5 Signs Your Water Heater Is About to Fail

A reliable water heater is essential to daily comfort—so when it starts to fail, the impact is immediate. Recognizing the warning signs early can help you avoid sudden breakdowns and costly disruptions. 

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Here, we’ll cover five common signs your water heater may be on the brink of failure—and the smart steps you can take to fix the issue before it turns into a bigger problem.

Water Heater Warning Signs to Look Out For

1) Lowered Water Temperatures

Sudden spikes or drops in water temperature can signal a faulty thermostat or failing heating element. This often happens as sediment builds up in the tank and interferes with the water heating process.

2) Reduced Pressure

A significant drop in pressure can be linked to sediment or mineral buildup in pipes or the tank itself. Decreased flow can stress the water pump and reduce shower and laundry performance.

3) Poor Water Quality

Brown or red water from the tap could point to corrosion inside the water tank or pipe. A deteriorating anode rod may be failing to prevent rust and metal breakdown, especially in areas with hard water.

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Additionally, a rotten egg smell or metallic taste often points to bacteria growth or degrading anode rods. This can compromise water quality and may result from a lack of proper maintenance or a contaminated water supply.

4) Old Age

Most water heaters have a life expectancy of 8 to 12 years, depending on maintenance and water quality. If yours is nearing or past this range, it's at a higher risk of failure, especially if you're noticing reduced heat or performance.

5) Strange Noises

Banging, popping, or rumbling sounds often stem from sediment hardening at the bottom of the tank. These noises indicate reduced energy efficiency and potential internal damage from trapped mineral deposits.

What to Do If You Notice These Water Heater Warning Signs

Schedule a Professional Inspection

Call a licensed plumber to conduct a thorough inspection of your water heater, valves, and connections. Early diagnosis can prevent a major failure or emergency.

Flush the Tank

Flushing out sediment from the tank can restore water heating efficiency and extend the unit’s lifespan. Regular maintenance also helps reduce noise and mineral buildup.

Upgrade for Better Performance

If your unit is over 10 years old or struggling with performance, upgrading to a newer, more energy-efficient model may be wise. Consider options like a tankless system or a heat pump water heater for better efficiency.

Test the Relief Valve

Make sure the relief valve is functioning correctly to avoid dangerous pressure build-up. This quick check can help prevent leaks or a potential explosion in extreme cases.

Improve Water Quality

Consider installing a filter or water softener if hard water or bacteria are contributing to wear and taste issues. Cleaner water means fewer deposits and less stress on your water heater and pump.

Replace When Necessary

If corrosion, failure, or ongoing problems persist, a full replacement might be the most cost-effective option. Don’t wait for a complete breakdown to take action — plan for a controlled upgrade instead of facing an emergency.

If You've Encountered a Water Heater Emergency, Call 24/7 Plumbing Co. for Professional Help

Anyone in need of water heater repairs in Katy and the surrounding region can count on our team for prompt, professional service. At 24/7 Plumbing Co., we’re committed to supporting both homeowners and businesses with reliable solutions for all their water heater needs. If you notice any signs of trouble, don’t wait—give us a call right away.

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