Rinnai Tankless Water Heater Repair in the Las Vegas Valley
At Water Heaters Today LLC, we specialize in Rinnai Tankless Repair & Diagnostics. We understand the difference between a fatal failure and a simple maintenance lockout.
Whether it’s an Error Code 11 (Ignition Failure) or an Error Code 12 (Flame Failure), we carry the specific igniters, flame rods, and flush kits to get your system running efficiently again.
Keep Your Home's Rinnai Tankless System in Top Shape
Rinnai is the gold standard for tankless water heating, but even the best engineering cannot ignore Las Vegas water quality. If your Rinnai controller is beeping and flashing an error code, it isn’t broken. It’s telling you exactly what is wrong.
A Rinnai tankless unit is a high-performance machine that requires clean fuel and clean water. In Las Vegas, our hard water creates scale that coats the internal sensors, confusing the computer and causing shutdowns.
Water Heaters Today LLC is your local Rinnai Repair Tech Expert. We know that a “loud rumbling” isn’t a ghost. It’s a dirty combustion fan or a calcified heat exchanger.
We don’t waste time; we clean the inlet water filters, descale the copper or stainless steel heat exchangers, and test the gas manifold pressure to guaranteeing your tankless water heater unit isn’t starving for fuel
Signs Your Rinnai Tankless Unit Needs Repair
Rinnai units communicate through their digital controllers. Don’t guess; look at the screen.
Signs could easily be:
- Error Code 11 (No Ignition): The unit attempts to fire but fails. This is often due to a lack of gas supply or a dirty igniter electrode.
- Error Code 12 (Flame Failure): The unit lights but immediately goes out. This is the #1 sign of a dirty flame rod or venting obstruction.
- Error Code 10 (Air Supply/Exhaust Blockage): The unit is suffocating. This usually means the intake filter is clogged with lint or the exhaust vent is blocked.
- Error Code LC or 00 (Scale Build-up): The unit detects that the heat exchanger is clogged with calcium. You need a flush immediately.
- Cold Water Issues: You get a burst of cold water during a shower. Your flow sensor or internal bypass valve may be sticking.
How We Repair Your Rinnai Tankless Water Heater
Our Rinnai tankless water heater repair process follows the Rinnai technical service protocols.
- Code History Analysis: We enter the “Maintenance Mode” on your controller to see the last 9 error codes, helping us identify intermittent issues.
- Flame Rod Cleaning: We remove and clean the flame rod and igniter with emery cloth to restore a strong electrical signal to the computer.
- Professional Descaling: We circulate a safe descaling solution through the unit for 45-60 minutes to dissolve the “rock” inside your heat exchanger.
- Inlet Filter Service: We pull the tiny screen filter on the cold water inlet (which catches city sediment) and clean it to restore water pressure.
Our Commitment to Quality Rinnai Services
At Water Heaters Today, we believe in extending the life of your investment.
Our team understands that Rinnai units are designed to last 20 years, but only if maintained.
We won’t sell you a new unit if a $200 repair will get you another 5 years out of your current one.
We use OEM Rinnai parts to guarantee compatibility with the complex electronics of the R-Series, Sensei™, and Luxury Series models.
With our expertise, your Rinnai tankless unit in the Las Vegas Valley will run efficient and clean. If your controller is flashing a number, call Water Heaters Today LLC that knows the code.
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?
Error Code 11 stands for “Ignition Failure.” It means the unit is trying to light the gas but can’t. In Las Vegas, this is frequently caused by low gas pressure (undersized lines), a closed gas valve, or a dirty igniter that isn’t sparking strong enough.
Error Code 12 indicates “Flame Failure.” The flame lights but then goes out. This is almost always caused by a dirty flame rod (sensor). Over time, carbon and silica build up on the rod, preventing it from “sensing” the fire. We can clean this rod to fix the issue without replacing parts.
In Las Vegas, with our water hardness exceeding 180 mg/L, Rinnai recommends flushing your unit every 12 months. If your unit displays the “LC” code, it is overdue. Ignoring this will eventually cause the heat exchanger to crack, which is a non-warrantied failure.
This is the classic sign of a clogged Inlet Water Filter. Rinnai units have a small mesh screen where the cold water enters the unit to protect it from debris. If this screen gets plugged with sediment from the city pipes, it chokes the flow. We can clean this in minutes.
We are Rinnai Specialists. We don’t just guess; we use the Rinnai diagnostic manual. While general handymen might be scared of the digital codes, we know that Error 10 usually just means your intake filter is dusty, and Error 11 means we need to check your gas pressure. We carry the flush kits and sensors on our trucks to fix your Rinnai unit in a single trip, ensuring you get back to endless hot water fast.
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.