Tankless Water Heater Repair in Wausau & Central Wisconsin

Tankless water heaters are becoming an increasingly popular choice for Wisconsin homes, but even the best tankless unit can still run into issues that require repair. If you are dealing with hot water issues from your tankless unit, call Frasier’s Plumbing, Heating, Cooling & Electrical for top-rated tankless water heater repairs in Wausau and the surrounding areas of Northern Wisconsin. we provide dependable tankless water heater repair services throughout Northern Wisconsin. Our team is equipped to quickly identify what’s causing the problem and implement effective repairs that get your hot water back on track. We focus on delivering reliable solutions that help keep your system running efficiently and your home comfortable.

Contact Frasier’s today to schedule tankless water heater repairs in Wausau, Rhinelander, or the surrounding areas of Wisconsin.

Man fixing a tankless water heater

Why Choose Frasier’s for Plumbing Repairs?

Since 1918, Frasier’s Plumbing, Heating, Cooling & Electrical has tirelessly served homeowners throughout Northern Wisconsin with top-rated plumbing services. When you choose us for tankless water heater repairs, you’ll benefit from:

  • Over 100 years of experience
  • 100% satisfaction guarantee
  • Honest pricing on every job
  • Highly trained, skilled, and friendly plumbers
  • Five-star service experience

When To Schedule Tankless Water Heater Repairs

Hot water is an essential part of your daily routine, so issues with your tankless water heater can be quite disruptive. It’s important to act quickly when something is wrong with your unit so that you can prevent a complete loss of hot water. Also, small issues can worsen significantly if left unaddressed, making prompt repairs essential to avoid an early system replacement.

To make sure you know when to schedule tankless water heater repairs in the Wausau area, keep an eye out for the following signs that something is wrong:

  • Inconsistent water temperature: Fluctuating water temperatures are often caused by mineral buildup in the heat exchanger, a clogged filter, or a system that is struggling to keep up with demand.
  • No hot water at all: If you are only getting cold water out of your taps, the issue could be due to ignition failure, gas supply problems, electrical issues, or a malfunctioning internal component.
  • Reduced water pressure: This is commonly the result of scale buildup, clogged inlet filters, or partially closed valves that restrict water flow.
  • Unusual noises from the unit: Strange sounds are often caused by mineral deposits inside the system or components that are wearing out over time.
  • Error codes on the display: These are triggered by specific internal issues such as overheating, sensor malfunctions, or venting problems.
  • Frequent system shutdowns: When your unit keeps shutting off, it could be due to overheating, blocked vents, low gas pressure, or safety mechanisms detecting a fault.
  • Water takes longer to heat: This can be caused by scale buildup, reduced efficiency, or failing heating elements or burners.
  • Visible leaks or moisture: Leaks are typically due to loose connections, worn seals, corrosion, or internal component failure.
  • Higher energy bills: When your water heater becomes inefficient, it can due to mineral buildup or other causes, it can drive up your energy bills.

If you have noticed any of these problems or have other concerns, call our team for fast and effective tankless water heater repairs. Our experts have seen and repaired it all, so we can get to the root of the issue to restore hot water to your home in no time.

Schedule Your Service Today!

Our Tankless Water Heater Repair Services

At Frasier’s, we understand how frustrating hot water problems can be, so our experts have you covered with professional tankless water heater repair services in Wausau and the surrounding areas. Our water heater repair services are designed to restore reliable hot water to your home as quickly as possible. When your system isn’t performing the way it should, our licensed plumbers are ready with the tools and experience needed to diagnose the issue accurately and deliver a lasting solution.

Tankless systems are complex and require specialized knowledge to service correctly. Our team is trained to work on a wide variety of makes and models, allowing us to identify problems such as ignition failures, mineral buildup, sensor issues, flow restrictions, and system error codes. No matter the size or complexity of the issue, we will work efficiently to restore consistent hot water to your home.

If we determine that your unit is beyond repair, we can also offer recommendations for a tankless water heater replacement. We value transparency, so we will be sure to explain your options clearly and answer any questions you may have before getting started on the repair or replacement.

