AO Smith Water Heater Element Replacement: A Step-by-Step Guide
Replacing an AO Smith water heater element might seem daunting, but with the right preparation and knowledge, it’s a manageable DIY project that can save you money. Understanding the process thoroughly is crucial before you even think about touching any tools. Many homeowners find themselves facing this task sooner or later, as elements are a common wear item. This guide will walk you through each step, ensuring a safe and efficient AO Smith water heater element replacement experience.
Understanding Your Water Heater Element
What is a Water Heater Element?
A water heater element is the component responsible for heating the water inside your tank. It’s essentially a resistor that converts electrical energy into heat. Over time, these elements can burn out due to mineral buildup, electrical issues, or simply old age.
Identifying a Faulty Element
Common signs of a failing element include:
- Lukewarm or cold water
- Water takes too long to heat
- No hot water at all
- Popping or sizzling noises from the tank
- Circuit breaker tripping
Step-by-Step Guide to AO Smith Water Heater Element Replacement
Before you start, safety is paramount. Always disconnect the power to the water heater at the circuit breaker. Then, follow these steps:
- Turn off the Power: Locate the circuit breaker dedicated to your water heater and switch it to the “off” position. Double-check with a non-contact voltage tester to ensure there’s no power.
- Turn off the Water Supply: Close the cold water inlet valve to stop water from entering the tank.
- Drain the Tank: Attach a hose to the drain valve at the bottom of the tank and run the hose to a drain or outside. Open the drain valve to allow the tank to empty. Be patient; this can take a while. Only drain the tank far enough that the element is no longer submerged.
- Access the Element: Remove the access panel(s) on the side of the water heater. You may need to unscrew a few screws. Be careful, as the access panel edges can be sharp.
- Disconnect the Wiring: Carefully disconnect the wires attached to the element. Note their positions for reassembly.
- Remove the Old Element: Use an element wrench (specifically designed for this purpose) to unscrew the old element. It might be tight, so apply steady pressure.
- Install the New Element: Wrap the threads of the new AO Smith water heater element with Teflon tape. Screw the new element into the tank, tightening it securely with the element wrench.
- Reconnect the Wiring: Reattach the wires to the element terminals, ensuring they are securely connected.
- Replace the Access Panel(s): Reattach the access panels to the water heater.
- Turn the Water Supply Back On: Open the cold water inlet valve to refill the tank. Leave a hot water faucet open to allow air to escape.
- Turn the Power Back On: Once the tank is full and water is flowing from the faucet, switch the circuit breaker back to the “on” position.
- Test the Water Heater: Wait a few hours and check if the water is heating properly.
Choosing the Right Replacement Element
Selecting the correct replacement element is crucial for optimal performance and safety. Consider these factors:
- Voltage and Wattage: Match the voltage and wattage of the old element. This information is usually printed on the element itself or in the water heater’s manual.
- Thread Size: Ensure the thread size matches the tank opening.
- Material: Elements come in different materials, such as copper and stainless steel. Stainless steel elements are generally more durable and resistant to corrosion.
Troubleshooting Common Issues
Element Won’t Budge
If the old element is stuck, try applying penetrating oil around the threads and letting it sit for a few hours. You can also try using a longer wrench for more leverage.
Leaking After Installation
If you notice a leak after installing the new element, tighten it further with the element wrench. If the leak persists, check the Teflon tape and ensure it’s properly applied. You may need to remove the element and reapply the tape.
Successfully performing an AO Smith water heater element replacement requires patience and attention to detail. By following these instructions carefully, you can restore hot water to your home and save money on professional repair costs.
Remember that if you’re uncomfortable working with electricity or water, it’s always best to consult a qualified plumber or electrician. These professionals have the experience and expertise to handle the job safely and efficiently.
Preventive Maintenance to Extend Element Life
Taking proactive steps can significantly extend the life of your water heater elements and prevent premature failure. Here are some helpful tips:
- Flush the Tank Regularly: Sediment buildup is a major cause of element failure. Flushing the tank every 6-12 months helps remove sediment and prevents it from accumulating on the elements.
- Install a Water Softener: Hard water contains high levels of minerals that can cause scale buildup on the elements. A water softener can reduce mineral content and prolong element life.
- Check the Anode Rod: The anode rod is a sacrificial rod designed to corrode instead of the tank. Regularly check the anode rod and replace it when it’s significantly corroded. A healthy anode rod protects the elements from corrosion.
- Lower the Thermostat Temperature: Setting the thermostat too high can accelerate element wear and tear. A setting of 120°F (49°C) is generally sufficient for most households and can help extend element life.
When to Call a Professional
While many homeowners can successfully replace a water heater element, there are situations where it’s best to call a professional:
- You’re Uncomfortable Working with Electricity or Water: Safety should always be your top priority. If you’re not comfortable working with electricity or water, it’s best to leave the job to a qualified professional.
- You’re Unsure of the Problem: If you’re not sure whether the element is the problem or if there might be other issues with your water heater, a professional can diagnose the problem accurately.
- You’re Dealing with a Complex Issue: If you encounter a complex issue, such as a leaky tank or faulty wiring, it’s best to call a professional who has the expertise to handle the situation.
- Your Water Heater is Under Warranty: Replacing the element yourself may void the warranty on your water heater. Check the terms of your warranty before attempting any repairs.
Final Thoughts on AO Smith Water Heater Element Replacement
Armed with the knowledge from this guide, you should feel more confident in your ability to tackle an AO Smith water heater element replacement. Remember to prioritize safety, follow the steps carefully, and don’t hesitate to seek professional help when needed. By taking good care of your water heater, you can ensure a reliable supply of hot water for years to come.
