Rheem Tankless Water Heater Repair in the Las Vegas Valley
At Water Heaters Today LLC, we specialize in Rheem Tankless Repair & Maintenance. We carry the digital manometers to check your gas pressure and the flushing kits to dissolve the minerals clogging your heat exchanger. Whether it’s a Code 11 or a cold shower, we get it fixed right. (702) 305-8750
Keep Your Home's Rheem Tankless System in Top Shape
A Rheem tankless water heater is a high-performance machine, but in Las Vegas, it has two mortal enemies: scale buildup and gas pressure fluctuations. When your unit throws an error code and shuts down, you don’t need a plumber who guesses; you need a technician who speaks “tankless.”
Tankless units don’t store water, but they do store calcium. In Las Vegas, our hard water creates a layer of rock inside your heat exchanger that suffocates the unit, causing it to overheat and shut down.
Water Heaters Today LLC is your local expert for reviving these systems. We don’t just swap parts; we perform the deep cleaning that Rheem manuals mandate but most homeowners overlook. From cleaning the inlet water filter (a common hidden cause of low flow) to replacing igniter rods, we handle the precise mechanics that keep your endless hot water actually endless.
Signs Your Rheem Tankless Unit Needs Repair
Rheem tankless units use a digital display to scream for help. Don’t ignore the code.
Signs could easily be:
- Error Code 11 (Ignition Failure): The unit tries to light but fails. This is often due to low gas pressure, a dirty igniter, or a blocked intake vent.
- Error Code 12 (Flame Failure): The unit lights but goes out immediately. This is the #1 sign of scale buildup on the flame sensor or heat exchanger.
- Error Code 29 (Heat Exchanger Outlet Temp): Your unit is clogged with sediment and cannot transfer heat efficiently. It needs a flush immediately.
- Reduced Water Flow: If your shower pressure is weak but only on hot, your Inlet Water Filter is likely packed with debris.
- “Cold Water Sandwich”: You get hot water, then a burst of cold, then hot again. Your flow sensor or recirculation pump may be failing.
How We Repair Your Rheem Tankless Water Heater
Our repair process is scientific. We diagnose the computer, not just the plumbing.
- Digital Diagnostics: We read the error history to see if the unit has been short-cycling or overheating.
- System Descaling: If you have Code 12, we perform a full vinegar flush using your isolation valves to dissolve the rock inside the unit.
- Component Cleaning: We clean the flame rod (sensor) and spark electrode with emery cloth to restore a strong ignition signal.
- Filter Check: We pull and clean the inlet screen—a 5-minute fix that often solves “low pressure” issues.
Our Commitment to Quality Rheem Tankless Services
At Water Heaters Today, we will never sell you a repair if the machine is dead. Tankless heat exchangers have a lifespan. If yours is leaking internally or so calcified that flushing won’t clear it, we will recommend replacement rather than wasting your money on parts.
We use OEM Rheem parts to ensure compatibility with the complex electronics of the Performance Platinum™ and Prestige® series.
With our expertise, your Rheem tankless unit in the Las Vegas Valley will run efficient and clean. If your remote is flashing a code, call the team that knows what it means.
No Matter the Water Heater Service, Water Heater Today Has Your Back in the Las Vegas Area. Give Us a Call at (702) 305-8750
Have Any Questions?
Code 11 means “Ignition Failure.” Your water heater has gas, air, and spark, but it isn’t lighting. In Las Vegas, this is frequently caused by low gas pressure (undersized gas lines) or a dirty igniter rod. We can test your gas pressure and clean the ignition assembly to fix this.
Code 12 means “Flame Failure.” The unit lights for a second and then dies. This is almost always caused by a dirty flame sensor (carbon buildup) or scale buildup in the heat exchanger that causes the unit to overheat instantly. A thorough cleaning and descaling usually solves this.
In Las Vegas, with our extreme water hardness (>180 mg/L), you must flush your tankless unit once a year. If you skip this, scale builds up on the heat exchanger, acting like insulation. The metal gets superheated and eventually cracks, destroying the unit.
This is the classic sign of a clogged Inlet Water Filter. There is a tiny screen where the cold water enters your Rheem unit to catch debris. If it gets plugged with sediment from the city water lines, it chokes the flow. We can clean this in minutes.
We understand that a tankless water heater is a machine that requires maintenance, not just a tank that sits there. While other plumbers might tell you a Code 12 means you need a new unit, we know it usually just needs a professional Descaling Flush. We carry the pumps, hoses, and solutions to dissolve the Las Vegas minerals choking your system, saving you thousands on premature replacement.
Why Choose Us?
What Make's Water Heaters Today LLC Your Top Choice for Water Heater Services in Las Vegas?
Call today for a free estimate on any of our water heater services.