Timothy GinnRheem Error Code 12 indicates a flame loss during operation. To fix this issue, you can try to clean or replace the flame rods, check for spark, and inspect the igniter.
Rheem Error Code 12 is a common problem that homeowners may encounter with their Rheem tankless water heaters. This error code indicates a flame loss during operation, which can result in a lack of hot water. However, there are steps you can take to address this issue and restore the functionality of your water heater.
We will discuss the causes of Error Code 12 and provide you with solutions to fix the problem. By following these troubleshooting steps, you can resolve the flame loss issue and ensure a consistent supply of hot water in your home.
Table of Contents
Overview Of Rheem Error Code 12
When it comes to troubleshooting a Rheem water heater, one common error code that users may encounter is Error Code 12. This error code indicates a flame failure and can prevent the water heater from operating efficiently. In this section, we will define and explain the meaning of Rheem Error Code 12, discuss the common symptoms associated with it, and highlight the importance of troubleshooting and fixing this error.
Definition and meaning of Rheem Error Code 12
Rheem Error Code 12 specifically refers to a flame failure. It occurs when the water heater’s ignition attempts are unsuccessful, leading to the shutdown of the heater system. This error is usually accompanied by the water heater’s safety system triggering and preventing further operation. The cause of the flame failure can vary, but it is often related to issues with the ignition system, gas supply, or combustion chamber.
Common symptoms associated with error code 12
When a Rheem water heater displays Error Code 12, there are several symptoms that users may notice:
- Flame failure: The water heater fails to ignite or maintain a stable flame.
- No hot water: As a result of the flame failure, users may experience a lack of hot water.
- LED indicator: The water heater’s display or LED indicator may show Error Code 12.
- Automatic shutdown: The water heater’s safety system may automatically shut down the unit to prevent any further operation.
Importance of troubleshooting and fixing error code 12
It is crucial to address Rheem Error Code 12 promptly to ensure the proper functioning of the water heater and to avoid any inconvenience caused by a lack of hot water. Ignoring this error can lead to prolonged periods without hot water, increased energy consumption, and potential damage to the water heater system. Troubleshooting and fixing Error Code 12 involves identifying the root cause of the flame failure and taking appropriate actions, such as inspecting the ignition system, checking the gas supply, and cleaning the combustion chamber.
By resolving Error Code 12, users can restore their water heater’s efficient operation and enjoy a continuous supply of hot water without any interruptions.
Troubleshooting Rheem Error Code 12
If you’re experiencing Error Code 12 on your Rheem water heater, don’t worry. This error is typically related to the ignition process and can be resolved with a few troubleshooting steps. In this guide, we will walk you through the process of troubleshooting Error Code 12, so you can get your water heater up and running again.
Step-by-step guide to troubleshooting error code 12
Follow these steps to troubleshoot Rheem Error Code 12:
| Step | Action |
| 1 | Checking the sight glass window |
| 2 | Checking for spark |
| 3 | Conducting an external spark test |
| 4 | Testing AC volts to the coil |
| 5 | Replacing the igniter |
| 6 | Testing gas valve resistance |
| 7 | Checking DC voltage |
Checking the sight glass window
To begin troubleshooting, start by checking the sight glass window. This window allows you to observe the status of the ignition process. If you see any abnormalities, such as a weak or no flame, it may indicate an issue with the ignition system.
Checking for spark
Next, check for spark. A lack of spark during the ignition process can cause Error Code 12. Inspect the spark electrode for any signs of damage or wear. Clean the electrode and ensure it is properly aligned with the burner assembly.
Conducting an external spark test
If you’re still experiencing Error Code 12 after checking the spark electrode, conduct an external spark test. This test will help determine if the issue lies within the ignition system or elsewhere. Follow the manufacturer’s instructions to perform the test accurately.
Testing AC volts to the coil
Measure the AC volts to the coil using a multimeter. This will help determine if the coil is receiving the appropriate amount of power. If the voltage is significantly lower than the specified range, the coil may need to be replaced.
