Tankless Combi Boiler Repair in Lynbrook, Long Island, NY

We Diagnose & Fix All Tankless Combi Error Codes — Fast, Professional & Guaranteed

If your boiler’s display is flashing an error like E003, E028, or E110, don’t wait for it to get worse. These codes signal a problem that needs expert attention.

At Pipe Doctor Home Services, we’re your go-to tankless combi boiler repair experts in Lynbrook, NY. Whether it’s no heat, no hot water, or a code you’ve never seen before — we’ll get it fixed the right way, right away.

Why Choose Us for Your Boiler Repairs in Lynbrook?

Experienced, licensed techs who specialize in tankless units
Rapid response throughout Lynbrook and Nassau County
Real diagnostic and repair — not guesswork
Fully stocked service trucks = fewer delays
Every repair backed by our 24-month satisfaction guarantee

From Atlantic Avenue to Scranton Avenue, we serve every corner of Lynbrook — and we show up when others don’t.

What Do These Tankless Combi Error Codes Mean?

We troubleshoot and repair every known tankless combi boiler error, including:
• E001 – Low water pressure in the system
• E003 – Failed ignition sequence
• E004 / E005 – Flame sensor faults
• E010 / E110 – Blocked venting or overheating exhaust
• E012 – Loss of flame during operation
• E016 – Heat exchanger overheating
• E021, E028, E030 – Sensor or valve issues
• E062 – Domestic hot water overheating
• E351–E438 – Advanced electronic control or communication errors

Repeated resets won’t fix these issues — in fact, they can make the problem worse. Let us handle it properly and safely.

What You Get With Every Service Call

On-time arrival in a clearly marked Pipe Doctor service van
Detailed diagnostics using manufacturer-level tools
Professional repair with OEM-grade components
Flat-rate pricing upfront — no surprises
Courteous, respectful technicians who clean up after themselves

Schedule Tankless Combi Boiler Repair in Lynbrook Today

We’re just minutes away and ready to help.
Call Now: (516) 348-6300

A Local Story From Lynbrook

“When our combi unit showed E003 and shut off in the middle of winter, I called Pipe Doctor. They were here within hours, found a faulty ignitor, and got us up and running that same day. Super professional and honest.”
— Tina S., Lynbrook NY

Tip from the Techs:

If your tankless unit shuts down with an error, avoid constantly resetting it. That’s like covering the check engine light with tape. Instead, get it properly diagnosed — we’ll give you answers and options.

Serving all of Lynbrook and neighboring communities, including Rockville Centre, Valley Stream, and East Rockaway.

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

(516) 360-2989 Request Service Review Us

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.

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!

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!

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!!!

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!

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.

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!

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.

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.

Tankless Combi Boiler Acting Up in Lynbrook, NY?