Pool Heater Repair Charleston, SC
Premium Pool Heater Repair for Homeowners Across Charleston, SC
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Expert Pool Heater Repair Charleston, SC
Stay Comfortable Year-Round with Reliable Pool Heater Repairs by 843 Pool Service
Few things are more disappointing than planning a relaxing swim—only to discover your pool heater isn’t working. Whether you depend on your heater for early-morning laps, evening wind-downs, therapeutic warm-water use, or extending your swimming season, a malfunctioning heater can disrupt your entire routine. At 843 Pool Service, we provide expert pool heater repair throughout Charleston, North Charleston, Mount Pleasant, Summerville, Goose Creek, Hanahan, Ladson, Daniel Island, James Island, Johns Island, Sullivan’s Island, and Isle of Palms, ensuring your pool stays warm, efficient, and ready whenever you want to enjoy it.
Charleston’s coastal weather can be unpredictable, cool mornings, mild winters, sudden cold fronts, and breezy evenings all make a functioning pool heater essential for comfort and year-round usability. If your heater won’t turn on, isn’t reaching the right temperature, keeps cycling on and off, or displays error codes, our skilled team is ready to diagnose the issue and restore your system quickly and safely.
We service all major pool heater brands and models, including gas, electric, and heat pump systems, and we understand how Charleston’s humidity, salt-influenced air, water chemistry, and seasonal usage patterns impact heater performance. No matter the issue, 843 Pool Service delivers fast, accurate repair solutions so you can get back to enjoying your pool warm, comfortable, and completely worry-free.
Need pool service? Get in touch with us and schedule your FREE pool service quote from 843 Pool Service
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WHAT OUR CLIENT SAYS
Trusted by 100+ homes throughout Charleston, SC and neighboring cities.
We treat our customers like family, which is why we crafted our Pool Service plans to service our customers with the utmost professional service so you can enjoy your pool worry free.
Why Choose Us
Experience the Next Level Difference To Pool Service
843 Pool Service delivers reliable, high-quality pool care for homeowners across Charleston, SC and surrounding areas. From weekly maintenance to green pool recovery and equipment repairs, our experienced team uses premium chemicals and proven methods to keep your pool clean, safe, and swim-ready year-round. Trusted, transparent, and always professional—we make pool ownership easy.
Over 10 years of experience in the pool service industry spanning across 2 counties.
Servicing over 100+ customers a year while maintaining a 5 star rating from our clients.
When you choose 843 Pool Service, you have a friend in the industry you can trust.
We are availabler day and night for our customers. We take your business seriously.
Why Pool Heaters Fail in the Charleston, South Carolina Climate
Charleston may be known for its long warm seasons, but pool owners across Charleston, Mount Pleasant, North Charleston, Summerville, Goose Creek, Hanahan, Ladson, Daniel Island, James Island, Johns Island, Sullivan’s Island, and Isle of Palms still rely on their heaters for early-morning swims, cooler evenings, and extended seasonal use. But the same coastal climate that makes pool ownership so enjoyable can also contribute to premature wear and tear on pool heating systems. From humidity to salt-influenced air, several Lowcountry-specific factors can impact heater performance and lead to breakdowns.
One of the most common issues is mineral and scale buildup inside the heat exchanger, caused by fluctuating water balance and Charleston’s naturally occurring minerals. As scale builds up, it restricts water flow and reduces heat transfer, forcing the heater to work harder often leading to overheating, inefficiency, or premature failure.
Charleston’s windy conditions, coastal storms, and tropical weather patterns also blow sand, salt mist, dirt, and debris into heaters. This can clog burners, igniters, airflow sensors, or heat pump coils, especially in outdoor equipment installations common throughout Charleston County. Storm runoff and salt spray can accelerate corrosion on metal components, wiring, and connectors.
Improper ventilation can cause overheating or safety shutoffs, while unbalanced water chemistry may corrode internal parts or damage heat exchangers. During cooler months, small animals sometimes nest inside heaters, leading to chewed wires, blocked vents, or damaged insulation. Low flow rates caused by dirty filters, pump issues, or restricted plumbing can also trigger heater error codes or prevent the heater from firing at all.
And as systems age, electrical faults, sensor failures, and worn relays become increasingly common, especially after strong storms, power fluctuations, or extended periods of high humidity.
These challenges affect both gas and electric heaters, as well as heat pump systems found throughout Charleston and the surrounding coastal communities. That’s why professional diagnosis and repair is essential. 843 Pool Service has the expertise to identify these issues quickly, resolve them safely, and restore your heater to peak performance so your pool stays warm, comfortable, and swim-ready anytime you need it.
Types of Pool Heaters We Repair
At 843 Pool Service, our technicians are trained to diagnose and repair all major pool heater types and brands found throughout Charleston, North Charleston, Mount Pleasant, Summerville, Goose Creek, Hanahan, Ladson, Daniel Island, James Island, Johns Island, Sullivan’s Island, and Isle of Palms. Whether your system runs on natural gas, propane, electricity, or a heat pump, we have the tools, experience, and technical knowledge to restore safe, efficient, and reliable heating.
Natural Gas Pool Heaters
Natural gas heaters are extremely common in Charleston and the surrounding Lowcountry thanks to their fast heating capabilities. However, they can develop issues such as burner failure, ignition problems, flame-sensor faults, or gas valve malfunction. We perform a complete diagnostic inspection to ensure your unit operates safely, efficiently, and according to manufacturer specifications.
