11 COMMON WATER HEATER PROBLEMS AND REPAIRS

September 09, 2024

You’re up and ready for a great day at the office, a fun day with the kids at a nearby park, eighteen holes of golf, or maybe you’re feeling a bit more ambitious and ready to make a dent in your “honey do” list. Whatever life has in store for you today, no doubt a nice hot shower will precede it. Unless, of course, your water refuses to cooperate.

Water heaters fail for many reasons and always, it seems, at the worst possible time. Find out the 11 most common water heater problems, tips for troubleshooting, and preventive measures to keep your system running smoothly. 

If you're facing persistent issues in the Memphis, Texas area, call Conway Services at 901-248-1961 or request an appointment to restore your hot water supply.

TABLE OF CONTENTS

• How to Fix Common Water Heater Problems
• Preventive Tips for Water Heater Maintenance
• Signs Your Water Heater May Need Replacement
• When to Call a Professional
• Conway Services: Expert Water Heater Repair

HOW TO FIX COMMON WATER HEATER PROBLEMS

Water heaters can experience a range of problems that affect their efficiency and reliability. From no hot water to unusual odors, each issue has a specific cause and solution. Below, we explore the most common water heater problems and offer practical advice to get your water heater back in working order. 

1. NO HOT WATER

There’s nothing worse than expecting a nice hot shower and being greeted by icy cold water. If your water heater isn’t producing hot water, it could be due to one of several issues. While some of these problems are easy fixes, others might require professional attention. Let's dive into the most common causes and solutions.

• Extinguished Pilot Light: If the pilot light goes out, it could be due to drafts or malfunctioning components. To fix this, relight the pilot light according to the manufacturer’s instructions.

• Malfunctioning Thermocouple: The thermocouple detects whether the pilot light is lit. If it’s faulty, it may cut off the gas supply. Replacing a damaged thermocouple should resolve this issue.

• Faulty Heating Element: For electric water heaters, heating elements can wear out over time. Test the heating element with a multimeter and replace it if it’s defective.

• Tripped Circuit Breaker: Electric water heaters may have a tripped circuit breaker, which cuts off power. Reset the breaker and ensure the unit is receiving power.

If fixing these common water heater issues on your own seems intimidating, consider contacting the experts at Conway Services at 901-248-1961. We service customers in and around the Memphis, Texas area.

2. LOW WATER PRESSURE

Low water pressure can make daily tasks like showering and washing dishes feel like a chore. Whether you’re dealing with a weak stream from your showerhead or an entire house experiencing low pressure, understanding the root causes is essential for fixing it. Here’s what could be causing that frustrating trickle.

• Sediment Buildup: Sediment can clog the pipes and water heater tank, restricting water flow. Flushing the water heater annually can help remove sediment and improve water pressure.

• Faulty Pressure Regulator: The pressure regulator controls water pressure but can malfunction over time. If it's faulty, replacing it should restore proper pressure.

• Narrow Pipes: In older homes, galvanized pipes may corrode and cause reduced water flow. Replacing these pipes with newer materials like copper or PEX will help improve water flow.

3. DISCOLORED WATER

If your water looks rusty, brown, or cloudy, you have a bigger issue. Discolored water can be alarming, but the cause is often a result of rust, sediment, or corrosion somewhere in your plumbing or water heater. Here’s what could be behind the discoloration.

• Rust or Sediment Accumulation: Over time, rust or sediment can accumulate inside the tank, discoloring the water. Draining and flushing the tank can remove these impurities.

• Corroded Anode Rod: The anode rod helps prevent rust inside the tank but can wear out over time. If it’s heavily corroded, check it and replace it to prevent further issues.

• Pipe Corrosion: Rusty or corroded pipes can also cause discolored water. Inspect the plumbing for signs of corrosion and replace damaged pipes as necessary.

Let us help you repair this common water heater problem. Call us today at 901-248-1961.

4. NOISY WATER HEATER

Have you ever been jolted awake by your water heater making strange, unsettling noises? Popping, rumbling, or clicking sounds can be signs that something’s not quite right. While some sounds are harmless, others can signal a deeper issue that needs attention. Let’s take a closer look.

• Sediment Buildup: Sediment at the bottom of the tank can create popping or rumbling noises as the water heats. Flushing the tank will eliminate sediment and reduce these noises.

• Loose Components: Over time, the vibrations from the water heater’s operation can loosen components. Tightening any loose fittings or having a professional inspect the unit can help.

