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What Maintenance Is Needed for Tankless Water Heater?

Tankless water heaters are amazing modern innovations that can help those with hot water demands exceeding the capacity and capabilities of a system. Tankless systems are usually sleek, compact, and easier to care for than traditional water heaters, and they are ideal for both homes and large-scale properties. While tankless systems are low maintenance and generally easy to care for overall, they do require some upkeep to ensure you maximize the lifespan of your appliance. A simple maintenance schedule can prevent an early system failure because a well-maintained system can easily enjoy a twenty-year lifespan, which is double that of a conventional water heater. Industry experts advise annual maintenance for your tankless water heater, but you may need bi-annual maintenance services if you live in an area with hard water. Regular maintenance can ensure your system components are in good shape, too.

Services Commonly Included in Tankless Water Heater Maintenance

Tankless water heaters don’t store water, so maintenance isn’t as complicated as traditional units. Residential and industrial tankless water heater maintenance typically includes:

System Flushing: The tankless water heater will need to be flushed annually to rid the system of mineral buildup. If you have hard water, you may experience faster mineral deposits. When minerals are allowed to fill up in your system, it can negatively impact the energy efficiency of your tankless water heater. Flushing your system will improve system performance but using it while it’s filled with minerals can lead to reduced lifespan and higher energy fees.

Air Filter Replacement or Cleaning: Tankless water heaters have air filters installed that should be cleaned regularly. If the filter is beyond cleaning, you may need to replace it. If your system has been maintained in the last several years, it should be easy to clean the filter with a brush, soap, and water. Once you clean the filter, it must be completely dry before returning it to the water heater. Don’t let your filter become so soiled it cannot be cleaned because it will need to be replaced.

Water Filter: While you’re cleaning the air filter, the water filter needs to be checked as well. Your water filter is another line of defense against hard water. Most tankless systems have a water filter, which is a screen that traps sediment found in your water. Sediment allowed to stay in your system can negatively impact the function of your system, restricting the overall usability of your tankless system. The system will need to be disconnected from your water supply, and the filter will need to be cleaned with soap and dried completely before reinstalling.

Tank Cleaning: Your tankless water heater is a much smaller system than a traditional water heater, and while it’s smaller and doesn’t store water, it still can accumulate dirt, dust, and debris. A dirty system can cause countless issues and impact the efficiency of your system. You can clean your system by disconnecting power and water. The tank needs to be cleaned with a cloth to pick up any built-up grime on the system.

Arco Home Services is an Elite Service Provider

By regularly scheduling maintenance for your tankless water heater, you can ensure the system operates efficiently. In addition to these main tasks, our Cleveland tankless water heater specialists will also inspect your system components, including pipes and valves. At Arco Home Services, our expert technicians will also thoroughly inspect your system to ensure there are no signs of system problems, like leaks or rust.

  • We offer 24/7 emergency services
  • We offer award-winning customer service
  • We are an A+ accredited BBB service provider
  • Our trucks are fully stocked and ready for anything
  • We have highly trained and educated service providers

If you need assistance with this maintenance, Arco Home Services can help! As a licensed plumbing company, our trained professionals have many years of experience servicing tankless systems.

For tankless water heater maintenance in Cleveland or a nearby area, contact Arco Home Services today at (216) 202-3778!

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Andrew came out and inspectioned my furnace to make sure it's ready for the upcoming Cleveland Ohio winter. He showed me the parts that needed replaced and explained what those parts do. Then he went over different options for financing.

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Angel Black

October 2, 2026

I had a great experience with Shaun. He was professional, knowledgeable, and clearly knew his stuff. He quickly diagnosed the issue, explained everything clearly, and completed the repair efficiently. What stood out most was his expertise and attention to detail. It’s not often you find someone who is both highly skilled and genuinely committed to providing excellent service. I highly recommend Shaun to anyone. I will definitely use his services again in the future. Thank you for the outstanding work!

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Inday R

October 1, 2026

Tech Andrew came out for our seasonal furnace inspection. He was efficient and knowledgeable. He maintained the great experience I’ve had using Arco.

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Ian Kish

October 1, 2026

Cliff was great. on time and made sure my new generator is working perfectly. Highly highly recommend

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Ben Deccola

September 30, 2026

I had my furnace installed by arco and it has been great. When I had an issue they came out same day. Andrew was very knowledgeable and quick with his diagnosis. Had my issue solved within minutes and offered me multiple solutions for prevention.

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Jane Howell

September 30, 2026

Great service. Recieved a quote and the issue fixed same day and very friendly and professional servicemen. Would highly recommend and affordable.

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Victoria Philpotts

September 29, 2026

Andrew is great. We have had a lot of good technicians service us, but we've never had a person so thorough and explain everything so clearly. He also has a really great personality.

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Frank

September 29, 2026

Jesse was awesome, and did a great job on my PM service. I would highly recommend them and him!

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Richard Gutch

Richard Gutch

September 28, 2026

We contacted Arco Home Services for plumbing repairs. Jacob Adams was our tech. Jacob showed up on time and gave us an estimate for the multiple items we wanted done. He was professional, knowledgeable, and personable. He explained all steps and issues that were encountered and spent close to a day and a half completing the many repairs we requested. He knew what he was doing and worked diligently to make sure that the work was done timely and correctly. I can say it was a pleasure to have him complete the work we needed which included installing a new utility tub with new faucets and shut off valves, new bathroom faucet, installing a new sink with faucet and all plumbing in the second bathroom, repairing a toilet flange and reseating the toilet along with multiple other time consuming items to bring the plumbing in our older home into good working order. I can highly recommend Jacob's work and would ask for him again if I needed any additional repairs done. Thank you Jacob for a job well done.

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R. E. Tesmer

R. E. Tesmer

September 26, 2026

Andrew came out did an outstanding job serving my furnace. I had horrible experiences in the past with a different technician, but Andrew came in and turned my opinion around. Great job !

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Tina Andears

September 25, 2026

We had a limb fall on our main line and Domenic came out and replace the entire unit. Evan came out and replaced a basement unit. Both were very efficient and polite.

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Annette

September 25, 2026

Andrew came out and performed yearly maintenance on my furnace. He arrived on time and was very efficient. He informed me my system was in good condition and I am prepared for winter. Highly recommend!

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Kathryn Pierce

September 25, 2026

The ARCO rep Andrew, that took care of the A/C inspection was knowledgeable, professional and courteous! He answered questions completely!

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Giyate Giyate

September 25, 2026

Kellyed Reyes and Shaun McAlpin were great! Assessed the issue, and shared with me my options.

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Hallie Johnson

September 24, 2026

Arco representative Andrew Corrothers came out to inspect our AC unit and did a great job detailing the issues with our unit. Andrew also provided informative options for our unit and potential replacement options. Definitely a job well done by Andrew. Note: There was no charge for visit, part of my service contract.

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John Alexander

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