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If your water heater is connected to MC-91 or MCC-91, you can easily find the most recent error codes. Press and hold the ON/OFF button for two seconds and press the arrow “UP”, the last nine Rinnai error codes will appear and flash one after the other.
similarly, How do I fix my Rinnai Code 14?
An error code 14 indicates that your Rinnai is over heating. The issue could either be the bi-metal safety switch or the thermal fuses. Remove the cover and look for discoloration on the surface of the heat exchanger in the area where the combustion box meets the copper section.
on the other hand, How do I fix error code 11 on Rinnai?
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.
also, How do I fix my Rinnai Code 19? Rinnai error code 19 signifies that there is a problem with the electrical grounding. To fix the Rinnai error code 19, inspect all electrical components of the unit for electrical shorts.
What is code 11 on Rinnai?
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. … Make sure the heat exchanger is not clogged and that low water flow is not causing short cycling.
Why is my Rinnai water heater not working?
Check the water supply and ensure the water flow is at least 30 psi. Check the pump wiring, look for any loose, damaged, or broken connections, and replace if necessary. Drain the water tank and check the water inlet filter for any blockages. If it is clogged, clean it or replace it.
Why is my Rinnai beeping?
Your tankless water heater will “beep” and display an error code to alert you to a problem with the system. Tankless water heaters will alert you with an audible alarm when service is required, a component fails, or a gas or water leak is present.
How do I fix noritz Error 11?
How to Troubleshoot a Noritz Code 11
- Find the gas valve connected to the Noritz water heater and turn the gas valve counterclockwise until it no longer turns to open it completely.
- Turn the power off to the unit by pressing the “Power” button. Run hot water from a nearby faucet. …
- Turn the hot water back off.
How do I fix my Rinnai Code 12?
If you encounter error code 12, you can try the following steps to fix the problem:
- Check gas is turned on at the gas metre or cylinder.
- Check gas is turned on at the water heater.
- Check there are no obstructions to the flue outlet.
What is the priority button on Rinnai?
1. Press the “Priority button” on the temperature controller. 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.
How do I fix my Rinnai Code 25?
Rinnai Error 25 Fix
- Turn off your hot water system.
- Locate your system’s condensate line.
- Inspect the line and remove any blockages.
- Check the condensate trap.
- Turn on your hot water system and see if the error code has gone.
Why does my Rinnai gas heater keep turning off?
The main reasons that a gas water heater automatically shuts off are because the pilot light goes out, the pilot light can’t start, or there are problems with the gas supply. If your gas water heater keeps shutting off, the thermocouple could be dirty, bent or damaged.
How do you test a Rinnai Ignitor?
Igniter issues
Test the unit’s igniter for proper work by cycling the unit and checking if there is a spark. If there is no spark, look for the loose, bad, or no connection and the damaged element. Verify the correct voltage on the electric board when the unit is in the ignition cycle.
How do I reset my Rinnai WIFI module?
How To Factory Reset – Press and hold the Connect button (see below) on the module until the LED blinks WHITE, and then release. The module will reboot and the module LED turns solid RED when complete.
How long does a Rinnai water heater last?
The life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Actual life is impacted by water quality, usage and proper maintenance. For comparison, a tankless water heater lasts about twice as long as a tank water heater, making them a better value in the long run.
Is there a reset button on a tankless water heater?
To prevent accidental resets, tankless water heaters are designed to prevent accidental resets, so you are probably going to have to hold the button down to get the reset to trigger.
How do I stop my Rinnai from beeping?
You may easily reset the electric reset button by pressing the red button. Some unit comes with the lower thermostat reset button. In this situation, you need to push the reset button too. When you push the buttons, but they don’t reset instantly, some parts of the water heater may cause the problem.
Why is my Rinnai beeping 12?
If you’re getting Rinnai error code 12 on your hot water unit, it indicates that a flame failure has occurred on the system. … Incorrect gas pressure supply your hot water unit. Loose gas connections and fittings. Incorrect venting material installed for your specific unit.
How do you test a Rinnai Ignitor?
Igniter issues
Test the unit’s igniter for proper work by cycling the unit and checking if there is a spark. If there is no spark, look for the loose, bad, or no connection and the damaged element. Verify the correct voltage on the electric board when the unit is in the ignition cycle.
Why is my Rinnai beeping 11?
Rinnai error code 11 is an indication that there is no ignition in, or no gas supply to your hot water system. … Check your hot water system for any visible damage or loose parts. Locate your gas supply and ensure it is turned on. Test your gas supply by turning on a gas appliance, such as a stove-top.
How do I fix Noritz Error Code 45?
To fix error code 45, you may need to have a licensed contractor assess the condition of your Noritz tankless water heater. If there are no visible signs of water or moisture, reset the unit by switching it off for at least 30 seconds. If the error code shows again after the reset, you will have to call for service.
How do I stop my Rinnai from beeping?
Low Fuel. Some propane-fueled water heaters emit a beep when they are low on fuel. How to Fix: Flush the heat exchanger as per the recommended flushing procedure found in the owner’s manual. To temporarily reset the code, press the ON/OFF button 5 times.
What is code 12 on Rinnai heater?
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. … Incorrect gas pressure supply your hot water unit. Loose gas connections and fittings.
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