• Expansion and Contraction: Metal components expand and contract as the water heater heats and cools, causing clicking or ticking sounds. Insulating pipes can minimize these noises.

5. WATER IS TOO HOT

Too-hot water is not only uncomfortable, but it can also lead to potential safety hazards and higher energy bills. If your water heater is producing far too hot water, the issue likely lies with the thermostat or the setting itself. Here's what to check if you find yourself in this predicament.

• Thermostat Set Too High: A thermostat setting above 120°F can cause scalding hot water. Adjust the thermostat to a safer and more energy-efficient temperature of 120°F.

• Malfunctioning Thermostat: A faulty thermostat may fail to regulate the water temperature correctly. If the issue persists, replace the thermostat to ensure proper temperature control.

6. TEMPERATURE FLUCTUATIONS

If you’re finding that your showers go from piping hot to icy cold without warning, this problem could be a sign of a deeper issue with your water heater’s components. Let’s explore what could be causing these inconsistent temperatures and how to solve them.

• Faulty Thermostat or Heating Element: Both the thermostat and heating element regulate the temperature, and if either is faulty, it can lead to temperature fluctuations. Test and replace any faulty parts.

• Sediment Interference: Sediment buildup inside the tank can prevent heat from being distributed evenly. Flushing the tank should restore proper heat distribution.

• Improperly Sized Water Heater: A water heater that’s too small for your household’s needs will struggle to meet demand, causing temperature fluctuations. Upgrading to a larger unit may be necessary.

We can replace your thermostat or heating element. Request an appointment and we help get your water heater in tiptop shape. 

7. ROTTEN EGG SMELL

If you’ve noticed a pungent, rotten egg smell coming from your taps, don’t ignore it. This foul odor is often caused by bacteria in your water heater, and while it’s not necessarily dangerous, it’s not pleasant. Let’s look at why this happens and how to eliminate it.

• Bacteria Reacting with the Anode Rod: Bacteria can react with the anode rod and produce hydrogen sulfide gas, which creates a rotten egg odor. Flushing the tank and disinfecting it with a hydrogen peroxide solution will eliminate the smell.

• Standing Water: If the water heater isn’t used regularly, water can become stagnant, promoting bacterial growth. Using the water heater more often will prevent this issue.

8. VISIBLE LEAKS

Leaks from a water heater are not something to take lightly. Whether the leak is small or large, it can result in significant water damage if left unchecked. It’s essential to identify the source of the leak and take immediate action. Here’s what you should look out for.

• Loose Connections: Fittings and valves may become loose over time, causing leaks. Tightening these connections should stop the leak.

• Damaged Tank: Corrosion or wear can cause leaks in the tank itself. If the tank is leaking, it may need to be replaced.

• Faulty Pressure Relief Valve: A malfunctioning valve can release excess water and cause leaks. Replacing the pressure relief valve will stop the leak.

9. INCREASED ENERGY BILLS

If your energy bills are spiking unexpectedly, your water heater could be working harder than it needs to. Inefficient heating elements, poor insulation, or incorrect thermostat settings may be to blame. Let's take a closer look at how to address these issues and save on energy costs.

• Inefficient Heating Elements: As heating elements age, they can become less efficient and consume more energy. Replacing old heating elements with new ones can help reduce energy consumption.

• Insufficient Insulation: Heat loss can increase energy usage. Adding insulation to the tank and pipes will improve efficiency and reduce energy bills.

• Incorrect Thermostat Settings: The water heater will waste energy if the thermostat is set too high. Set the thermostat to 120°F to improve energy efficiency.

Need help identifying the problem? Request an appointment and we will take care of you!

10. CROSSED HOT AND COLD CONNECTIONS

Crossed hot and cold water lines can cause a whole range of issues, from inconsistent water temperatures to water pressure problems. Incorrect plumbing could be the root of the issue, and it's critical to correct it to restore proper function. Here’s what to look for.

• Incorrect Plumbing: Crossed water lines can cause hot water to mix with cold water, leading to reduced temperature and pressure. Inspect the plumbing and correct any incorrect connections.

11. TANKLESS WATER HEATER ISSUES

Tankless water heaters offer on-demand hot water, but they come with their own set of challenges. If your system isn’t performing properly, it could be due to mineral buildup, an insufficient flow rate, or faulty sensors. Let’s explore how to troubleshoot these common issues.

