Tankless Water Heater Repair in Hanahan, SC
Tankless water heater repair in Hanahan, SC that starts with the display, not a guess. Most faults turn out to be one part or a scaled exchanger, and you see the price in writing first.
- Run at full demand before we go
- Error history read first
- Gas and electric units
Fault found first
The code, the stored history and each suspect part are tested before anything is ordered.
Price agreed in writing
Parts and labor go on a written quote, and nothing starts until you approve it.
Licensed local techs
Repairs by licensed technicians who work in your part of town.
Tankless units only
One specialty: gas and electric tankless heaters that stopped doing their job.
Tankless Units in Hanahan Homes
Hanahan winters are mild but not frost-free, and an outdoor unit without power on a freezing night can crack a fitting. Flow sensors and igniters are the other usual parts.
What we run into in Hanahan
- Freeze damage. Cold snaps do damage here when the power drops overnight. A frozen line or a cracked fitting under the unit is a repair we see after every deep freeze.
- Retrofit installs. In older homes converted to tankless, the original gas piping is not always big enough. Pressure gets measured with the burner at full fire before parts are blamed.
Repair visits reach all of Hanahan: 29410.
Call (380) 273-8196Tankless Problems We Fix Around Hanahan
The list below covers what we find on most visits for tankless water heater repair in Hanahan, SC, from ignition codes to drips under the cabinet.
Unit won't light
No ignition usually means gas pressure, a worn igniter, a dirty flame rod or a blocked vent. Each is tested.
Water under the unit
Drips come from service valves, fittings, the relief valve, the condensate line or the heat exchanger itself.
Code 10 or E110
An air or exhaust code stops the burner for safety. The intake and exhaust are cleared and checked.
Display is blank
No power at the outlet, a blown fuse or a failed control board.
Frozen after a cold night
Lines feeding the unit froze, or freeze protection lost power.
Error code keeps coming back
A reset only clears the symptom. Repeated ignition or exhaust codes need a visit.
Can't tell which one you have? Read us the display and describe the water, and the likely fault comes back on the call.
Fix It or Retire It? Deciding in Hanahan
Gas tankless units commonly last 20 years or more with flushing, so a single failed part rarely means a new heater. A failed exchanger outside its warranty, on a unit past 15 years, is where replacement starts to win.
Not sure which side of the line you are on? Call (380) 273-8196 with the brand, the age on the label and the code. You will hear whether a repair makes sense before anyone comes out.
Call (380) 273-8196Estimated Repair Costs in Hanahan
Expect an estimated $150 to $800 for tankless water heater repair in Hanahan, SC when a sensor, igniter, flame rod or descale is the fix. Exchanger jobs run higher, estimated at $1,000 to $2,500.
Diagnosis & code check
- Stored error history read
- Gas pressure measured under load
- Model and serial noted for warranty
Repairs & descaling
- Unit run at full demand afterwards
- Heat exchanger descaled
- Igniter, flame rod or sensor replaced
Heat exchanger & major parts
- Honest word if a new unit is the better spend
- Warranty part claimed where it applies
- Fan motor or blower replaced
Need Tankless Water Heater Repair in Hanahan, SC? Call Today
The sooner a fault is tested, the more likely it is a small part and not a big one.
Hanahan Homes by the Numbers
Gas heats about 36% of homes in Hanahan and electricity about 61%, so both gas and electric tankless units turn up on calls here. The median home here dates from 1987, so tankless units are a mix of original-era installs and newer replacements, and an older unit that has never been descaled is a frequent find. Owners live in about 68% of Hanahan homes (single-family about 75%), so the person who calls is usually the person who decides.
Hanahan covers about 11 square miles and holds roughly 21,119 residents, around 2,009 per square mile: spread out, with mostly detached homes on larger lots and longer runs between fixtures and the street. Among the 188 South Carolina places we cover, it ranks number 24 by population.
Source: U.S. Census Bureau, American Community Survey 2019-2023 5-year estimates for Hanahan, SC.
Where We Go in Hanahan
Repair visits reach all of Hanahan: 29410.
- 29410
Nearby Cities We Serve
Tankless Water Heater Repair in Hanahan, SC: FAQs
Question not covered here?
Call and ask. Someone who repairs tankless units answers, and the phone quote is free.
Call (380) 273-8196How much does tankless water heater repair in Hanahan, SC cost?
Most repairs cost an estimated $150 to $800, depending on the part. Descaling alone is estimated at $150 to $350, and a heat exchanger at $1,000 to $2,500. Freeze repairs depend on what split, and are priced once the damage is seen.
Can a tankless water heater be repaired?
Yes, in most cases. Igniters, flame rods, flow sensors, thermistors, fans, gas valves and boards are all replaceable, and scale can be descaled. A leaking heat exchanger on an old unit is the main exception.
Why is my tankless water heater not turning on?
Check for power at the outlet and that the gas valve is open. Beyond that it is usually low flow, a clogged inlet filter, a failed flow sensor or an ignition fault.
How often should a tankless water heater be flushed?
Most makers call for a flush every year, and every six months on very hard water. On very soft water the gap can be longer, but skipping it for years invites scale faults.
Schedule a Tankless Visit in Hanahan
Call (380) 273-8196. Nothing is repaired until you have approved the written quote.
Talk to a Tankless Technician in Hanahan
Covering Hanahan
29410, and the neighboring parts of Berkeley County.
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