Tankless Water Heater Repair in Folly Beach, SC

Is Your Tankless Water Heater Acting Up? Common Signs You Need Repair

Tankless water heaters are highly efficient, but like any appliance, they can encounter problems. Recognizing the early signs of a malfunction can help you address issues before they escalate. If you're experiencing any of the following, it might be time to call for professional repair:

1. No Hot Water or Inconsistent Temperatures: Perhaps the most obvious sign, a complete lack of hot water or sudden fluctuations between hot and cold (often called the "cold water sandwich") indicates a problem with the unit's ability to heat water consistently. This could be due to gas supply issues, ignition problems, or a faulty flow sensor.
2. Displaying an Error Code: Modern tankless units come with advanced diagnostic displays that show specific error codes when something is wrong. These codes are invaluable for pinpointing the exact issue, from combustion failures to sensor malfunctions.
3. Reduced Water Pressure or Flow: If your hot water flow has significantly decreased, it could point to mineral buildup (scale) in the heat exchanger or a failing water flow sensor.
4. Unusual Noises: Strange sounds like banging, clicking, gurgling, or rumbling often indicate internal issues such as sediment buildup, a faulty fan, or a problem with the igniter.
5. Leaks from the Unit: Any visible water leaking from your tankless water heater is a serious concern. Leaks can stem from loose connections, cracked pipes, or even a corroded heat exchanger, requiring immediate attention to prevent water damage.
6. Strange Odors: A sulfur or "rotten egg" smell might indicate bacterial growth in your water supply (though less common with tankless units, it's possible) or an issue with the gas line if it's a gas-powered unit. Burning plastic or electrical smells suggest an electrical malfunction that needs immediate investigation.
7. Unit Cycles On/Off Frequently: If your tankless water heater turns on and off erratically, it might be "short cycling," often due to incorrect sizing, low water flow, or a faulty component like a flame sensor.

Decoding Tankless Water Heater Error Codes & What They Mean

One of the most helpful features of tankless water heaters is their ability to display error codes, providing immediate insight into what might be wrong. While codes vary by manufacturer, understanding common categories can help you communicate the problem effectively to your technician.

1. Ignition/Combustion Issues (e.g., Rinnai Code 11, Noritz Code 12, Rheem Code 10): These codes typically signal a problem with the unit's ability to ignite the burner. Causes often include a faulty igniter, no gas supply, a clogged burner, or issues with the flame sensor detecting a consistent flame.
2. Overheat/Temperature (e.g., Rinnai Code 16, Noritz Code 16): An overheat code means the water temperature inside the unit has exceeded safe limits. This is frequently caused by restricted water flow, significant mineral buildup in the heat exchanger, or a malfunctioning thermostat or thermistor.
3. Water Flow/Pressure (e.g., Noritz Code 29, Navien Code 003): These codes indicate insufficient water flow through the unit. This could be due to clogged water inlets/outlets, a faulty water flow sensor, or genuinely low water pressure in your home.
4. Venting/Air Supply (e.g., Rinnai Code 90, Noritz Code 91): If the unit cannot properly exhaust combustion gases or draw in fresh air, these codes appear. Common culprits include blocked exhaust vents or air intakes, or incorrect venting installation.
5. Scale Buildup: Some advanced units might display a specific code indicating excessive mineral buildup within the heat exchanger, signaling the need for descaling.

Initial Safe Checks You Can Perform:

Before calling a professional, there are a few safe and simple checks you can perform to gather information or potentially resolve a minor issue. Always prioritize your safety, and if you are unsure, do not attempt repairs. Call a professional.

1. Verify Gas and Electrical Supply: Ensure the unit is plugged in (if electric) or that the gas valve is open and there's no general gas outage (if gas-powered). Check your circuit breaker for tripped breakers related to the water heater.
2. Check for Blockages: Inspect the air intake and exhaust vents on the exterior of your home for any obstructions like bird nests, leaves, or debris.
3. Attempt a Unit Reset: Most tankless water heaters have a reset button or require you to turn off the power at the breaker for a few minutes before turning it back on. Consult your owner's manual for specific reset instructions for your model.

If these simple checks don't resolve the issue or if you're uncomfortable performing them, it's time for expert assistance.

Our Expert Tankless Water Heater Repair Process

At Holy City Heating & Air, our approach to Plumbing and tankless water heater repair is thorough and systematic, ensuring an effective and lasting solution.

1. Thorough Diagnostics: Our certified technicians begin with a comprehensive diagnostic process. We utilize the unit's error codes, specialized diagnostic tools, and our extensive experience to pinpoint the exact root cause of the problem, whether it's a simple sensor issue or a more complex component failure.
2. Precision Repair & Component Replacement: Once the issue is identified, we proceed with precise repairs. This often includes:
3. Heat Exchanger Descaling and Flushing: Removing mineral buildup that can restrict flow and heating efficiency, especially common in Folly Beach's coastal water conditions.
4. Replacing Faulty Components: Such as igniters, flame sensors, temperature thermistors, or gas valves.
5. Addressing Water Flow Issues: Repairing or replacing faulty water flow sensors or pressure regulators.
6. Venting System Obstruction Removal or Repair: Ensuring safe and efficient operation of the combustion system.
7. Troubleshooting and Repairing Control Board Issues: Addressing electronic malfunctions that can affect the unit's overall operation.
8. Post-Repair Testing: After the repair, we conduct rigorous testing to ensure your tankless water heater is operating at optimal performance, providing consistent hot water flow and adhering to all safety standards before we complete the job.
   1. Local Folly Beach Expertise: We are not just a service provider; we are part of the Folly Beach community. Our understanding of local water conditions and common appliance issues in coastal environments allows us to provide targeted and effective solutions.
   2. Certified & Continuously Trained Technicians: Our team comprises highly skilled and extensively trained technicians who possess deep expertise in all major tankless water heater brands, including Rinnai, Noritz, Rheem, Bosch, and Navien.
   3. 24/7 Emergency Service: Hot water emergencies don't stick to business hours. That's why we offer Emergency Services around the clock, ensuring you can get help when you need it most, day or night.
   4. Transparent, Upfront Pricing: We believe in honest and clear communication. You'll receive a detailed estimate and understand the full scope of work and associated costs before any repair begins.
   5. Customer Satisfaction Focused: Your comfort and satisfaction are our top priorities. We stand behind our work, and our commitment to excellence is reflected in our many positive Customer Reviews.
   6. Fast, Reliable, and Efficient Service: We work diligently to diagnose and repair your tankless water heater quickly and efficiently, minimizing your downtime without hot water.
   7. Preventative Maintenance Plans: Beyond repairs, we offer comprehensive Maintenance Plan designed to prevent future breakdowns, improve efficiency, and extend the lifespan of your tankless water heater. Regular flushing and inspections are key to avoiding costly repairs.

Why Choose Holy City Heating & Air for Your Folly Beach Tankless Repair?

Choosing the right service provider for your tankless water heater repair in Folly Beach is crucial. Here's why Holy City Heating & Air stands out: