Are you facing code 12 on your Rheem tankless water heater? Don’t worry, we’ve got you covered. This error code indicates a flame failure and can leave you without hot water. But what causes this error, and how can you fix it? Let’s dive into the troubleshooting steps and find the solution.
- Code 12 on a Rheem tankless water heater indicates a flame failure.
- Possible causes include a dirty or defective flame sensor, improper gas supply, insufficient gas pressure, small gas lines, or clogged venting.
- To resolve the issue, check and clean the flame sensor, ensure the gas supply is not blocked, adjust the gas pressure if needed, confirm the gas lines are sized correctly, and inspect the venting for any blockages.
- If you’re unsure or uncomfortable troubleshooting the issue yourself, it’s best to contact a professional water heater technician for assistance.
- Ignoring error codes or attempting DIY repairs can lead to further damage and potential personal injury.
Common Rheem Tankless Water Heater Error Codes
Rheem tankless water heaters are equipped with a comprehensive error code system to assist in troubleshooting specific problems or malfunctions. Understanding these error codes can help you identify the issue and potentially resolve it yourself or provide valuable information to a professional technician. Below are some of the common Rheem error codes and their meanings:
Code 00: Power Interruption or Supply Problem
This code indicates a power interruption or supply problem. It could be due to a tripped circuit breaker, a blown fuse, or issues with the electrical connection.
Code 11: Ignition or Ignition Sensor Issues
This code indicates problems with the ignition system or the ignition sensor. It may be caused by a faulty ignitor, a dirty sensor, or a malfunctioning control board.
Code 13: Gas Supply or Gas Valve Problems
This code points to issues with the gas supply or the gas valve. It can be caused by a closed gas valve, insufficient gas pressure, or a blocked gas line.
Code 14: Thermal Fuse Issues
This code indicates problems with the thermal fuse. It typically occurs when the fuse is blown or when there is an overheating issue.
Code 15: Inlet Water Temperature Sensor Problems
This code points to problems with the inlet water temperature sensor. It may indicate a faulty sensor or issues with the sensor’s connection.
Code 16: Outlet Water Temperature Sensor Problems
This code indicates issues with the outlet water temperature sensor. It may be caused by a defective sensor or poor sensor connection.
Code 21: Overheat Sensor Issues
This code points to problems with the overheat sensor. It typically occurs when the sensor detects excessive heat and triggers a shutdown to prevent damage.
Code 24: Flow Sensor Problems
This code indicates issues with the flow sensor. It may occur due to a faulty sensor, low water flow, or a blockage in the water system.
Code 29: Neutralizer Issues
This code points to problems with the neutralizer. It typically occurs when the neutralizer needs cleaning or replacement.
Code 31: Inlet Water Filter Problems
This code indicates issues with the inlet water filter. It may occur when the filter is clogged, restricting water flow to the unit.
Code 32: Heat Exchanger Issues
This code points to problems with the heat exchanger. It may be caused by a clogged exchanger, a cracked exchanger, or other issues affecting its performance.
Code 33: Combustion Air Supply Problems
This code indicates issues with the combustion air supply. It may occur when there is insufficient air for proper combustion or when the air intake is blocked.
Code 35: Fan Motor Problems
This code points to problems with the fan motor. It may be caused by a malfunctioning motor, a blocked fan, or issues with the motor’s electrical connections.
Code 51: Gas Valve or Wiring Connection Issues
This code indicates problems with the gas valve or the wiring connections related to the valve. It may be due to a faulty valve, loose wiring, or damaged connections.
Code 61: Fan Motor or Wiring Connection Problems
This code points to problems with the fan motor or the associated wiring connections. It may occur when the motor is not functioning correctly or when the wiring has issues.
Code 70: Communication Issues between Control Board and Remote Control
This code indicates communication problems between the control board and the remote control. It may occur due to a faulty control board, a malfunctioning remote control, or issues with their connection.
