WARNING SIGNS

Signs Your Tankless Unit Needs Service

If you notice any of the following signs, schedule tankless water heater maintenance with Hero Home Services.

Error codes on the unit display

Water that starts hot and goes lukewarm

Lower water pressure at hot taps

Unit running longer to deliver the same hot water

Last service was more than a year ago

WHY IT MATTERS

Why Tankless Water Heaters Need Yearly Maintenance

A tankless water heater is built to run 15 to 20 years, but that lifespan depends on one thing: keeping the heat exchanger clean. Minneapolis tap water is hard enough that calcium and mineral scale accumulate inside the unit faster than most homeowners expect. In fact, scale is the single biggest reason tankless units underperform and fail early. Annual tankless water heater service keeps the heat exchanger clear, the burner clean, and the warranty intact.

Leave it too long and the symptoms start to stack up. The unit short cycles. Hot water pressure drops. Error codes appear. Gas consumption climbs. What starts as a skipped annual visit turns into a repair call, or worse, a full replacement that a little maintenance would have prevented. Hero Home Services keeps your system running the way it was designed to run.

WHAT’S INCLUDED/strong>

What Hero Tankless Water Heater Maintenance Covers

Every tankless water heater service visit covers the same checklist, with flat-rate pricing quoted in writing before any work begins.

  • Full flush with manufacturer-approved descaling solution
  • Inlet and outlet filter inspection and cleaning
  • Heat exchanger inspection and cleaning as needed
  • Burner and ignition system inspection
  • Combustion and venting check
  • Gas pressure verification
  • Error code review and reset
  • Condensate trap inspection (condensing units)
  • Anti-scale water treatment recommendations if needed
  • Written report of findings and any recommended follow-up

 

THE HERO DIFFERENCE

Why You Need a Licensed Plumber for Tankless Maintenance

Tankless water heater service involves gas connections, hot water under pressure, descaling chemicals, and electronics. Done incorrectly, tankless maintenance can damage the heat exchanger, create combustion hazards, and void the warranty in a single visit. A licensed Hero plumber handles every step correctly and provides written documentation that satisfies manufacturer requirements.

  • custom bullet
    Trusted Twin Cities plumbing company since 1914
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    Master plumber license PC150002 in Bloomington and TLIC24130 in Little Canada
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    Background-checked, drug-tested, in-house-trained technicians
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    Flat-rate pricing in writing before any work begins
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    No dispatch fees on any service call
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    Backed by the Hero Guarantee: Exact Price, Fixed Right the First Time, Clean House, and Experts You Can Trust

A WORD ON DIY MAINTENANCE

Why DIY Tankless Maintenance Falls Short

Store-bought flush kits do one thing: run a descaling solution through the unit. That handles scale and nothing else. A DIY flush skips the burner inspection, combustion safety check, gas pressure verification, inlet filter cleaning, and electronics review that most manufacturers require to keep your warranty valid. Some generic descaling solutions are not approved for specific brands and can degrade the heat exchanger over time. A licensed Hero plumber completes the full checklist, documents the visit, and gives you the paperwork you need to keep the warranty active.

FAQ

Common Questions About Tankless Water Heater Maintenance

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When Your Home Needs a Hero, Call Hero Home Services Today

Same-day service is available 7 days a week, featuring 24/7 answering and no dispatch fees on any service call.

(612) 827-4674