What trips the reset button on your water heater? Simply put, it’s a safety mechanism designed to protect your unit from issues like overheating or electrical malfunctions. When the water heater experiences an unsafe condition, the reset button automatically trips to prevent further damage or potential hazards.
In this blog, we’ll walk you through the common reasons the reset button might trip and how you can address them, so you can troubleshoot your water heater with confidence.
Reset Button on Water Heater
At the heart of most electric water heaters, you’ll find the reset button. This button is part of the high-limit thermostat system and acts as a safety mechanism. When the water temperature rises beyond the safe limit, the reset button trips, cutting off power to the heating element. This action prevents overheating, which can lead to other issues like leaks, burned-out elements, or even tank ruptures.
Location of the Reset Button
You’ll typically find the reset button on the upper thermostat of the heater. It’s often red and located under a removable panel on the side of your water heater. Some models may have a small cover that you need to unscrew to access it.
Why Does the Reset Button Trip?
There are several reasons why the reset button may trip. See this list of some of the most common causes.
1. Overheating of the Water
The primary function of the reset button is to prevent your water heater from overheating. When the water temperature rises above the safe threshold (typically 120°F to 140°F), the thermostat will trigger the reset button to cut off power. Overheating can occur if your water heater is set too high or if the thermostat is malfunctioning.
2. Faulty Thermostat
Your water heater has two thermostats: one for the upper element and one for the lower element. If one of these thermostats malfunctions, it could cause the water temperature to exceed safe limits, causing the reset button to trip. In this case, replacing the faulty thermostat is essential.
3. Sediment Buildup
Over time, sediment from hard water can accumulate on the bottom of your tank, which reduces the efficiency of the heating element. This buildup can cause the element to overheat, triggering the reset button. Regular water heater maintenance can help prevent sediment buildup.
Here are the 7 signs of sediment buildup.
4. Burnt-out Heating Elements
A burnt-out heating element is one of the most common reasons a water heater’s reset button might trip. When the heating element fails, it can cause the water to overheat, triggering the reset mechanism as a safety measure. Over time, the heating element can wear out due to constant use, mineral build-up, or simply aging. If you notice inconsistent hot water or a lack of hot water altogether, this could be a sign that the heating element needs replacement.
It’s always a good idea to have a professional plumber inspect the element if you suspect this issue.
5. Worn-out Reset Button
In some cases, the issue might not be with the water heater’s internal components but with the reset button itself. Over time, the reset button can wear out and trip unnecessarily. A faulty reset button can create the illusion that there is a problem with the water heater when, in fact, the button is simply malfunctioning.
If your water heater seems to trip the reset button frequently without clear cause, it’s worth considering whether the button itself needs to be replaced.
6. Faulty Circuit Breakers or Wiring
Electrical problems can also cause the reset button to trip. Faulty circuit breakers or wiring issues may prevent the water heater from receiving the proper amount of power, causing it to overheat and trip the reset button. If you’re experiencing frequent trips and you’ve ruled out the heating elements or thermostat, the issue may lie within the electrical system.
This type of issue is often complex and can be dangerous, so it’s advisable to contact a licensed electrician or plumber to inspect the wiring and breakers.
Technical Specifications
Temperature Threshold
The water heater’s reset button typically trips when the water temperature exceeds 180°F. This is done as a protective measure to prevent the water from becoming dangerously hot, which could cause damage to the heater or even lead to injury. When the water temperature goes beyond this threshold, the thermostat sends a signal to the reset button to trip. If this happens frequently, it’s important to check whether the thermostat is set correctly or if it needs recalibration.
If the issue persists, there may be an underlying malfunction that requires professional intervention.
Component Roles
In a typical water heater system, there are several components working together to regulate temperature and ensure safe operation. The upper thermostat is responsible for controlling the temperature of the water in the upper part of the tank, while the lower thermostat controls the temperature in the lower part. The heating elements are what actually heat the water. If the upper thermostat detects that the water has reached the desired temperature, it will turn off the upper heating element, while the lower element continues to heat the water until it reaches the set temperature.
The high-limit thermostat switch is an important safety feature that prevents overheating by cutting power to the heating elements if the water temperature gets too high. If any of these components fail, it could result in the reset button tripping.
How to Reset Your Water Heater | Detailed Troubleshooting Process
Resetting the water heater is usually a simple process, but safety should always come first.
Step-by-Step Guide:
If the reset button on your water heater trips, follow these steps to troubleshoot the issue:
- Turn Off the Power: Always begin by cutting power to the water heater. This is a critical safety step to avoid any electrical accidents.
- Inspect the Reset Button: Press the reset button and see if it resets. If it doesn’t, the problem may be with the button itself, or you might be dealing with an issue like a burnt-out heating element.
- Check the Thermostat Settings: Ensure that the thermostat is set to the correct temperature. It should be around 120°F for optimal performance.
- Examine the Heating Elements: Look for signs of damage to the heating elements. If they appear burnt or corroded, they may need to be replaced.
- Test the Circuit Breaker: Ensure the circuit breaker isn’t faulty. A tripped breaker could indicate an electrical issue that needs attention from a licensed professional.
- Call a Professional: If the reset button continues to trip after performing these checks, it’s time to call a professional plumber to inspect the water heater.
