What does priority mean on Rinnai tankless water heater?

What does priority mean on Rinnai tankless water heater?

The Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water. While any hot water is being provided, the temperature setting can only be adjusted between 98º F and 110º F.

What does code 11 mean on a Rinnai tankless water heater?

An error code 11 on a Rinnai tankless water heater can appear due to an issue with the ignitor, gas supply, flame rod, venting, excess moisture, and more. Finding the exact cause is important to apply the right solution and get your water heater running again.

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

If you find you’re not getting the hot water you need, start by lowering the temperature setting on your tankless water heater by a couple of degrees. It’s counterintuitive, but it affects the hot/cold mix ratio and will activate the tankless water heater unit for lower-flow fixtures.

What does code 12 mean on a Rinnai tankless water heater?

a flame failure
If you’re getting Rinnai error code 12 on your hot water unit, it indicates that a flame failure has occurred on the system. In this instance, your hot water unit has not recognised that there is a flame in the burner box.

How do you reset the code 11 on a Rinnai tankless water heater?

Start With Step One To Repair Your Rinnai Tankless Error Code 11

  1. Verify all gas valves on gas system are open feeding the proper gas pressure to said appliance.
  2. Check all air was purged from gas lines after installation.
  3. Verify proper inlet gas pressures are being fed to appliance.

How often should I descale my tankless water heater?

During a regular maintenance visit, a professional will descale, also called delime, your tankless water heater to make sure there’s no buildup around the heating elements. A professional should descale your water heater at least once a year.

How do I clear error codes on Rinnai?

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. This hard reset procedure is not in owners/installation manual or tech sheet.

What does code 14 mean on a Rinnai tankless water heater?

Condensing Tankless Water Heaters Code 14 will be displayed on the controller if the PCB does not see continuity through the thermal fuse circuit (thermal fuse and overheat switch #1) during the start sequence. You will need to attempt to operate the water heater in order for this code to be posted.

How do you clear a Rinnai code?

To temporarily reset the code, press the ON/OFF button 5 times. This will allow the unit to operate for 70 hours after which another LC code will lock the unit from operating.

Why is my heater flashing 11?

Gas Heater error code 11 is flashing on the digital monitor of your unit, or on the status monitor if you have a Gas Heater controller installed, the first thing that you should do is check that your gas supply is turned on at the heater or gas meter.

What’s the lifespan of a tankless water heater?

15 to 20 years
One of the most common questions asked by consumers about tankless water heaters is how long they will last. A tankless water heater can last anywhere from 15 to 20 years with proper maintenance and operation. In comparison, a standard tank water heater normally has a working life of 10 years or less.