Oahu · 24/7

Tankless Water Heater Repair In Maui, HI

Expert Tankless Water Heater Repair in Maui, HI

When your tankless water heater stops working, you need a team that knows how to fix it fast. At Steve’s Plumbing and A/C – Maui, we provide expert diagnosis and repair for all makes and models of tankless units. We understand the demands of Maui homes and respond quickly to get your system back up and running.

Why Maui Residents Trust Steve’s

  • Service for all major brands
  • Fast and accurate repairs by licensed professionals
  • Experience with mineral buildup and local water conditions
  • Friendly service with upfront pricing
  • Guaranteed workmanship

Why Choose Steve's?

Four decades of trust. One simple promise.

We’ve been part of Hawaiʻi homes since 1986. Locally operated, community-rooted, and backed by the kind of guarantee most companies won’t put in writing.

Polu-Polo

24/7 Service

5-Star Service

We Do It Right

Community Focused

Locally Operated

Specials

Financing Options Available

Need a new system? Don’t let cost hold you back. We offer flexible financing with approved credit so you can stay comfortable now and pay on your terms.

Get the Reliable, Island-Trusted Service You Deserve

From emergency repairs to full system installs, Steve’s keeps your home comfortable, efficient, and worry-free.

We Partner with the Best

Top-Quality Plumbing Services Near Maui, HI

We offer a full line of installation, maintenance and repair that your home’s plumbing may require, no matter the problem or time of year. You can count on the trusted professionals at Steve’s Plumbing and A/C Service – Maui for exceptional service and quality craftsmanship.

Don’t Let a Broken System Disrupt Your Day

Tankless water heaters are convenient, but even a small issue can mean cold water or system shutdowns. We’re trained to handle all types of repairs, so you don’t have to go without hot water longer than necessary.

We Handle Repairs For:

  • Ignition and sensor issues
  • Water pressure fluctuations
  • Scale buildup from hard water
  • Unresponsive or error-prone systems
  • Inconsistent or no hot water

Zero Hot Water

Perhaps the most obvious and concerning sign and symptom of a broken tankless water heater is having no hot water in your Maui, HI house. Any time you simply cannot get any hot water out of your faucets, showers, or other hot-water using appliances, unfortunately, your inclinations are probably correct. Have a certified plumber inspect your tankless water heater, diagnose the issue, provide a solution, and repair your water heater.

Multiple Appliance Issues

Oftentimes, when a tankless water heater is experiencing issues that require professional repair, it will then affect other water-using appliances around your Maui, HI home. If you’ve noticed issues with hot water in regards to your washing machine or dishwasher, it’s time to schedule an expert tankless water heater repair.

Power Issues

Is your tankless water heater shutting itself off? This is a problem. Power issues with your tankless water heater are usually an indication of a clogged filter. Tankless water heaters create extremely hot exhaust, and if your unit is not properly ventilated for whatever reason, it will cause your system to break down and shut down. In the event of power issues within your tankless water heater, address the problem right away to avoid potential fire hazards with your water heater.

Discolored and Foul-Tasting Water

Any time that your water supply is discolored and tinted with a brown, red, yellow, black hue and/or has a foul, metallic-tasting smell to it, something is wrong. Since tankless water heater units do not have a reservoir bank for sediment to form in, you shouldn’t have discolored or foul tasting water, so in the event that you do, have one of our plumbing experts examine your water heater and water supply to pinpoint the issue and provide repair solutions. It should be noted that water discoloration and foul-tasting water can be caused by many other things in your Maui, HI home, but if you notice it in conjunction with any of our other listed signs of a tankless water heater in need of repair, it’s likely due to your water heater.

Odd Noises

Your tankless water heater system will likely make very faint noises in its normal operation, but if you notice any odd, loud noises such as banging, humming, screeching, or knocking, there is something wrong with your water heater. Make sure to schedule an expert tankless water heater repair as soon as you possibly can if you hear any loud and unfamiliar noises coming from your tankless water heater.

Leaking Water

Tankless water heaters should never leak water, so if you are noticing water leaking from your unit, address it immediately. It could be due to a loose valve or fitting, or something much more complex, but professional assistance will be needed.

We’ll explain what’s going wrong, offer the most cost-effective fix, and provide preventative tips to keep your unit running smoothly.

Steve’s Plumbing and A/C – Maui provides fast, efficient tankless water heater repairs you can count on.

Relax, We'll Handle It

1. Request a Service Visit From Steve's

Steve's offers fast response times and reliable scheduling. Simply call us or use our online scheduling tool.

2. Get Upfront Pricing Options​

One of our licensed technicians will diagnose the issue and give you a custom estimate before performing any work.

3. Relax While We Repair Your Problem

We handle every repair efficiently and effectively, ensuring the job is done right the first time. All you have to do is relax.

4. Let Us Know How We Did

Steve's is committed to excellent service, so we do it right, we make it right, or it's free. Once your repair is complete, we'd appreciate it if you could leave a review.

Tankless Water Heater Repair In Maui, HI FAQs​

This is typically a flame sensor failure, where the sensor that confirms the burner is lit isn’t detecting the flame properly and the unit shuts off as a safety measure. A dirty or degraded flame sensor can be cleaned or replaced. Other causes include a faulty gas valve that doesn’t open fully, a venting issue that allows exhaust to recirculate into the combustion air intake, or a flow sensor that’s reading incorrectly and causing the unit to behave erratically. The specific error code the unit displays helps narrow this down significantly.
Yes. Out-of-warranty units can still be repaired as long as replacement parts are available, which is typically the case for units less than 15 years old from major brands. The decision to repair versus replace comes down to the cost of the repair relative to the unit’s age and overall condition. A $300 part repair on a 6-year-old unit is straightforward to justify. A major component failure on a 14-year-old unit with other signs of wear is a closer call.
With proper annual maintenance including descaling, a quality tankless unit typically lasts 15 to 20 years. Units that skip maintenance in Maui’s moderately hard water see significantly shorter service lives because scale damage to the heat exchanger accumulates over time. The design life claimed by manufacturers assumes the unit receives the maintenance outlined in the owner’s manual.
Heat exchanger replacement is the most expensive repair on a tankless water heater, and costs vary by brand and model. For many mid-range units, the part and labor combined can reach 50 to 70 percent of the cost of a new unit. At that ratio, the age of the unit matters significantly. Steve’s Plumbing & A/C Service will give you a clear repair-versus-replace comparison so you can make the decision based on actual numbers rather than guessing.
Steve’s Plumbing & A/C Service repairs and maintains units from major brands including Navien, Noritz, Rinnai, Rheem, Takagi, and others. Technicians carry common parts for frequently serviced models. For less common brands, parts may need to be ordered, which can affect turnaround time on a repair. When scheduling, mentioning the unit’s brand and model number helps the technician prepare appropriately.

we go above & beyond for our friends and neighbors

We Do It Right, We Make It Right, or It's Free!

Related Services

Americans with Disabilities Act (ADA) Notice

We are committed to ensuring that individuals with disabilities enjoy full access to our websites. In recognition of this commitment, we are in the process of making modifications to increase the accessibility and usability of this website, using the relevant portions of the Web Content Accessibility Guidelines 2.0 (WCAG 2.0) as our standard. Please be aware that our efforts are ongoing. If at any time you have difficulty using this website or with a particular web page or function on this site, please contact us by phone at (808) 666-2819 or email us at customerservice@stevesplumbingac.com and place “Web Content Accessibility (ADA)” in the subject heading and we will make all reasonable efforts to assist you