Gas and electric tankless unitsFaults measured, not guessed
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Condensing tankless water heater with PVC vents on a basement wall, checked during tankless water heater repair in New London, CT
Now serving New London, CT

Tankless Water Heater Repair in New London, CT

Shower gone cold and a number blinking on the panel? Call about tankless water heater repair in New London, CT, describe what you're seeing, and we'll tell you what's probably wrong and what it should roughly cost, right on that call.

  • Navien, Rinnai, Rheem, Takagi, Noritz
  • Every hot tap tested at the end
  • You approve the price before work

Diagnosis before parts

We confirm what failed by testing it, so you never pay for a guess or a part that wasn't needed.

You approve the cost

The repair and its price are spelled out on paper, and work begins only after you say yes.

Technicians near you

The person at your door works your area and repairs on-demand heaters week in, week out.

Only tankless repair

No tank heaters, no remodels. Gas and electric on-demand units are the whole job.

White clapboard colonial, the kind of home where we offer tankless water heater repair in New London, CT
New London, CTNew London County
Local know-how

What New London Does to a Tankless Heater

Basements are where most New London tankless heaters live, often condensing models vented out the side wall. Every winter brings snow against that vent and condensate lines that clog.

Local factors in New London

  • Basement heaters. With a basement heater, a plugged condensate trap or a dead pump can shut things down with a code well before any puddle shows up.
  • Snow-blocked vents. Drifted snow against a sidewall vent will shut a heater off with a vent code until someone digs out the termination.
  • Winter freezes. Overnight power outages during cold snaps are what cause damage locally; after each hard freeze we repair frozen lines and cracked fittings beneath heaters.
1ZIP code served
27,199People in New London
New LondonHome county

Service reaches across New London (06320) and into neighboring areas of New London County.

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Symptoms

Tankless Trouble We See in New London

If you need tankless water heater repair in New London, CT, your problem is very likely listed here. Each symptom has only a handful of possible causes.

Flame rod cleaned inside an open tankless water heater during tankless water heater repair in New London, CT

No-ignition code (11, E003, 111)

Clicking with no flame means something in the gas, ignition or vent path is off. We work through all three.

Water dripping from the service valves of a tankless water heater, traced during tankless water heater repair in New London, CT

Dripping from the cabinet

Where the water comes from decides the bill: a valve or a joint is minor, a failed exchanger is not.

Technician checking the vent terminations of a tankless water heater during tankless water heater repair in New London, CT

Air supply or exhaust fault

A venting code means the heater can't move air: a blocked cap, a bird or wasp nest, drifted snow or an overlong vent.

Only one faucet runs cold

Typically a worn mixing cartridge or a crossover at that fixture, rather than the heater itself.

Rinnai showing LC

That's the scale warning. The exchanger is due for a descale, and it shouldn't wait long.

No hot water after a freeze

A supply line froze, or the heater lost electricity and its freeze protection with it.

Not sure which of these it is? Describe the symptoms on the phone and we'll tell you what it most likely is.

Heat exchanger, burner and wiring of an open tankless unit, inspected during tankless water heater repair in New London, CT
Repair or new unit?Mostly down to the exchanger
Worth fixing?

Keep It Running or Replace It in New London?

Flow sensors, igniters, blowers, flame rods, gas valves and control boards are sensible repairs on nearly any heater. The real decision comes when an aging unit's heat exchanger cracks or leaks, since that single part can cost close to a new heater.

When you call (888) 987-0567, mention the make, the approximate age and what the heater is doing. If a repair isn't worth the money, we'll say so plainly.

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Price ranges

What a Tankless Fix Costs in New London

When the fix is a flow sensor, an igniter, a flame rod or a flush, tankless water heater repair in New London, CT typically runs an estimated $150–$800. Swapping the exchanger is the bigger job, at an estimated $1,000–$2,500.

Diagnostic visit

$100–$250
Estimated visit fee
  • Label age and serial recorded
  • Inlet screen, flow rate and vent inspected
  • Fault codes and log reviewed
Call for a price
Most common

Component repair & descale

$150–$800
Estimated · typical range
  • Flow sensor diagnosed and replaced
  • Igniter, flame sensor or thermistor changed
  • Service valves fitted for future flushes
Call for a price

Exchanger & major components

$1,000–$2,500
Estimated · largest repairs
  • Combustion and temperature verified
  • Gas valve or control board changed
  • Blower motor replaced
Call for a price

Get Tankless Water Heater Repair in New London, CT Today

Every cycle on a scaled or misfiring heater adds wear. Book now while the fix is still a simple one.