If the reset button keeps tripping after you’ve ruled out thermostat settings and loose wiring, it’s time to call upon the professional water heater services. A licensed technician can run a full diagnostic, replace worn-out components, and restore safe operation.
Safety Precautions
While troubleshooting your water heater, keep these important safety precautions in mind:
- Always switch off the power at the breaker before working on the water heater.
- Avoid touching exposed wiring or components to prevent electrical shock.
- If you’re unsure about any part of the troubleshooting process, it’s best to call in a professional.
What to Do If the Reset Button Keeps Tripping?
If the reset button keeps tripping even after resetting it, this could be a sign of a more serious issue.
- Thermostat Issues: Repeated tripping may indicate that the thermostat is faulty. In this case, it might need to be replaced.
- Malfunctioning Heating Element: The heating element could be faulty or damaged, causing it to overheat. This requires professional assistance, as faulty elements need to be replaced.
- Electrical Problems: Wiring issues or a short circuit can also trigger the reset button to trip. Inspect the wiring for loose connections or signs of wear. This should always be handled by a licensed professional plumber.
For more information on troubleshooting, check our Water Heater Troubleshooting Guide.
Preventive Maintenance Tips
To avoid frequent reset button trips, regular maintenance is key.
Regular Inspections
To keep your water heater running smoothly and avoid issues that might trip the reset button, it’s important to schedule regular inspections. Ideally, you should have a professional plumber inspect your water heater once a year. During the inspection, they will check for any signs of wear and tear, test the thermostat, check the heating elements, and ensure the overall safety of the unit.
Regular inspections can catch potential problems early, preventing costly repairs down the line.
Cleaning Tips
Sediment build-up inside the tank is one of the leading causes of overheating and damage to the heating elements. Over time, minerals from the water accumulate at the bottom of the tank, forcing the heating elements to work harder and potentially causing them to burn out. To prevent this, it’s essential to clean the tank annually by draining the water heater. Simply turn off the power and water supply, drain the tank, and flush it out to remove any sediment.
This simple maintenance task can significantly extend the life of your water heater and improve its efficiency.
Below are the steps you should perform:
- Regularly Check Temperature Settings. Ensure your thermostat is set to a safe temperature of 120°F. This is hot enough for everyday use but prevents overheating.
- Flush the Tank. Flushing the tank every 6 to 12 months can help prevent sediment buildup and ensure efficient operation.
- Inspect for Leaks. Leaks can affect the performance of your water heater, causing the reset button to trip. Periodically inspect the tank for any signs of water leakage.
For further tips on extending the lifespan of your water heater, read our piece on the Water Heater Lifespan in Orlando.
Conclusion
The reset button on your water heater is an essential safety feature designed to protect the unit and your home. While it’s often a simple fix, understanding the causes of a tripped reset button can help you diagnose and address the problem.
Regular maintenance and timely repairs are crucial to keeping your water heater functioning efficiently.
If you encounter ongoing issues with your reset button, don’t hesitate to call a professional plumber for assistance.
FAQs
What does it mean if my water heater reset button keeps tripping?
If the reset button keeps tripping, it could indicate a malfunctioning thermostat, faulty heating element, or electrical issues.
Can I reset my water heater myself?
Yes, resetting your water heater is a simple process. Just be sure to turn off the power before pressing the reset button.
How often should I maintain my water heater?
Regular maintenance, such as flushing the tank and checking the temperature setting, should be done every 6 to 12 months to ensure optimal performance.
Why does my water heater reset button keep tripping?
A frequently tripping reset button often signals an underlying issue. Common causes include:
– Faulty Thermostats: If the thermostat fails to regulate the water temperature properly, it can cause overheating, triggering the reset button.
– Sediment Buildup: Mineral deposits can accumulate at the bottom of the tank, leading to overheating of the heating elements.
– Electrical Issues: Loose or damaged wiring can generate excess heat, causing the reset button to trip.
If the reset button continues to trip after pressing it, it’s advisable to consult a professional plumber to diagnose and resolve the issue.
Can I reset my gas water heater myself?
Yes, you can reset a gas water heater yourself. However, the process differs from electric models:
1. Turn Off the Gas Supply: Ensure the gas supply to the water heater is turned off.
2. Relight the Pilot Light: Follow the manufacturer’s instructions to relight the pilot light.
2. Adjust the Thermostat: Set the thermostat to your desired temperature.
If you’re unsure about the process or encounter issues, it’s recommended to contact a professional plumber.
What should I do if the reset button doesn’t click when pressed?
If the reset button doesn’t click, it may indicate a malfunctioning thermostat or a faulty reset button itself. In such cases:
– Check the Thermostat: Inspect the thermostat for any visible signs of damage or malfunction.
– Inspect the Reset Button: Ensure the reset button is not stuck or damaged.
If the issue persists, it’s advisable to consult a professional plumber to inspect and repair the water heater.
How often should I flush my water heater to prevent sediment buildup?
Flushing your water heater annually is recommended to prevent sediment buildup, which can lead to overheating and other issues. Regular flushing helps maintain the efficiency and longevity of your water heater.
If you’re unsure how to flush your water heater or need assistance, it’s best to contact a professional plumber.
