Fast Tankless Water Heater Repair in Huntsville, AL
A tankless water heater provides energy efficiency and continuous hot water, but when it stops working, it can quickly disrupt your daily routine. At Dean Plumbing and Gas Piping, we specialize in tankless water heater repair in Huntsville, AL, and surrounding areas, ensuring your system is back up and running in no time. Whether you’re dealing with fluctuating water temperatures, an error code, or no hot water at all, our experienced technicians have the expertise to diagnose and fix the problem efficiently. Call us at (256) 883-6130 to learn more.
Why Trust Dean Plumbing and Gas Piping?
When your tankless water heater malfunctions, you need a skilled and dependable plumbing team. Dean Plumbing and Gas Piping is dedicated to delivering top-quality service, ensuring your system runs efficiently for years to come. We use advanced diagnostic tools to pinpoint issues quickly and provide honest recommendations to keep your unit in peak condition. Our team is committed to transparency, professionalism, and high-quality workmanship, making us the trusted choice for homeowners and businesses alike.
Expert Solutions for Tankless Water Heater Issues
Tankless water heaters are complex systems that require specialized repair techniques. Our skilled plumbers have experience with all major brands and models, providing thorough diagnostics and long-lasting solutions.
Common tankless water heater issues we fix include:
- No Hot Water – Diagnosing and repairing ignition failure, gas supply issues, or electrical malfunctions.
- Fluctuating Water Temperature – Addressing mineral buildup, sensor failures, or improper gas flow.
- Error Codes & System Lockouts – Troubleshooting manufacturer-specific error messages for a quick resolution.
- Low Water Pressure – Cleaning clogged filters and ensuring proper water flow.
- Strange Noises – Identifying and eliminating scale buildup or burner issues.
- Gas & Water Leaks – Detecting and fixing leaks to ensure safe operation.
- Routine Maintenance & Descaling – Preventing future breakdowns by flushing and maintaining the system.
No matter the problem, our expert team is equipped with the tools and knowledge to get your tankless water heater running efficiently again. We also offer tankless water heater installation when needed, along with standard water heater installation.
Get Your Hot Water Flowing Again
Don’t let water heater troubles disrupt your day. Contact Dean Plumbing and Gas Piping for professional tankless water heater repair in Huntsville, AL, and surrounding areas. Our expert technicians are ready to diagnose and repair your system quickly and effectively. Call us now at (256) 883-6130 to schedule an appointment and enjoy the benefits of a fully functional tankless water heater.
Most Recent Pins (38)
Alek Wissinger
Dean Plumbing and Gas Piping completed descaling on two attic-mounted tankless water heaters in Huntsville, Alabama. Technicians flushed the heat exchangers in both a Bosch and a Rheem unit. They confirmed normal operation after removing all descale solution. System testing showed both units functioned properly.
Alek Wissinger
A technician in Huntsville, Alabama descaled a Rinnai tankless water heater in the garage. The unit showed an SS error code. The technician contacted tech support, reset the system, and restored proper function. All components were tested after service.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly descale of a tankless water heater in Huntsville, Alabama. The team flushed mineral buildup, purged the system, and confirmed proper operation. No leaks or issues were found during testing after service.
Rusty Davis
Dean Plumbing and Gas Piping serviced three Navien heaters in Huntsville, Alabama. Technicians replaced flame rod assemblies and rubber seals to prevent leaks. Two units functioned normally, while the third showed an ignition failure. A second technician will perform further testing using a manometer, as required by Navien for warranty verification.
Daniel Mahan
Dean Plumbing and Gas Piping replaced a bypass valve on the first heater in a maintenance room. The team supplied all necessary materials. This service took place in Huntsville, Alabama.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly descale on an exterior Navien tankless water heater in Madison, Alabama. The technician flushed the system, confirmed proper operation, and verified there were no active leaks. A visual inspection showed no issues, and testing confirmed the unit was functioning normally.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly tankless water heater descale and replaced a toilet flush lever in the hall bathroom in Huntsville, Alabama. The descale cleared buildup as expected. All components were tested, showing no leaks. The company supplied all materials and provides a 90-day work guarantee.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly descale of a Noritz tankless water heater in a garage in Huntsville, Alabama. The process removed extensive buildup, shown by the dark color of the flushed solution. All materials were supplied, and the unit tested leak-free and fully functional at completion.
