
• Water temperature exceeding 135°F trips the high-temp limit switch
• Electrical power surges
• Temporary voltage drops

Resetting the heater after these nuisance disruptions can get the hot water flowing again without waiting for a full cooldown and restart.

What is the Most Common Problem with Electric Water Heaters?

Based on my repair experience, the most prevalent problem I see with electric water heaters is heating element failure.

The elements contain thin metal coils that conduct electricity and generate heat. Over 5-10 years of use, they eventually corrode or crack from constant expansion and contraction as they heat and cool. Low water levels that expose the upper heating element also contribute to premature wear.

Statistics from Rheem, a leading U.S. manufacturer, show their water heaters experience a 4-6% failure rate of heating elements under normal residential use.

When an element fails, you may have no hot water at all, or the tank may slowly lose its ability to fully heat the water. Lower and lower temperatures is a tell-tale sign of a gradually failing element.

Luckily, replacing a bad heating element is an easy DIY repair. I recommend inspecting elements periodically and proactively replacing any that show wear before they fully fail. Taking this preventative step greatly reduces the chances of waking up to cold showers one morning!

How Do I Reset My Electric Water Heater?

You have two options for resetting an electric water heater – using the reset button or cycling the power. Here are the steps for each process:

Using the Reset Button

1. Locate the red reset button, usually near the thermostat control panel.

2. Press and hold the button for 5-10 seconds until you hear a click.

3. Wait 30 minutes to allow the heating cycle to initiate.

4. Test to ensure you have hot water again.

Cycling the Power

1. Shut off power to the water heater at the breaker panel.

2. Drain the tank fully by opening the drain valve.

3. Allow the tank to refill completely with water.

4. Restore power at the breaker panel.

5. Wait 1 hour before testing hot water.

Power cycling gives a more complete reset, but uses the reset button is quicker for temporary outages. However, if hot water issues persist, don‘t just keep resetting. Have a technician inspect for underlying problems.

How Do I Know if My Water Heater Element is Burned Out?

Notice these signs that your electric water heater’s heating element may be burned out:

• No hot water at all

• Hot water takes longer to return

• Decrease in maximum hot water temperature

• Clanging, humming, or popping noises from the tank

• The reset button trips repeatedly

• High heating costs from constantly running element

To confirm a damaged element, you‘ll need to do some testing:

1. Turn off power to the water heater.

2. Drain 1-2 gallons of water from the drain valve.

3. Remove the access cover. Locate the upper and lower heating elements.

4. Disconnect the element wires. Test each element with a multimeter for continuity.

5. No continuity means the element is burned-out and must be replaced.

I recommend replacing your elements proactively every 5-7 years, or anytime low water pressure may have exposed them. Waiting for full failure means annoying cold showers!

Why Does My Hot Water Heater Need to Be Reset?

There are a few common reasons your water heater may need to be reset:

Power Surges – Large spikes in electrical current from storms or faulty wiring can trip the heater‘s overload protection. Resetting clears any resulting errors.

Sediment Buildup – Heavy limescale and minerals at the bottom of the tank can cause overheating faults. Flushing the tank after resetting can help prevent this.

Thermostat Malfunction – If the thermostat sticks, it may need to be reset to start controlling temperature properly again.

Low Water Pressure – Inadequate inlet water pressure can trip the low pressure switch to cut power as a safety precaution.

Overheating – Excess temperature from a faulty element, thermostat, or low water can trigger the high limit switch to shut off power.

Resetting gives the computer controls a fresh start to resume normal heating cycles and temperature regulation. But if the heater keeps tripping, repairs are likely needed.

What Happens When You Reset a Water Heater?

Pressing the reset button or power cycling triggers a system reboot:

• Power is cut to all internal electronics, including temperature controls.

• Any software faults are cleared from the computerized management system.

• The thermostat and heating element reset to their default state.

• When power returns, the thermostat checks tank temperature and resumes appropriate heating.

• Safety valves and circuitry also recalibrate to monitor conditions and prevent overheating.

• It‘s basically like hitting the soft reset on your water heater‘s internal computer.

Think of it as a way to reboot your hot water system and clear any glitches. But frequent resets indicate an issue needing repair.

Why is My Whirlpool Hot Water Heater Not Working?

