Pool Heater Repair in Oak Island
Diagnosis and repair for gas heaters, heat pumps, and electric pool and spa heaters across Oak Island, Southport, and St. James. We service Hayward, Pentair, Raypak, and Rheem units.
What We Service
Pool heaters fail for different reasons depending on type. Gas heaters are vulnerable to igniter faults, heat exchanger scale, and burner issues. Heat pumps depend on ambient air temperature and can lose refrigerant charge or accumulate debris on the coil. Electric heaters are simpler mechanically but develop element failures and thermostat faults. We diagnose across all three types and stock common parts for Hayward, Pentair, Raypak, and Rheem units.
Gas Heaters
- Igniter replacement
- Burner tray cleaning
- Heat exchanger service
- High-limit stat diagnosis
- Gas valve testing
- Control board repair or replacement
Heat Pumps
- Coil cleaning
- Refrigerant check
- Fan motor repair
- Thermostat calibration
- Defrost cycle diagnosis
- Flow switch testing
Electric Heaters
- Element replacement
- Thermostat replacement
- Contactor diagnosis
- Wiring inspection
- Sensor replacement
- Full unit replacement
Common Heater Problems
If you recognize one of these symptoms, describe it when you submit your repair request.
Heater fires but does not reach temperature
Heat exchanger scale buildup or undersized BTU for bather load. Common in coastal areas where source water is high in calcium.
Next step: Descaling service or BTU review.
Igniter fault or no ignition
Failed igniter, dirty burner tray, or gas supply issue. Error codes vary by manufacturer.
Next step: Igniter inspection, burner cleaning, or gas line diagnosis.
Heater runs but trips on high limit
Restricted water flow, dirty filter, or failing pressure switch. The high-limit stat protects the heat exchanger.
Next step: Flow rate check, filter service, and pressure switch test.
Control board showing fault codes
Sensor failure, water chemistry damage to electronics, or board age. Control boards in coastal environments degrade faster due to salt air.
Next step: Fault code diagnosis, sensor replacement, or board replacement.
Heat pump not heating efficiently
Refrigerant charge loss, dirty coil, or ambient temperature below operating range (below 50F for most units).
Next step: Coil cleaning, refrigerant check, or seasonal scheduling adjustment.
Heater leaking water
Failed heat exchanger, cracked header, or compromised gaskets from corrosion or scale.
Next step: Pressure test, heat exchanger inspection, or full replacement assessment.
Heater Not Working?
Describe the fault code or symptom when you submit your request. That detail helps us arrive with the right parts.
Factory-authorized service · Hayward, Pentair, Raypak, Rheem
Frequently Asked Questions
Common questions about pool equipment repair and service.
What is the best way to prevent or remove scale and metal stains, especially in a saltwater pool?
Prevention: Keep pH controlled (salt pools tend to drift pH upward), keep TA and CH in a range that avoids scale, and maintain balanced water. Removal: Scale often requires controlled chemical reduction. Metal stains require identifying the metal source first. If you have recurring scale on a salt cell, that is usually a chemistry control issue, not a 'bad cell.'
How many hours per day should I run my pool pump?
In summer, typically 6-10 hours per day (more if you have heavy debris, high bather load, or a salt system that needs runtime to generate chlorine). In winter for non-heated, low-use pools, often 2-6 hours per day. The better rule: run long enough to keep the surface clean, the filter pressure stable, and your sanitizer consistent.
My pump is noisy or losing prime. What should I do, and is it safe to keep running it?
If it is losing prime or pulling air, do not ignore it. Running dry can overheat seals and damage the pump. Check water level, skimmer and pump baskets, pump lid O-ring, valves, and watch for air bubbles at returns. If it repeatedly loses prime, sounds like grinding, or overheats, shut it down and get it diagnosed.
How often should I backwash or clean my filter, and when should I replace the sand or cartridges?
General rule: clean/backwash when filter pressure rises about 8-10 psi over clean starting pressure. Sand filters: backwash at +8-10 psi, plan sand replacement roughly every 5-7 years. Cartridge filters: clean at +8-10 psi, replace cartridges commonly every 2-4 years depending on use and care.