Rusty Davis
Dean Plumbing and Gas Piping completed a tankless water heater descaling and repaired a leaking copper-to-CPVC drain connection in Huntsville, Alabama. The team removed a faulty shark bite fitting and replaced it with new materials. All work was tested with no leaks at completion and includes a one-year service guarantee.
Rusty Davis
Dean Plumbing and Gas Piping replaced a warranty-covered heat exchanger and control panel on a Navien water heater in Huntsville, Alabama. The technician updated the vent system using 2-inch PVC through the roof and completed a yearly descaling service. Parts were supplied by the manufacturer, and the customer is scheduled for annual maintenance.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly descale of an exterior tankless Rinnai water heater in Huntsville, Alabama. The technician replaced a defective service valve and T&P valve before restoring system pressure and completing the descale. All materials were provided, and the system tested with no leaks. Work includes a 90-day service guarantee.
Rusty Davis
Dean Plumbing and Gas Piping completed an annual descale service on an exterior tankless Rinnai water heater in Huntsville, Alabama. The team replaced faulty service and T&P valves, reconnected to existing PEX and CPVC lines, and flushed the system. All materials were provided, and the system tested with no leaks following the maintenance.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly descale of an exterior tankless water heater near a garage in Huntsville, Alabama. Technicians cleared the unit’s screens and confirmed the heat exchanger and internal parts were in good condition. Regular maintenance helps maintain performance and reduce buildup.
Rusty Davis
A technician in Huntsville, Alabama inspected a Navien water heater showing 003 and 598 error codes. The technician found water and buildup near the heat exchanger. The team contacted Navien and arranged for delivery of replacement parts to resolve the issue.
Alek Wissinger
A technician in Huntsville, Alabama diagnosed a Rinnai tankless water heater with error code 12. They confirmed low gas pressure, found a failing regulator and two gas leaks, and replaced the damaged parts. The system was purged and tested successfully. The service included a 90-day installation warranty.
Rusty Davis
Dean Plumbing and Gas Piping replaced a damaged service valve kit on a Rinnai tankless water heater in Huntsville, Alabama. They installed new service and T&P valves, connected to existing ¾” PEX and CPVC lines, rewrapped with heat trace, and tested the system. The water heater worked properly with no leaks after completion.
Rusty Davis
A technician in Huntsville, Alabama replaced a faulty heat exchanger, flow sensor, check valve, and washers under warranty. After resolving an overflow issue, the system was retested and confirmed to be heating water correctly. The technician also performed a yearly descaling on neglected components and added the customer to an annual maintenance schedule.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly descale on a Rinnai tankless water heater in a basement. All materials were supplied, and final testing showed no leaks or issues. The service includes a 90-day work guarantee. This project took place in Huntsville, Alabama.
Alek Wissinger
Dean Plumbing and Gas Piping replaced a leaking Navien NPE-240A2 tankless water heater in a crawl space in Albertville, Alabama. They installed a warranty-covered unit, reconnected existing water and gas lines, purged air, and adjusted settings. A leaking TracPipe gas line section was replaced with a new connector and fittings. All systems passed testing.
Alek Wissinger
Dean Plumbing and Gas Piping corrected installation settings on a Rinnai tankless water heater in Huntsville, Alabama. The team identified the flashing flame symbol issue, confirmed improper parameter setup with the manufacturer, adjusted the settings, and restored normal heater operation without additional problems.
Alek Wissinger
DEAN Plumbing and Gas Piping completed a descale service on a Navien tankless water heater in Albertville, Alabama. The team cleaned the air inlet and cold water inlet screens. They found no performance issues during or after the service. All system checks passed at completion.
Daniel Mahan
A technician descaled a Rinnai tankless water heater in New Market, Alabama. This service removed mineral buildup to help maintain water flow and improve heating efficiency. Tankless water heater descaling supports consistent operation and extends equipment lifespan.
