Rheem Water Heater Repair

At Water Heaters Today LLC, Rheem Water Heater Repair in the Las Vegas Valley is a core services. Whether it’s a 7-Flash error on a gas valve or a Code 11 on a tankless unit, we carry the specific diagnostic tools and parts to get your hot water back on today. 

Rheem units use specific “Guardian System” technology that general plumbers often misdiagnose. There is no guessing with Water Heaters Today LLC!

Keep Your Home's Rheem Water Heater Running Properly

Rheem water heaters are workhorses, but in Las Vegas, they face a unique enemy: dust and hard water. 

A common issue with Rheem units isn’t the heater itself, but the air intake system getting clogged, causing the safety system to trip. Water Heaters Today LLC, your local Rheem Specialist in the Las Vegas Valley, knows exactly how to clean and reset these systems. 

From diagnosing Honeywell/Resideo gas valves to descaling Rheem Tankless heat exchangers. We don’t waste time; we identify if your unit needs a simple cleaning, a new part, or if the tank has reached the end of its life. We get your water heater repaired, and your home back to normal as soon as possible.

Rheem water heater installation being done by Water Heaters Today LLC in Las Vegas

Signs Your Rheem Water Heater Needs Repair

Rheem units are “smart” because they will usually tell you what is wrong via the LED status light on the gas control valve. Before you call, look at the blinking light.

Signs could easily be:

  • “7 Red Flashes” (Gas Control Failure): This is the most common fault on Rheem residential gas units. It usually indicates the gas control valve has failed and needs replacement.
  • Pilot Light Won’t Stay Lit: On Rheem units, this is often caused by a dirty air intake screen or a tripped TRD (Thermal Release Device), not just a bad thermocouple.
  • Error Code 11 (Tankless): ignition failure. The unit tries to light but fails, often due to gas pressure issues or dirty igniters.
  • Error Code 12 (Tankless): Flame failure. The unit lights but goes out immediately (common with scale buildup).
  • Sizzling Sounds: Condensation is dripping onto the burner, often a sign of a tank leak or venting issue.
  • Blue Light Not Blinking: If the “Heartbeat” light is off, the pilot is out or the thermal switch has tripped.
Water Heater Services with Water Heaters Today in Las Vegas

How We Repair Your Rheem Water Heater

Our repair process begins with reading the Intelligent Control Logic of your unit. 

We don’t just throw parts at the problem. 

Our water heater specialists test the thermopile voltage, inspect the TRD glass vial (a specific Rheem safety feature), and clean the flame arrestor screen

We guarantee the repair is done safely and efficiently. If your unit is under warranty, we can often facilitate the part exchange. 

After completing the repair, we test the unit through a full heating cycle to guarantee the Guardian System or any other Rheem water heater you have is venting properly and the water temperature is stable.

Our Commitment to Quality Rheem Water Heater Services

At Water Heaters Today, we are dedicated to providing honest repair solutions. 

We know the difference between a simple sensor cleaning and a terminal tank failure. 

Our team understands that for many Rheem “Performance” series units sold at retail, the cost of a gas valve replacement might be 50% of the cost of a new unit. 

We will always do the math for you. We use only OEM Rheem parts to guarantee your rheem water heater operates as designed. 

With our expertise, your Rheem water heater in the Las Vegas Valley will continue to meet your family’s hot water needs. 

If you notice a blinking red light or a cold shower, don’t hesitate to contact us for expert diagnostic services.

Have Any Questions?

Seven red flashes followed by a pause indicates a “Gas Control or Valve Failure.” This is a specific lockout mode. Sometimes it can be reset by cycling the power/pilot, but often it indicates the electronic brain of the valve has failed and requires replacement.

On Rheem units, it is often not the thermocouple. It is frequently a clogged air intake screen at the bottom of the unit. The “Guardian System” starves the flame of oxygen if the screen is dirty, causing the pilot to suffocate. We can clean this and reset the system.
If the leak is coming from a fitting, valve, or the expansion tank, yes. If the leak is coming from the body of the tank itself (the steel cylinder), no. That is a structural failure requiring replacement.
Yes. We specialize in flushing (descaling) Rheem tankless units to remove the hard water buildup that causes Error Code 12 (Flame Failure). We also troubleshoot flow sensors and ignition packs.

We are the “Rheem Whisperers” of Las Vegas. While other plumbers might tell you to buy a new unit because they don’t understand the Thermal Release Device (TRD) or the blinking error codes, we know exactly how to diagnose these specific systems.

We carry the correct pilot assemblies and gas valves on our trucks to fix your Rheem unit in one trip, saving you money and downtime.

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.