How do you get a Rinnai code?
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.
What is a code 10 on a Rinnai tankless water heater?
Rinnai fault code 10 – Air supply or exhaust blockage. Check to see that nothing is blocking the flue inlet exhaust or fan. Rinnai fault code 11 – No ignition. Check to make sure the gas is turned on at the water heater, gas meter or tank.
How do you reset the LC code on a Rinnai tankless water heater?
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.
How to fix error code 10 on Rinnai?
A Rinnai fault code 10 is an indication of either an issue with the air intake or a blocked flue. Your first step should always be turning your system on and off to see if the Rinnai fault code 10 has disappeared. If it hasn’t, check the vent system for blockages and other issues that could prevent airflow.
What does code 63 mean on a Rinnai?
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.
How to troubleshoot a Rinnai tankless water heater?
Troubleshooting your Rinnai tankless water heater is often a matter of reading the error code the unit provides when a hot water issue comes up and performing basic troubleshooting steps for that error code. Need to Hire a Plumber? Get a free estimate online from top local home service pros in your area.
What does error code 49 on Rinnai Water Heater mean?
Rinnai error code 49 can be found on some Rinnai tankless water heater models like the RHFE 1004. The error code 49 means there is a problem with the pressure sensor. Check for loose connections and damaged or broken parts. Clean and remove any build-ups or obstructions.
What to do if your Rinnai says error code 02?
The Rinnai error code 02 cannot be fixed by the user, and the only solution is to make a service call and have a certified technician inspect your Rinnai. If you live in an area with routine freezing winter temperatures, we’ve put together the article Maintaining Tankless Water Heaters in Freezing Temperatures.
What’s the Rinnai code for the heat exchanger?
To fix this error code, you need to flush the 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.
Troubleshooting your Rinnai tankless water heater is often a matter of reading the error code the unit provides when a hot water issue comes up and performing basic troubleshooting steps for that error code. Need to Hire a Plumber? Get a free estimate online from top local home service pros in your area.
Rinnai error code 49 can be found on some Rinnai tankless water heater models like the RHFE 1004. The error code 49 means there is a problem with the pressure sensor. Check for loose connections and damaged or broken parts. Clean and remove any build-ups or obstructions.
The Rinnai error code 02 cannot be fixed by the user, and the only solution is to make a service call and have a certified technician inspect your Rinnai. If you live in an area with routine freezing winter temperatures, we’ve put together the article Maintaining Tankless Water Heaters in Freezing Temperatures.
To fix this error code, you need to flush the 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.