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Census snapshot

Housing in New London at a Glance

12,514homes in total
1947typical build year
46%use gas heat
40%lived in by owners

About 46% of homes here heat with gas and about 31% with electricity, so a tankless fault in New London can sit on the burner side or the element side depending on the house. Half the housing here predates 1947, when homes were piped and vented for tank heaters; a tankless unit added later often needed a larger gas line, a new vent path or a condensate drain, and those add-ons are frequent starting points for a fault. Just 40% of homes here are owner-occupied, so a large share of tankless repairs are approved by landlords and property managers, who typically ask for the diagnosis and an estimated cost before work begins.

At roughly 4,848 people per square mile (about 27,199 residents on 5.6 square miles), New London is suburban in feel, with detached houses mixed in among townhomes and smaller complexes. Our Connecticut coverage list has 88 communities, and this one is number 21 among them by population.

Figures: 2019-2023 five-year American Community Survey estimates for New London, CT, published by the Census Bureau.

Local climate

New London Weather and Water Temperature

9 ftabove sea level
53°Fyearly average air
95 nightsat or below freezing
~43°Fwinter tap water

New London sees about 95 nights a year at or below freezing, and the coldest night of the last three winters fell to -5°F. Where that is normal, exposed water lines, condensate drains and outdoor vent terminations are the parts that fail first, and a heater with no freeze protection or a power cut is a real risk.

Water arriving at a New London tap in winter is likely near 43°F (averages of about 32°F in January air and 53°F over the year). To reach 120°F a tankless unit must add roughly 77°F, which a 199,000 BTU gas model at 90% efficiency can do for about 4.6 gallons per minute. In July the water is nearer 64°F, so the same unit has to add only about 56°F and can supply about 6.4 gallons per minute.

Since a shower uses about 2 gallons per minute, that winter ceiling is why a heater that handles one shower easily can run lukewarm when a second shower and the dishwasher start. Lukewarm water at full demand is a limit of the design, not always a fault, whereas lukewarm water at a single tap points to scale, a sensor or an ignition problem.

Weather: NASA POWER daily temperatures, 2021-2023, for the grid cell around New London, CT, corrected to the town's elevation (USGS). Tap-water temperatures and flow rates are estimates, not measurements.

Service area

ZIP Codes We Cover in New London

Service reaches across New London (06320) and into neighboring areas of New London County.

  • 06320

Close-by cities

FAQ

Tankless Water Heater Repair in New London, CT: FAQs

Clogged inlet filter screen removed from a tankless unit during tankless water heater repair in New London, CT

Still unsure?

Phone us and describe what the unit is doing. A tankless tech can usually narrow it down while you are on the line.

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What does tankless water heater repair in New London, CT cost?

Depending on which part failed, most repairs run an estimated $150–$800. Expect an estimated $150–$350 for a stand-alone descale and an estimated $1,000–$2,500 for a replacement heat exchanger. Freeze damage is priced once we see what cracked, since no two splits are alike.

How often does a tankless water heater need flushing?

Most manufacturers recommend once a year, or every six months where the water is very hard. Soft-water homes can go longer, but years without a flush lead to scale faults. With roughly 95 freezing nights a year in New London, early autumn is a sensible time for the flush: the unit is about to carry its heaviest winter load.

Do tankless water heaters have a reset button?

Usually by power: turn the heater off, wait a moment, turn it back on. That clears the code, but if it returns, a component needs attention.

What usually goes wrong with tankless water heaters?

Scale in the heat exchanger tops the list, then ignition faults, then flow sensor and inlet screen problems. Each usually announces itself with an error code or with water that runs hot and then fades. In New London, cold nights add vent-cap, condensate-line and exposed-pipe problems to the usual list.

Outdoor tankless water heater beside the gas meter on a stucco wall, a common setup for tankless water heater repair in New London, CT

Schedule Tankless Repair in New London

At (888) 987-0567 you reach people who deal with on-demand heaters all day. Tell us what's happening and choose a time.

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Speak With a Tankless Tech in New London

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(888) 987-0567

One call gets you the probable cause, a price range and an appointment.

Around New London

ZIP codes 06320, and the surrounding parts of New London County.

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