Schedule Tankless Water Heater Repairs Today

When your tankless water heater needs repair, Frasier’s Plumbing, Heating, Cooling & Electrical is the team to call. We provide top-quality plumbing repair services throughout Wausau, Rhinelander, and the surrounding areas, and we are ready to get your water heater working again.

Schedule tankless water heater repairs with the Frasier’s team in Wausau or the surrounding areas.

FAQs About Tankless Water Heater Repairs

There are a few tankless water heater troubleshooting steps you can try before calling for professional repairs. Check if your circuit breaker has tripped, adjust the water temperature if needed, and try resetting the unit. If this doesn’t work, it’s time to call a professional instead of attempting DIY repairs. Tankless water heaters are complex, and attempting repairs without the proper tools and knowledge can worsen the issue. Our team at Frasier’s can safely and effectively repair your tankless water heater.

Some of the more modern models of tankless water heaters come equipped with error codes to help indicate what’s wrong with your unit. If you see an error code, consult your manufacturer’s instructions to determine what the error code means. If you cannot determine the issue, our team can inspect the unit and figure out what is wrong.

If your hot water runs out quickly after turning it on, there could be a few issues at play. Something could be wrong with your tankless water heater that requires repair, or your unit may not be sized properly for your home. Call our team and we can determine if you need a repair or a tankless water heater with a larger capacity.

If your tankless water heater is leaking, turn off the power or gas supply and shut off the water to the unit to prevent further damage. Check for obvious issues like loose connections and clean up any standing water around the system. Even small leaks should be handled by a professional, as they can indicate internal problems that require proper repair.

Tankless water heaters typically last around 15 to 20 years, so a replacement may be more worth it if your unit is approaching this age. Newer models will typically be fine with a repair rather than a replacement. The correct answer will come down to your specific situation, as the age, efficiency, and type of repair all play a role in which choice makes more financial sense. We’ll evaluate your water heater thoroughly to present your best options and help walk you through the decision process.

What To Expect

From Frasier's Plumbing, Heating & Cooling

honest pricing on every job

You can expect fair and straightforward pricing on every job!

No job is too big or too small

Whether you’re looking for a fixture repair or complete HVAC replacement, we’re here for you!

we care about You

We are committed to providing exceptional customer service and reliable solutions.

we strive to be the best

Our technicians are highly trained and experienced in delivering lasting results.

emergency service available*

We’re here for all your repairs, even those that cannot wait another day!

family owned and operated

For more than 100 years, we’ve proudly served our neighbors throughout the area!

honest pricing on every job

You can expect fair and straightforward pricing on every job!

No job is too big or too small

Whether you’re looking for a fixture repair or complete HVAC replacement, we’re here for you!

we care about You

We are committed to providing exceptional customer service and reliable solutions.

we strive to be the best

Our technicians are highly trained and experienced in delivering lasting results.

emergency service available*

We’re here for all your repairs, even those that cannot wait another day!

family owned and operated

For more than 100 years, we’ve proudly served our neighbors throughout the area!

What Your Neighbors Are Saying

Every technician and staff member from Frasier’s we have had contact with has been absolutely excellent. We could not ask for better service, expertise, honesty or kindness. Simply put, we trust them and everything else is a bonus.

Katie A.
Katie A.

Since we started using Frasier’s, we have been more than satisfied. Between the outstanding communication with the office to the superior customer and technical skills of the technician, make this company top notch.

Ralph C.
Ralph C.

Sully was on time and very well educated. He had great personal interaction skills. He answered all of my questions thoroughly. This was a great repair experience. This was my first experience with Frasier's and they are my new go-to for all things heating and plumbing. And their fees were very competitive for the area!

Barb C.
Barb C.

They had to replace the old cast iron drain waste vent system in this old house. It was no small job and Adam and team were superb. Adam kept me informed all along the way and talked over options when the unexpected arose. I couldn't be happier with the service that Adam and team provided. Highly…

George K.
George K.

These guys were awesome. Installed a new central a/c system in our home in record time. We expected to have to wait months, but it was quoted, ordered and installed within a week. We are super happy. They were really nice people. We will definitely be using them for other projects.

Anita L.
Anita L.