Code 71: Communication Issues between Control Board and Water Flow Control Valve
This code points to communication problems between the control board and the water flow control valve. It may occur due to a faulty control board, a malfunctioning valve, or issues with their connection.
Code 72: Communication Issues between Control Board and Remote Control
This code indicates communication problems between the control board and the remote control. It may occur due to a faulty control board, a malfunctioning remote control, or issues with their connection.
If you encounter any error codes on your Rheem tankless water heater, it is essential to take note of the specific code and contact a professional water heater technician to properly diagnose and repair the unit. Their expertise and knowledge will ensure accurate troubleshooting and efficient resolution of the error code, restoring your tankless water heater’s optimal performance.
Conclusion
Troubleshooting and resolving error codes on Rheem tankless water heaters can be a challenging task that requires expert knowledge and experience. That’s why it’s crucial to rely on the expertise of a professional water heater technician who specializes in tankless water heaters. These professionals have the necessary skills, tools, and training to effectively diagnose and repair your Rheem tankless water heater.
Attempting to fix the error codes yourself or ignoring them can lead to further damage to your unit and potentially put your safety at risk. A qualified service provider can ensure that your tankless water heater is safely and appropriately repaired, ensuring the continuous flow of hot water in your home.
By reaching out to a professional for Rheem tankless water heater troubleshooting and repair, you can have peace of mind knowing that your unit will be handled with care and precision. Don’t take any chances – prioritize your safety and the longevity of your water heater by entrusting the professionals with your error code resolution needs.
FAQ
How do I fix code 12 on my Rheem tankless water heater?
Code 12 on a Rheem tankless water heater indicates a flame failure. To resolve this error, you can try several troubleshooting steps. First, check and clean the flame sensor, as a dirty sensor can cause the flame to go undetected. Ensure that the gas supply is not blocked and that the gas valve is open. Check the gas hose for any clogs or kinks and make sure there is enough gas in the tank. Adjust the gas pressure if it is insufficient based on the recommended range for your fuel type. Additionally, ensure that the gas lines are properly sized to support the BTU load of your water heater. Finally, inspect the venting for any blockages or clogs that may be obstructing airflow. By following these steps, you can resolve the code 12 error and restore your Rheem tankless water heater’s functionality.
What are some common Rheem tankless water heater error codes?
Rheem tankless water heaters can display various error codes to indicate specific problems or malfunctions. Some common Rheem error codes include code 00, indicating a power interruption or supply problem; code 11 for ignition or ignition sensor issues; code 13 for gas supply or gas valve problems; code 14 for thermal fuse issues; code 15 for inlet water temperature sensor problems; code 16 for outlet water temperature sensor problems; code 21 for overheat sensor issues; code 24 for flow sensor problems; code 29 for neutralizer issues; code 31 for inlet water filter problems; code 32 for heat exchanger issues; code 33 for combustion air supply problems; code 35 for fan motor problems; code 51 for gas valve or wiring connection issues; code 61 for fan motor or wiring connection problems; code 70 for communication issues between the control board and remote control; code 71 for communication issues between the control board and water flow control valve, and code 72 for communication issues between the control board and remote control. If you encounter any error codes on your Rheem tankless water heater, it is best to contact a professional water heater technician for proper diagnosis and repair.
Should I attempt to troubleshoot and repair error codes on my Rheem tankless water heater myself?
Troubleshooting and resolving error codes on Rheem tankless water heaters can be tricky and potentially dangerous if not done correctly. It is always recommended to seek the assistance of a professional water heater technician who specializes in tankless water heaters. These technicians have the necessary expertise, tools, and training to properly diagnose and repair your Rheem tankless water heater. Ignoring error codes or attempting DIY repairs can lead to further damage to the unit and even potential personal injury. By contacting a qualified service provider, you can ensure that your tankless water heater is safely and effectively repaired, keeping your hot water flowing without any issues.
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