Error Code? No Hot Water? Get Fast, Reliable Tankless Boiler Repairs in Hewlett

If your tankless combi boiler is flashing an error code — like E003, E012, or E110 — you need a local expert who knows exactly what that means.

At Pipe Doctor Home Services, we provide professional, licensed tankless combi boiler repair services throughout Hewlett, NY. We specialize in diagnosing and fixing all error codes found on modern tankless combination heating systems — no guesswork, no delays, just solutions.

Why Hewlett Homeowners Call Pipe Doctor

  • Based right here in Nassau County – we know Hewlett like the back of our hand
  • Highly trained techs with years of tankless experience
  • Fully stocked trucks with parts for same-day repairs
  • Transparent pricing & 24-month satisfaction guarantee
  • Respectful, uniformed technicians who treat your home with care

Complete List of Tankless Combi Error Codes We Repair

Whether your system is throwing one of these codes or something unfamiliar, we can help:
E001 – Low water pressure
E003 – Ignition failure
E005 – Flame loss after ignition
E010 / E110 – Exhaust blockage or high exhaust temperature
E012 – Flame loss during operation
E016 – Overheating or blocked heat exchanger
E021 / E028 / E030 – Sensor or valve errors
E060 / E062 – Domestic hot water temperature fault
E351 – E438 – Advanced communication or control board faults
These codes aren’t random — they’re warnings that your unit may be unsafe or failing. Don’t risk damage or dangerous conditions by ignoring them.

What’s Included With Every Repair Visit

Detailed diagnostic by a licensed boiler specialist
• On-site repair with original or OEM-quality parts
• Clear explanations and pricing before work begins
• No trip charge if you’re a maintenance plan member
• Emergency response available for Hewlett homes

From Hewlett Neck to Hewlett Bay Park, we serve your entire neighborhood and beyond.

Need Tankless Combi Boiler Repair in Hewlett?

We’re just around the corner — and we’re ready to help.
Call Now: (516) 348-6300
Located near you. Proudly serving Hewlett and all Five Towns.

From a Local Hewlett Client

“Our combi boiler kept showing E005 and we had no hot water. Called Pipe Doctor and within hours they diagnosed a burner issue and had it fixed same day. Super clean, professional, and local — can’t recommend enough.”
— Sarah L., Hewlett NY

Pro Tip:

Many tankless combi boilers have sensitive sensors that will shut down the entire unit with the slightest fault. Resetting the unit won’t solve the issue — a qualified technician will.

Learn more about Hewlett, New York,
Hewlett, NY Map,
Hewlett, NY Post Office,
Weather report for Hewlett, NY,
Hewlett, NY public and private schools
Hewlett, NY is located in Nassau County in New York.

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Reviews & Testimonials

Customer satisfaction is our #1 priority

J. King

Daniel and Mike did a great job repairing my Navien. They were here right away and fixed the issue I was having. I would highly recommend Pipe Doctor!

J. Miller

Mike and his crew are fantastic. Aside from exceptional work which is evident if you watch any of the YouTube clips, Mike’s knowledge is out of this world. Not only does he know his stuff, he also spent the time to make sure I had a solid background of the inner workings of the system. That’s very helpful to a homeowner!

D. Summers

My water heater stop working and I needed a replacement. I Called pipe doctor and within 3 hrs Mike showed up, looked at it, and gave me a reasonable price. Mike was very professional and did a great job. Keep up the great work!!!

S. Gordon

Pipe Doctor is such a pleasure to work with the customer service department is so efficient. The plumbers were on time and a pleasure to work with. Mike G is a real professional not only is he meticulous in his work, he cleans up and makes the place look cleaner than when he would started. Would highly recommend their service.

T. Van Buskrik

This is my second year using Pipe Doctor for my HVAC maintenance. Mike and his technicians are simply the best in the business. They arrive on time, are courteous, and most importantly they know their stuff. They do the job right.

J. Pearl

Had the original boiler in our house finally go. Within 24 hours mike was here to put a brand new boiler in and we are warm again. Would definitely use pipe doctor again!

M. De La Torre

Mike and his crew replaced my waste pipes. They took their time and did a great job making sure there were no leaks and cleaned up after they were done. Will continue to use them for other projects.

Peggy M.

Been Relying on These Guys for Years.
Good work, fair price, quick response, and nice guys who are professional and know their stuff. They’ve never disappointed me.

Parrish Family

While we live several states away, we watch the videos that Pipe Doctor releases on Youtube. Mikey is extremely responsive on their social media platforms, even to people that are not their direct customers. If Pipe Doctor ever branches out to my area, we will absolutely use them for all our HVAC and plumbing needs.

H. Bains

I have been following Mikey Pipes/ Pipe Doctor on his YouTube channel and having watched all of his videos I must say that he is one of the most honest contractors I have ever seen and his professionalism is incredible. It is so impressive that he always gets to the root of the problem quickly and always comes up with the very best solution on the spot. Anyone that hires his services must consider themselves lucky!

R. Philip

Pipe Doctor is definitely an A++ local business that is amazingly professional, more than reasonable in pricing, and super super fast. They do not skimp in on using the best product and the services that they provide is second to none. They finished my water heater install same day in the snow within 2 hrs from call, negotiating, delivery and removal. Will use in the future without a doubt. Pipe Doctor second to none!

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