Ty Troupe
Alek Wissinger
DEAN Plumbing and Gas Piping completed a descale service on a Rinnai tankless water heater in Huntsville, Alabama. The team cleaned the inlet screen, ran a descaling solution through the heat exchanger, and inspected internal parts. The unit passed all tests after service with no issues found during or after the work.
Rusty Davis
DEAN Plumbing and Gas Piping replaced a faulty heat exchanger under manufacturer warranty in Huntsville, Alabama. Technicians removed and reinstalled components, replaced worn O-rings, and rebooted tankless units in cascade mode to restore hot water with minimal downtime. All parts were provided by the manufacturer and tested leak-free after service.
Alek Wissinger
Dean Plumbing and Gas Piping completed a descaling service on a Rinnai tankless water heater in Huntsville, Alabama. The technician flushed the unit with descaling solution for one hour and cleaned the inlet filter. The system showed no issues during or after the procedure, confirming normal operation.
Rusty Davis
Dean Plumbing and Gas Piping performed a yearly descaling of a Rinnai tankless water heater recessed in a utility room wall. The unit, approximately 10 years old, showed no signs of active leaks during testing. Service was completed in Huntsville, Alabama.
Rusty Davis
Dean Plumbing and Gas Piping completed a yearly descale on a Navien tankless water heater in a walk-in basement in Huntsville, Alabama. The team flushed the system thoroughly, with no leaks found during inspection. Regular maintenance helps extend system life and maintain performance. Existing plumbing was not covered under service warranty.
Ty Troupe
Rusty Davis
Dean Plumbing and Gas Piping flushed and descaled two outdoor Rinnai tankless water heaters and replaced hot-cold cartridges, seats, and springs in a bathroom faucet. The job addressed heavy mineral buildup and ensured leak-free operation. All services were completed in Huntsville, Alabama.
Alek Wissinger
Dean Plumbing and Gas Piping performed a descale service on a Rinnai tankless water heater in an attic space in Huntsville, AL. The water inlet screen was cleaned, and the unit was flushed to prevent solution buildup. An in-house filter in the attic was also replaced at no extra charge.
Rusty Davis
Dean Plumbing and Gas Piping replaced a defective check valve in a Navien 240a water heater in Huntsville, AL. They also replaced a damaged CPVC line with PEX and secured it to prevent further wear. A leaking tee was replaced, and all connections were tested to ensure proper function with no active leaks.
Rusty Davis
A technician restored hot water by turning on the breaker, gas, and hot water line in Huntsville, AL. The water heater was tested and functioned properly. If error codes appear within a few days, diagnostics with Rheem will be covered under the invoice. This service was performed after hours.
Alek Wissinger
Dean Plumbing and Gas Piping performed a descale service on a Rinnai tankless water heater in Huntsville, AL. The technician inspected the unit and found no internal issues. After investigating low hot water volume, a clogged sediment filter on the cold water line was identified as the cause. A filter replacement is scheduled.
Rusty Davis
A technician replaced and reinstalled Rinnai warranty-supplied parts, including a heat exchanger, gaskets, washers, and an ignition system, in Huntsville, AL. The system was tested with high water flow to ensure proper function. A follow-up visit is scheduled to adjust the condensation line with the necessary materials.
Rusty Davis
Dean Plumbing and Gas Piping completed a descale service on a Rinnai tankless water heater in a garage in Huntsville, AL. The system was flushed with a manufacturer-approved solution and restored to full operation. Final testing confirmed normal function with no leaks.
Rusty Davis
A technician diagnosed a Rinnai water heater issue in Huntsville, AL. After running diagnostics, they identified a defective part. A new heat exchanger will be shipped next week to complete the repair.
Alek Wissinger
Dean Plumbing and Gas Piping completed a descale service for a Rinnai tankless water heater in Huntsville, AL. The technician connected a descale kit, ran the solution for an hour, cleaned the inlet filter and exhaust screen, and flushed the unit. The system was tested, and the hot water supply was restored successfully.
Most Recent Reviews (1)
May 30, 2025
Your service was very good. Alex came at the expected time, did what he was there to do, seemed knowledgeable about Navien water heaters, and is always polite and well spoken. He is on time, and does a good job, and is a pleasure to deal with and be around. What else does anyone want?
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