Propane Pool Heaters
Homes without natural gas service, especially in more rural areas of Charleston County often rely on propane heaters for pool and spa heating. These systems require proper venting, accurate gas pressure, and tightly regulated operation. We inspect ignition components, sensors, tank connections, regulators, and safety switches to ensure consistent, reliable performance.
Electric Resistance Heaters
Commonly used for spas and smaller pool systems, electric resistance heaters rely on heating elements that can corrode, burn out, or fail due to mineral buildup or unbalanced water chemistry. We test continuity, voltage, thermostats, and wiring to determine whether your element or internal components need repair or replacement.
Heat Pumps
Heat pumps are popular across Charleston for their energy efficiency, especially during mild spring and fall seasons. However, they can suffer from refrigerant leaks, capacitor failure, dirty coils, low airflow, or malfunctioning sensors. We evaluate compressor health, refrigerant balance, electrical performance, and airflow to keep your heat pump running smoothly and efficiently.
Pool/Spa Combo Heaters
Many homeowners in communities such as Mount Pleasant, Daniel Island, Summerville, and Johns Island use a single system to heat both the pool and spa. When these systems fail, diverter valves, automation controls, actuators, or zone-control components are often at fault. We ensure seamless switching, accurate temperature control, and proper operation across both water bodies.
Our Heater Repair Process: Accurate, Efficient, and Honest
When you call 843 Pool Service for heater repair, we don’t guess—we diagnose with precision. Our process is designed to identify the exact cause of the problem and deliver a reliable solution, not a temporary fix.
Initial System Inspection
We begin with a full heater inspection, checking for visible damage, corrosion, debris buildup, rodent activity, or wear. This is followed by diagnostic testing of fuel pressure, electrical continuity, internal sensors, and overall system integrity.
Component Testing
Using advanced diagnostic tools—multimeters, pressure gauges, flow meters, and manufacturer-specific equipment—we test each component individually, including ignitors, blowers, thermostats, flame sensors, pressure switches, circuit boards, and safeties.
Flow & Filtration Analysis
Low water flow is one of the most common causes of heater errors. We evaluate pump performance, filter pressure, valve settings, and circulation to ensure the heater is receiving adequate flow for safe operation.
Diagnosis & Repair Estimate
You’ll receive a clear, honest explanation of the problem and your repair options. We break down what failed, why it failed, and how to fix it—no surprises, no pressure to replace equipment that still has life left.
Repair & System Testing
Once approved, we complete the repair and run a full system test, checking temperature rise, ignition performance, cycling behavior, and safety shutoffs. We also review your system’s settings and automation to ensure everything is functioning correctly.
Signs Your Pool Heater Needs Repair
If your pool heater is struggling, you’ll often notice the warning signs long before it stops working entirely. Common indicators include water that never reaches the desired temperature, a heater that won’t turn on, or digital error codes flashing on the control panel. You might also hear unusual noises, notice weak or no airflow from gas units, detect burning or electrical smells, or see water pooling around the heater. In some cases, the heater may turn on but shut off prematurely, or your pool may stay cloudy due to circulation issues connected to heater malfunction. Any of these symptoms signal that your heater needs professional attention—and the sooner it’s inspected, the less risk there is of costly damage to your system.
Why Homeowners Choose 843 Pool Service for Heater Repair
Homeowners across Charleston, SC trust 843 Pool Service because we combine deep technical expertise with a commitment to integrity, communication, and customer-first service. With 843 Pool Service, you get:
Certified pool equipment technicians experienced with all major heater brands
Honest troubleshooting, not guesswork or unnecessary upsells
Upfront pricing and clear repair vs. replace recommendations
Fast response times, especially during seasonal temperature drops
A local team that understands Charleston, SC climate and water conditions
Repairs completed with high-quality parts for long-lasting reliability
Whether your heater is new or more than a decade old, we deliver clear answers and smart solutions.
Get Your Pool Heater Running Again—Fast
Don’t let a faulty heater take the enjoyment out of your pool. Whether you need a quick repair, a diagnostic evaluation, or honest advice about replacement, 843 Pool Service is your trusted local source for professional heater repair in the Charleston, SC area.
Schedule your heater repair today and let 843 Pool Service bring the warmth and comfort back to your pool—quickly, safely, and affordably.
Our Charleston, SC Service Areas
- Charleston
- North Charleston
- Mount Pleasant
- Summerville
- Goose Creek
- Hanahan
- Ladson
- Daniel Island
- James Island
- Johns Island
- Sullivan's Island
- Isle of Palms
Got Questions?
We’ve shared a series of our most common questions and answered them. If you need additional information or have other questions, never hesitate to reach out to us.
We proudly serve Daniel Island, and the greater Charleston South Carolina area, including communities throughout Charleston County and within a 15-mile radius.
Our Full Service includes chemical balancing, skimming, brushing, vacuuming, equipment inspections, and biannual filter cleanings.
This is our pool recovery package designed to restore green, algae-filled pools back to clean and swimmable conditions using chemicals, brushing, filter cleaning, and equipment inspections.
Yes, we offer new plaster start-up services that include multiple visits, water balancing, brushing, filter cleaning, and a care guide.
Yes. We install pool automation systems that let you control pumps, heating, lighting, and water features right from your smartphone or tablet.
Prices vary based on your pool’s size and condition. Chemical Only service starts at $100+/month and Full Service starts at $170+/month.
Absolutely. We service and install pumps, filters, motors, automation systems, chlorinators, and more.
This includes draining the pool, chlorine washing, equipment and filter cleaning, refilling the pool, and chemical rebalancing.
No. As long as we have access to the pool and equipment, we can perform services without you needing to be present.