What does LC mean on a Rinnai water heater?
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What does LC mean on a Rinnai water heater?
Error Code 00 or “LC”: Scale build up in heat exchanger. Call a plumber and have them flush the heat exchanger or replace the heat exchanger. Note: A lot of customers ignore this code because it still allows the tankless water heater to continue running.
How do I reset my Rinnai?
MASTER RESET: Rinnai
- Press and hold A and B until P appears ( approximately 10 seconds)
- Press and hold A and B until PLC appears ( approximately 10 seconds)
- The unit will power off.
- Press the power button until the unit powers back up.
How do you unfreeze a Rinnai tankless water heater?
How to Thaw a Frozen Tankless Water Heater
- CLOSE the Gas and Water Shutoff Valves and turn OFF the Electrical Power.
- Allow the tankless unit to thaw.
- Carefully inspect the external pipes, internal components, and the plumbing for leaks.
How do I reset my Rinnai LC code?
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 is a code 10 on a Rinnai?
Rinnai fault code 10 – Air supply or exhaust blockage. Check to see that nothing is blocking the flue inlet exhaust or fan.
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.
Can a tankless water heater freeze up?
Still, the tankless hot water heater can freeze if certain precautions are not taken when the temperatures drop below a certain level. Most indoor and outdoor tankless water heaters have built-in freeze protection against temporary winter temperatures ranging from -5 degrees Fahrenheit to -22 degrees Fahrenheit.
Can hot water tanks freeze?
Can A Hot Water Heater Freeze? Tankless water heaters have built-in ‘freeze protection’ so they are unlikely to freeze as long as you have electricity. Freezing can happen after extended periods of power outage mixed with freezing temperatures.
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. If gas is being supplied to the tankless water heater and the igniter is working, call for an evaluation by a qualified plumber.
What does LC code mean on Rinnai Water Heater?
Check all plumbing internally for leakage. NOTE: The LC code is the only error code that will allow the unit to keep running. The display will alternate between the LC code and the temperature setting. The controller will continue to beep. The LC code will reset if power is turned off and then on.
How to troubleshoot Rinnai hot water now error code?
Troubleshooting tips in RED should be done by your local professionals at Hot Water Now! Schedule Service Call with Hot Water Now! Power Interruption During Bath Fill (Water will not flow when power returns). Turn off all hot water taps. Press ON/OFF twice. Schedule Service Call with Hot Water Now!
What does the error code 00 mean on a Rinnai heat exchanger?
If this does not work, you may need to replace the heat exchanger. Rinnai error code 00 will usually be replaced by LC code, followed by a number between 0 to 9 in the maintenance code history. It can be observed alternating between the current temperature setting and the LC error code, accompanied by a beeping sound.
What does the Rinnai error code 63 mean?
Rinnai error code 63 means there is a problem with the water flow and that it may have dropped below 1.3 GPM. Check if the water is running as normal, check all the filters, ensure there is no air bleeding and no air in the system, check the thermal bypass valve if installed.