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When your Rinnai appliance needs expert attention in Marietta, GA, trust Kennesaw Appliance Repair. With years of hands-on experience, factory training, and professional certifications, their skilled technicians deliver precise, reliable repairs for your premium Rinnai equipment. Don’t settle for less—choose the team known for quality workmanship and dependable service.
Call (770) 215-4158 today to schedule fast, expert repair from Kennesaw Appliance Repair and get your appliance running like new.
Same-day HVAC and appliance repairs to keep your home running smoothly.
Skilled Marietta technicians delivering honest, dependable local service
Trusted repairs and HVAC service for year-round comfort and peace of mind
Fast, reliable repairs and HVAC service when you need them most.
$25 OFF First Time Customers
Double Wall Oven Repair
Buld-in Microwave Repair
Kegerator Repair
Freezer Repair
Stackable Washer and Dryer Repair
Wine Cooler and Cellar Repair
Dryer repair
Oven & Stove repair
Washing Machine repair
Garbage Disposal repair
Refrigerator repair
Dishwasher repair
Water Heater repair
Furnace Repair
Termostat Repair
Air Conditioner Service
Need expert Rinnai water heater repair in Marietta, GA 30068? Our team diagnoses and fixes common and complex issues with tankless and traditional Rinnai units, including ignition failure, temperature fluctuations, error codes, low hot water output, leaks, noisy operation, and mineral buildup. We focus on fast troubleshooting and dependable solutions that help restore efficient hot water to your home.
Our Rinnai water heater service includes detailed inspection of burners, heat exchangers, venting components, gas lines, thermostats, sensors, valves, and electronic controls. By identifying the root cause instead of treating only the symptom, we help improve performance, energy efficiency, and long-term reliability while reducing the risk of repeat breakdowns.
Homeowners in Marietta trust our repair specialists for responsive appointments, clear communication, and quality workmanship on residential water heating systems. We work every day 6 AM - 10 PM, making it easier to schedule service when your unit stops producing consistent hot water or begins showing warning signs that should not be ignored.
We also help prevent future problems with professional maintenance recommendations, descaling support for tankless models, and replacement of worn components when needed. Every completed repair is backed by our warranty, 90 Days Parts and Labor, so you can feel confident in the durability of the service provided.
If your system is underperforming, leaking, or displaying a fault message, call (770) 215-4158 to schedule Rinnai water heater repair in Marietta, GA 30068. Ask about our current offer: $25 OFF First Time Customers.
| Service | Typical Cost Range | Notes |
|---|---|---|
| Diagnostic / Service Call | 80–150 | Often applied toward repair if work is approved |
| Minor Repair | 150–300 | Basic fixes such as sensor reset, igniter cleaning, or small part replacement |
| Flame Rod or Igniter Replacement | 180–350 | Common for ignition or error-code issues |
| Pressure Relief Valve Replacement | 150–325 | Varies by valve type and accessibility |
| Thermistor / Temperature Sensor Replacement | 180–400 | Often needed for inconsistent water temperature |
| Control Board Replacement | 350–700 | Higher-end repair due to part cost |
| Gas Valve Replacement | 300–650 | Pricing depends on model and labor time |
| Blower Motor / Fan Repair | 300–700 | Common in venting or combustion-related failures |
| Heat Exchanger-Related Repair | 500–1,200 | Often expensive enough that replacement may be considered |
| Tankless Descaling / Flush Service | 120–250 | Routine maintenance often recommended annually |
| Venting Repair | 200–600 | Depends on vent material and installation complexity |
| Emergency / After-Hours Surcharge | 75–200 | Usually added on top of diagnostic and repair charges |
Yes. We repair many Rinnai tankless water heater models, including both residential and light commercial units. Our technicians diagnose ignition problems, temperature fluctuations, error codes, leaks, low water pressure, and other common Rinnai system issues.
Common warning signs include inconsistent hot water, no hot water, unusual noises, system shutdowns, visible leaks, error codes on the display, and longer wait times for hot water. If you notice any of these issues in your Marietta home, it is best to schedule service before the problem gets worse.
Same-day service may be available depending on technician scheduling and parts availability. We do our best to provide prompt repair appointments for homeowners and businesses in Marietta, especially when the unit is completely without hot water.
Yes. We troubleshoot and repair many Rinnai error codes by identifying the root cause, which may involve gas supply issues, venting problems, scale buildup, ignition failure, sensor malfunctions, or component wear. After diagnosis, we recommend the most effective repair solution.
That depends on the age of the unit, the cost of the repair, the condition of major components, and how often problems have been occurring. In many cases, a professional repair is the most cost-effective option. If the system is older or has recurring major issues, we can help you decide whether replacement makes more sense.
Yes. Routine maintenance can help reduce breakdowns and extend the life of your Rinnai water heater. Maintenance may include flushing mineral buildup, checking burners, inspecting venting, testing sensors, and confirming safe operation. Regular service is especially important in areas where hard water can affect performance.
Many repairs can be completed in one visit, but the exact time depends on the issue and whether replacement parts are needed. Simple fixes may take a short appointment, while more complex repairs involving internal components can take longer. After inspection, we can give you a clearer estimate.
Yes. We provide Rinnai water heater repair services for homeowners as well as select commercial properties in Marietta, GA 30068. Whether you have a single-unit home system or a larger setup for a business, we can evaluate the problem and recommend the proper repair.
Kennesaw Appliance Repair
4781 Lower Roswell Rd, Marietta, GA 30068