Replacing the igniter
If the previous steps didn’t resolve the issue, it may be necessary to replace the igniter. A faulty igniter can prevent the gas valve from opening, leading to Error Code 12.
Testing gas valve resistance
Check the resistance of the gas valve using a multimeter. If the resistance is out of range, it may indicate a faulty gas valve that needs to be replaced.
Checking DC voltage
Finally, check the DC voltage to ensure it is within the specified range. A deviation from the recommended voltage can cause Error Code 12. If the voltage is incorrect, consult the manufacturer’s documentation for further troubleshooting steps.
By following these troubleshooting steps, you can resolve Rheem Error Code 12 and restore the functionality of your water heater. If the issue persists after completing these steps, it is recommended to contact a professional technician for further assistance.
Fixes For Rheem Error Code 12
If you are experiencing an error code 12 on your Rheem water heater, it can be frustrating and inconvenient. However, there are several possible fixes that you can try before calling a professional technician. In this section, we will explore some common fixes for Rheem Error Code 12 and guide you through the steps to resolve the issue.
Possible fixes for error code 12
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Unplugging the unit
One of the first troubleshooting steps to take when encountering an error code 12 is to unplug the unit from the power source. This can help reset the system and clear any temporary glitches that may be causing the issue. Leave the unit unplugged for about 5 minutes before plugging it back in.
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Removing and inspecting the igniter assembly
The next step involves removing and inspecting the igniter assembly. This component is responsible for igniting the gas burner. Inspect the igniter for any damage or signs of wear. If the igniter appears damaged, it may need to be replaced.
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Reassembling and reinstalling the igniter and flame rods
After inspecting the igniter, reassemble and reinstall it along with the flame rods. Make sure the connections are secure and properly aligned. Improper alignment or loose connections can trigger error code 12.
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Removing the burner plate
In some cases, error code 12 may be caused by a buildup of debris or dirt on the burner plate. To address this issue, remove the burner plate and clean it thoroughly. Use a soft brush or cloth to remove any debris. After cleaning, reattach the burner plate securely.
Other potential fixes for error code 12
In addition to the above fixes, there are a few other potential solutions you can try if you are still experiencing error code 12:
- Check the gas supply: Ensure that your unit is receiving an adequate supply of gas. If the gas supply is low or interrupted, it can trigger error code 12.
- Inspect the vent system: A blocked or restricted vent system can also cause error code 12. Check for any obstructions or damage in the venting system and address accordingly.
- Reset the unit: If none of the above fixes work, you can try resetting the unit to its factory settings. Refer to the manufacturer’s manual for instructions on how to perform a factory reset.
By following these steps and trying the suggested fixes, you may be able to resolve Rheem Error Code 12 on your water heater. However, if the problem persists or if you are unsure about any of the troubleshooting steps, it is recommended to contact a qualified technician for further assistance.
Frequently Asked Questions Of Rheem Error Code 12
What Is Error Code 12 On Rheem Gas Heater?
Error code 12 on a Rheem gas heater indicates a flame failure. Possible causes include a dirty flame sensor and a malfunctioning gas control valve. It is recommended to clean or replace the flame sensor and check the gas control valve for any issues.
If the problem persists, it is advisable to consult a professional for further assistance.
What Is Error Code 12 On Rheem Integrity?
Error code 12 on Rheem Integrity indicates a flame failure. Check the sight glass window for spark and perform external spark and gas valve resistance tests. Inspect the igniter assembly, flame rods, and burner plate for any issues. Reinstall components if necessary.
What Is A Code 12 On A Tankless Water Heater?
Code 12 on a tankless water heater indicates a flame failure. It could be due to dirty flame sensor or a malfunctioning gas control valve. Consult a professional plumber for troubleshooting and repairs.
Conclusion
To resolve the Rheem Error Code 12, follow the troubleshooting steps provided in this blog post. Ensure you unplug the unit, inspect the igniter assembly, and check the flame sensor for dirt or debris. Reinstall all components properly and test the unit.
These steps should help you resolve the Error Code 12 and restore the functionality of your Rheem water heater. If you continue to experience issues, it is recommended to contact a professional technician for further assistance.
