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If you own a Noritz tankless water heater and are encountering error code 78, there are a few troubleshooting steps you can follow to resolve the issue and get your water heater working efficiently again. Code 78 typically indicates a flame detection abnormality, and it is crucial to address this problem promptly to avoid any potential safety hazards.
Start by ensuring that the gas supply to your water heater is not interrupted. Check if the gas valve is fully open and there are no obstructions or leaks in the gas lines. If you suspect a gas leak, contact a professional immediately as this can be hazardous.
The igniter and flame rod are vital components of the Noritz water heater. Inspect the igniter for any signs of corrosion or damage. Clean it gently using a soft cloth if necessary. Similarly, clean the flame rod with a soft brush to remove any dirt or debris that might be affecting its functionality.
Next, inspect the venting system of your tankless water heater. Ensure that the vent termination is clear from any obstructions, such as debris or nests. Make sure the venting pipes are properly connected and not damaged. Proper ventilation is crucial for the safe operation of the unit.
Attempt to reset the system by turning off the power supply to the water heater. Locate the main power switch or breaker connected to your water heater and turn it off for a minute. Then, turn it back on and observe if the error code 78 persists. Resetting the system can sometimes clear any temporary glitches.
If none of the above steps resolves the error code 78, it is recommended to seek professional assistance. Contact a certified Noritz technician who can accurately diagnose and repair the issue. They have the necessary expertise and tools to ensure your water heater is in optimal condition and operating safely.
Remember, troubleshooting steps may vary depending on the specific model of your Noritz tankless water heater. Always refer to the manufacturer's manual for detailed instructions and safety guidelines.
By following these troubleshooting steps and seeking professional help when needed, you can address error code 78 on your Noritz tankless water heater and ensure its efficient and safe operation.
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