Whirlpool makes both gas and electric water heater models. Here are some of the most common reasons a Whirlpool unit may stop heating properly:

Gas water heaters:

• Pilot light is out
• Thermocouple needs replacement
• Flue vent or chimney is blocked
• Gas control valve is faulty
• Thermostat needs adjustment or replacement

Electric water heaters:

• No power from tripped breaker or blown fuse
• Sediment blocking heating element
• Heating element is burned-out
• Thermostat is stuck or broken
• Loose wiring connections

For gas models, carefully inspecting the pilot assembly and testing components like the thermocouple can identify issues. On electric units, check power supply, thermostat function, and use a multimeter to test the heating element for continuity.

Review your Whirlpool manual for specific diagnostic tips. Contact their customer support line if you need additional troubleshooting assistance.

Where is the Water Heater Fuse Located?

The fuse or circuit breaker for an electric water heater is located in the main electrical service panel, usually in the garage, utility room, or basement.

Here are some tips for locating it:

• Check the breaker panel index/directory for a circuit labeled water heater, HWH, or an abbreviation like WH.

• The amp rating will likely be 30-50 amps for a 240-volt residential water heater circuit.

• Trace the thick wires from the water heater back to the panel to find the corresponding breaker.

• The circuit could be at the top or bottom. 240V circuits are often at the top while 120V lights and plugs are lower.

Always turn off the main breaker before removing any panel covers and finding circuits. Never replace a water heater fuse with one of a higher amperage. Match the original rating to avoid overloading the circuit.

Can a Blown Fuse Cause No Hot Water?

Absolutely. A blown fuse or tripped breaker supplying power to your electric water heater will leave you without hot water. Here‘s a quick explanation:

• The fuse and circuit breaker are designed to trip and cut power if electricity flow exceeds safe levels.

• This power loss means the internal heating element cannot turn on to heat the water.

• The tank and pipes will gradually lose all remaining hot water as it is used up.

• No new hot water can be produced until power is restored.

According to Rheem, approximately 5-10% of electric water heating service calls are caused by tripped breakers or blown fuses.

If you lose hot water, checking the electrical panel is one of the first troubleshooting steps. Look for the flipped breaker or popped fuse and reset it to restore power. Just make sure the circuit is free of hazards before resetting, as a short or overload caused it to trip for a reason.

What Do You Do When Your Hot Water Heater Won‘t Turn On?

When an electric water heater isn‘t heating, methodically check these potential issues:

1. Verify power supply – Make sure the breaker and wall switch (if equipped) are on. Check for blown fuses.

2. Inspect heating elements – Use a multimeter to check for continuity. Replace if damaged.

3. Test thermostat and sensors – Ensure they are set properly and adjust if needed.

4. Check for loose wiring connections – Tighten any loose electrical connections.

5. Inspect tank and valves – Make sure the pressure relief valve isn‘t leaking and lines are clear.

6. Press reset button – Reset the heater if it has tripped.

7. Consider sediment buildup – Drain and flush the tank if heavy limescale is present.

8. Review error codes – Many heaters have diagnostic error codes that can indicate the problem.

Taking the time to methodically diagnose the issue can get your hot water flowing again. But if problems persist after troubleshooting, consult with a water heating professional.

Why is My Water Heater Warm But Not Hot?

It‘s frustrating when your water heater provides lukewarm water instead of hot. Here are some potential reasons:

• Thermostat Setting – Ensure the temperature dial is set high enough, around 120°F.

• Sediment Buildup – Heavy limescale and minerals can insulate the tank. Flush regularly.

• Underpowered Heater – Older or undersized units may not heat adequately for your home‘s needs.

• Leaky Pipes – Check for leaks allowing hot water to cool before reaching faucets. Insulate pipes.

• Wrong Mixing Valve – Ensure the right ratio of hot and cold with an anti-scald mixing valve.

• Heating Element Issues – Elements can degrade over time. Test and replace if not heating efficiently.

• Vent or Flue Blockage – Gas water heaters need proper ventilation. Remove any obstructions.

Start with the simplest possibilities, like adjusting the thermostat. But significant lukewarm water usually indicates professional service is required. Don‘t just live with a disappointingly warm system!