• Mineral Buildup: Hard water can cause mineral deposits to build up inside the unit, reducing efficiency. Regularly descaling the system will help prevent clogs.

• Insufficient Flow Rate: If the flow rate is too low, the tankless heater may struggle to meet demand. Ensure the unit is sized properly for your household’s hot water needs.

• Faulty Sensors: Faulty sensors can give incorrect readings, impacting the performance of the tankless water heater. Replacing damaged sensors will restore accurate readings and improve performance.

If fixing the issue yourself sounds overwhelming or just don't have the time, call us at 901-248-1961 and we'll take care of it for you.

PREVENTIVE TIPS FOR WATER HEATER MAINTENANCE

Regular maintenance is the key to extending the life of your water heater and ensuring it runs efficiently. Simple steps can make a big difference in preventing costly common water heater repairs or water heater replacements. Here are some tips to keep your system in top condition:

• Drain and Flush Annually: To drain and flush your water heater, turn off the power or gas supply and attach a hose to the drain valve at the bottom of the tank. Direct the hose to a safe drainage area, then open the valve to let water and sediment flow out. Once empty, close the valve and refill the tank, turning the power or gas back on once it’s full.

• Inspect the Anode Rod: Check the anode rod every 3-5 years by unscrewing it from the top of the tank. If it’s heavily corroded or reduced to less than half an inch in diameter, replace it with a new one to prevent rust in your tank.

• Set the Temperature to 120°F: Adjust the thermostat to 120°F using the dial located on the tank. This not only reduces energy consumption but also minimizes the risk of scalding.

• Test the T&P Valve: The temperature and pressure relief (T&P) valve is a critical safety feature. Lift the valve’s lever to let some water discharge and test it. If water doesn’t flow or the valve leaks after the test, it needs replacement.

• Insulate Pipes and Tank: Use pre-cut pipe insulation sleeves and a water heater blanket to wrap exposed hot water pipes and the tank. This helps retain heat and improves energy efficiency.

• Schedule Annual Inspections: Hire a professional plumber to inspect your water heater annually or give it a tune up. They can detect early signs of trouble and ensure all components are functioning correctly. If you live in Memphis, TX or any surrounding areas, call 901-248-1961—we’d love to inspect your water heater and help where needed.

SIGNS YOUR WATER HEATER MAY NEED A REPLACEMENT

Water heaters may become less efficient or prone to breakdowns as they age. Recognizing the signs of a failing unit can help you avoid unexpected interruptions to your hot water supply. So how do you know if your water heater is going bad? Here’s what to watch for:

• Age of the Unit: The normal life expectancy of most water heaters is about 8-12 years. If yours is older, consider replacing it.

• Frequent Repairs: If repairs are becoming more frequent and costly, replacing your water heater may be more economical.

• Inefficiency: Rising energy bills can indicate that your unit is no longer operating efficiently.

• Inconsistent Hot Water: Persistent temperature fluctuations may signal an aging system.

• Visible Corrosion or Leaks: Corrosion on the tank or visible leaks often indicate irreparable damage.

If it's time to replace your water heater, Conway Services is here to help you select and install the ideal unit for your home. We also offer convenient financing options, including a same-as-cash plan with no interest for 12 months, so you can get the support you need right away.

Plus, you can take advantage of end-of-year tax credits from the Inflation Reduction Act (IRA), which currently allows for a credit of up to 30% of the project cost, with a maximum of $3,200 per year.

WHEN TO CALL A PROFESSIONAL 

While some common water heater issues can be resolved with DIY methods, others require professional expertise to ensure safety and efficiency. If you’re dealing with persistent issues or suspect a serious problem, don’t hesitate to seek expert help. Proper repairs can save you time, money, and further damage to your system.

CONWAY SERVICES: EXPERT WATER HEATER REPAIR

Whatever the problem turns out to be, you have a friend in the business who can fix it for you: Conway Services, providing service in and around Memphis since 1990. We have the skills and experience to restore your hot water supply, regardless of your water heater’s make or model. 

With Conway Services, you’ll also enjoy peace of mind thanks to our Exceptional Service Guarantee. If, for any reason, within one year of the original invoice, you are dissatisfied with our work in your home, we’ll make every effort to meet your expectations—or remove your equipment (if applicable) and cheerfully refund 100% of your money.*

If you’re dealing with persistent problems or suspect a serious issue, call us today at 901-248-1961 or request an appointment and we will take care of you.