Viessmann Error Code E8: The Viessmann Boiler’s Error Code E8 means that there is a problem with the burner. It is in a fault mode, which means it is not working properly. This error occurs when the flow rate for heating hot water is too low during calibration or when the flow switch causes the boiler to shut down. In simpler terms, the boiler is not getting enough water to heat up properly, which is causing it to malfunction. This can happen when there is a blockage or a problem with the flow switch. It is important to fix this issue as soon as possible to ensure the boiler works efficiently and provides hot water for heating.
Viessmann Boiler – Error Code E8
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Viessmann Boiler – Error Code E8
Is your Viessmann boiler showing up with Error Code E8 on the screen? In this article, we’ll look at why it is happening, some potential next steps for fixing error code E8 and whether you should keep using your Viessmann boiler.
What is a Viessmann Error Code E8?
The Viessmann Boiler’s Error Code E8 means that there is a problem with the burner. It is in a fault mode, which means it is not working properly. This error occurs when the flow rate for heating hot water is too low during calibration or when the flow switch causes the boiler to shut down. In simpler terms, the boiler is not getting enough water to heat up properly, which is causing it to malfunction. This can happen when there is a blockage or a problem with the flow switch. It is important to fix this issue as soon as possible to ensure the boiler works efficiently and provides hot water for heating.
Recommended solution/fix steps
When encountering the E8 error code on a Viessmann Boiler, which indicates a burner fault mode, follow these steps:
1. Check the flow rate of the heating hot water during calibration. Ensure that it is not too low, as this can trigger the error.
2. Inspect the flow switch, as it may be causing the shutdown. Look for any signs of damage or blockage that could be hindering its proper functioning.
3. If the flow switch appears to be faulty, consider replacing it with a new one to resolve the issue.
4. If the flow rate is consistently low, check for any obstructions or restrictions in the water supply line that may be causing the problem.
5. If none of the above steps resolve the issue, it is recommended to contact a professional technician or the manufacturer’s customer support for further assistance and troubleshooting.
Fault codes that are often associated with or mistaken for error code E8 are: E0, Ei, EZ, ES, EB, Eb, El, E5, E6, E1
Can I still use my Viessmann boiler?
After encountering Error Code E8 on a Viessmann Boiler, the machine may still be operable. This error indicates that the burner is in fault mode due to a low flow rate for heating hot water during calibration or a shutdown caused by the flow switch. While this error suggests a problem with the flow rate, it does not necessarily render the machine completely inoperable. It is advisable to check the flow rate and ensure it meets the required specifications. If the flow rate is indeed too low, adjustments can be made to rectify the issue and allow the machine to continue operating efficiently. However, if the problem persists or worsens, it is recommended to seek professional assistance to resolve the error and prevent further complications.
