Rinnai error code 11 is an indication that there is no ignition in, or no gas supply to, your hot water system. You can try the following to fix the problem: Check your hot water system for any visible damage or loose parts. Test your gas supply by turning on a gas appliance, such as a stove-top.

Then, What does LC mean on a Rinnai water heater?

Error Code 00 or β€œLC”: Scale build up in heat exchanger.

Note: A lot of customers ignore this code because it still allows the tankless water heater to continue running. You will see the display alternates between the LC code and the temperature setting.

Considering this, How do you check the flow rate of a Rinnai tankless water heater? Check if the tankless is producing a water flow using the temperature controller by pressing the “UP” button for 3 seconds and then the “ON/OFF” button. The number displayed will be your flow rate. (ie. 7 = 0.7 gpm, 25 = 2.5 gpm).


26 Related Questions and Answers Found πŸ’¬

 

What is a code 11 on a Rinnai tankless water heater?

Rinnai hot water fault code 11 is indicating no ignition or no gas supply on your continuous flow hot water system. You can check if your gas supply is working as it should be by turning your gas stove on and then turning a hot water tap on.

Why is my Rinnai beeping?

A water heater may sound a beep to warn that there is a water leak. Beeping may also signal a gas leak. Low Fuel. Some propane-fueled water heaters emit a beep when they are low on fuel.

What is the priority button on Rinnai?

Press the β€œPriority button” on the temperature controller. The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water.

How do you clear the LC code on Rinnai?

After temporarily reset, controller will cycle between set temperature and LC#. After flushing water heater, the procedure to reset LC codes: Push the two switches (A and B) on PC Board at the same time for five seconds. Water heater will return to normal operation and LC# count returns to 0.

How does a Rinnai water heater work?

When the need for hot water arises by turning on a shower, washing machine, dishwasher or faucet, cold water flows into the Rinnai Tankless Water Heater from the inlet pipe at the bottom of the heater. The flame is ignited and heats the two heat exchangers that are included in the Super High Efficiency models.

How do I fix my Rinnai Code 25?

Error Code 25

Open the cabinet and check that the condensate tank and trap are not blocked. Check that the air gap between the condensate drain line and the unit has been maintained. Inspect the sensor wiring harness. Look for loose, damaged or broken connections between the PC board and the sensor.

How do I reset my Rheem water heater?

Turn the water heater’s gas valve switch to the “OFF” position, wait for a few seconds and then flip the switch to the “ON” position to reset the system.

A Rinnai fault code 10 is an indication of either an issue with the air intake or a blocked flue.

Why am I not getting hot water from my tankless water heater?

Because tankless units only heat water as it’s needed, running too many hot water appliances at the same time could mean the unit just can‘t keep up. On the other hand, your β€œno hot water” problem could be cause by a bigger issue such as: Plugged heat exchanger (due to hard water) A blocked vent/air intake.

How long does a Rinnai water heater last?

20 years

Are Rinnai tankless water heaters good?

High efficiency

There are many benefits for the owner of a Rinnai tankless water heater; reliability, on demand and almost instant and endless hot water supply, up to 40% energy savings, and high energy efficiency that ranges from 82% to over 90%.

Are Rinnai tankless water heaters good?

Pros: This is often considered the best Rinnai tankless water heater for these reasons: It is very efficient, using up to 96% of the fuel used to create heat. It has a built-in 360 ThermaCirc recirculation pump that keeps hot water in the water line near the tap or shower, so you don’t have to wait for hot water.

What does priority mean on Rinnai tankless water heater?

How do I reset my Rinnai?

Turn off all hot water faucets/taps. Press On/Off button twice. Turn hot water back on and test. You may have to try this a couple times to reset the system.

Check for clogs or obstructions in the following:

  1. Combustion chamber.
  2. Exhaust piping.
  3. Heat exchanger.

How do you vent a Rinnai tankless water heater?

Tankless water heaters can vent through the roof or a side wall, creating more flexibility and options for placement. Traditional gas tank water heater require venting through the roof. Tankless water heaters use fans to blow exhaust from the unit horizontally, allowing vents to terminate on the side of a house.

Why does my tankless water heater go cold?

Another problem that tankless water heaters can run into is that of a cold water sandwichβ€”a plumbing term given to sudden temperature fluctuations, when your tankless water heater produces hot and cold water intermittently. This can be caused by: A dirty water filter on the cold water inlet.

How do you troubleshoot a tankless water heater?

How to Maintain Your Tankless Water Heater
  1. Turn off the water inlet and outlet valves on the water heater.
  2. Flip the circuit breaker to off or shut off the gas to the heater.
  3. Find the tab for the pressure-relief valve.
  4. Pour the vinegar into the 5-gallon bucket.
  5. Place the submersible pump in the bottom of the bucket.

Why is my tankless water heater not getting hot?

There are several reasons your water heater could fail to ignite. Often, this issue is caused by the gas supply, so check to make sure your propane tank is full before you do anything else. If your gas valve or water valves are not fully opened, this could also cause the ignition to fail.

Is there a reset button on a Rinnai tankless water heater?

When trying to connect or disconnect power to the tankless water heater, Rinnai recommends using the water heater power plug instead of using the Reset feature on the module. If you are ever required to use the Reset feature on the module, insert a small pin into the Reset opening (see below).

Turn the water heater’s gas valve switch to the “OFF” position, wait for a few seconds and then flip the switch to the “ON” position to reset the system.

How long does a Noritz tankless water heater last?

Do I need to service my Rinnai gas heater?

Manufacturers typically recommend that gas heater maintenance and hot water service of their gas appliances be serviced every one or two years. For example, both Rinnai and Bosch generally recommend 2 year and hot water service intervals while Rheem and Paloma recommend annual servicing.

How do I fix my Rinnai Code 11?

Rinnai fault code 11 – No ignition. Check to make sure the gas is turned on at the water heater, gas meter or tank. Ensure the igniter is operational. If gas is being supplied to the tankless water heater and the igniter is working, call for an evaluation by a qualified plumber.

How do I fix my Rinnai Code 11?

Why does my Rinnai water heater beep?

A water heater may sound a beep to warn that there is a water leak. Beeping may also signal a gas leak. Low Fuel. Some propane-fueled water heaters emit a beep when they are low on fuel.

How does a Rinnai water heater work?

When the need for hot water arises by turning on a shower, washing machine, dishwasher or faucet, cold water flows into the Rinnai Tankless Water Heater from the inlet pipe at the bottom of the heater. The flame is ignited and heats the two heat exchangers that are included in the Super High Efficiency models.

What does code 90 mean?

A 90 error code indicates a combustion abnormality. This means that the mixture of fuel and air is off from specification and is resulting in poor quality combustion. Common issues associated with a 90 error code: 1) Insufficient gas supply. 2) Blockage in the flue vent.

How do I fix noritz Error Code 66?