Plumbing & AC Medic is now Rite Way Heating, Cooling & Plumbing of Phoenix. New name, same great team and service.

Tankless Water Heater Repair

Tankless Water Heater Repair Services in Phoenix, AZ

Having a tankless water heater in your Phoenix home gives you amazing perks — endless hot water, lower utility bills, and a smaller carbon footprint. But like any hard-working appliance, tankless systems need a bit of TLC as time goes on. When repair needs pop up, you want someone who knows these systems inside and out.

Rite Way of Phoenix can fix tankless water heater issues fast. Our team spots the hidden problems that can leave you scratching your head and get your system running smoothly again. From mineral buildup to heat exchanger troubles, we handle it all with upfront pricing and clear solutions.

Call today for tankless water heater repair in Phoenix, AZ. Our company provides the finest plumbing services and is proud to bring that to you when your tankless water heater breaks. Call today to learn more!

Common Tankless Water Heater Problems and Solutions

The good news about tankless water heater issues is that most of them have straightforward fixes. In Phoenix’s hard water environment, mineral buildup tops the list of common problems. Regular maintenance can prevent this, but if it’s already happening, we can flush the system and get it working like new. We can also install water purification systems to manage hard water problems.

Heat exchanger issues are another biggie. This crucial part works overtime in Phoenix’s climate. When it starts acting up, you might notice less hot water or higher utility bills. We can check it out and either clean, repair, or replace it if needed.

There are a ton of other problems that you may end up dealing with. We’ll explain some more below:

Below Are Common Tankless Water Heater Problems:

  • Sediment buildup in your water heater
  • Ignition failure
  • Flame failure
  • Blocked air supply
  • Too many fixtures being used at one time
  • Loose or damaged electrical connections
  • Gas line damage
  • Exhaust blockage

Not sure what’s causing your tankless water heater problems? Call our Phoenix tankless water heater repair technicians at Rite Way of Phoenix today to learn more.

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Signs Your Tankless Water Heater Needs Repairs

Your tankless water heater works hard to keep the hot water flowing. But sometimes, it tries to tell you something’s not quite right. Let’s look at the most common warning signs that mean it’s time to give us a call.

No Hot Water

When your tankless system stops heating water completely, it’s usually due to a few common culprits. The heating elements might be worn out, or there could be an issue with the flow sensor. Sometimes, it’s as simple as a circuit breaker that’s tripped.

Fluctuating Water Temperature

If you’re getting random cold water bursts during your shower, your system might have scaling buildup or issues with its flow sensor. This is pretty common in Phoenix because of our hard water.

Strange Noises

Popping, clicking, or whining sounds often mean there’s mineral buildup inside your unit. This is totally fixable with proper maintenance, but you’ll want to address it before it causes bigger issues.

Error Codes Showing Up

Modern tankless units have built-in diagnostic systems. When you see those error codes lighting up, it’s your heater asking for help. Each code points to a specific problem that needs attention.

Repair vs. Replacement:How Do I Know When It's Time for Repairs vs. Time for Replacements

This is a question we hear a lot from Phoenix residents. We can provide a brand-new tankless water heater if you need it, but we strive to make the most of your water heater — without putting your wallet in danger, of course. Generally, if your tankless water heater is less than 10 years old and the repair costs are under half the price of a new unit, repairs make sense. Plus, most issues we see in newer units are totally fixable.

But if you’re dealing with frequent breakdowns, sky-high utility bills, or a unit that’s pushing 15–20 years old, a new tankless water heater installation might be your better bet. New models are highly efficient and can save you money on operating costs in the long run.

What to Do if Your Tankless Water Heater Isn't Working

First, don’t panic! Try these quick checks: 

  • Make sure your gas is on (if you have a gas unit)
  • Check your circuit breaker
  • Look for any error codes on the display

Write down or take note of what you’re seeing, as this helps us diagnose the problem faster. If those basic checks don’t solve it, it’s time to call in the pros. 

Trying DIY fixes on tankless systems can actually make things worse and might void your warranty. We provide expert tankless water heater services, and we use the word “expert” for a reason. Rite Way of Phoenix will figure out what’s wrong and fix it right.

Schedule Your Tankless Hot Water Heater Repair Today!

Our team of experienced tankless water heater repair contractors is dedicated to providing top-notch service. We pride ourselves on our reliability, timeliness, and commitment to customer satisfaction so you can enjoy lower operating costs and monthly utility bills and cleaner, healthier hot water.

We understand that water heater issues can occur at the most inconvenient times. That’s why we offer emergency plumbing services and tankless water heater replacements to ensure your comfort is restored as soon as possible. Don’t wait for a small problem to turn into a costly repair or replacement. Schedule your tankless water heater repair in Phoenix, AZ, with us today!