Glow-worm Boiler Problems

Glow-worm boilers are known for their efficiency and reliability, but like any heating system, they can encounter issues. In this article, we’ll explore common problems discussed on a forum related to Glow-worm boilers and potential solutions.

Intermittent Faults with Glow-worm 18hxi Boiler

Understanding the Issue

One forum member seeks assistance with an intermittent fault on their Glow-worm 18hxi boiler, which is six years old. The boiler displays error codes F1 or F4, causing it to cut out. The problem occurs sporadically, making it challenging to diagnose.

Servicing and Initial Checks

The user mentions that the boiler receives regular servicing, and the service technician has already checked several potential causes. They include renewing burner door seals, inspecting the condensate drain, adjusting gas pressure, and ensuring the flue is clear. However, none of these actions have resolved the issue.

Potential Culprits

Forum members chime in with suggestions, and some suspect the ignition system, specifically the ignition electrode or igniter unit. The F1 and F4 error codes point to ignition and flame failure issues.

Assessing the Gas Valve and PCB

Another possible culprit is the gas valve or the printed circuit board (PCB). Intermittent problems can often be traced back to faulty components, and both the gas valve and PCB are essential for proper boiler operation.

Seeking Professional Assistance

Contacting Glow-worm

Based on the forum’s advice, the original poster contacts Glow-worm for technical support. They speak to a helpful representative who advises them that solutions can only be discussed with a Gas Safe registered engineer.

Professional Boiler Engineer Recommended

Given the complexity of the issue and the user’s efforts to address it, forum members recommend involving a Glow-worm engineer. These experts possess in-depth knowledge of Glow-worm boilers and can efficiently diagnose and rectify problems.

Evaluating Fault Codes

The F1 and F4 error codes suggest that the fault is related to ignition and flame failure. However, intermittent faults can be challenging to pinpoint, and there’s a possibility of a gas valve issue or electronics malfunction.

Other Boiler-Related Discussions

Additional Boiler Noise

In a related discussion, a forum member mentions experiencing a rumbling or booming noise from their Glow-worm 30 cxi boiler. While some suggest it could be kettling, others point out that the fault codes do not match this issue.

Taking Action

Consulting Glow-worm Support

The user contacts Glow-worm technical support and receives advice regarding adjusting settings, such as gas pressure and carbon monoxide levels, to optimal values. However, this seems to trigger more frequent faults.

Considering Replacement

Frustrated by the ongoing issues, the user contemplates replacing the boiler with a new model. They consider options like the Ideal Logic boiler, which comes with a five-year warranty.

Seeking Resolution

Future Updates

The user plans to communicate with their boiler specialist to understand what adjustments were made based on Glow-worm’s advice. They intend to share any findings that may help others facing similar problems.

Meter Inspection

To rule out external factors, the user arranges for a National Grid technician to inspect the gas meter and regulator. The technician confirms that there are no issues with gas quality or pressure.

Conclusion

Intermittent boiler faults can be frustrating and challenging to diagnose. In this forum discussion, Glow-worm boiler owners share their experiences and seek solutions. While some potential culprits are identified, such as the gas valve, PCB, or ignition system, resolving the issue may require the expertise of a Glow-worm engineer. In complex cases like these, professional assistance is often the most effective path to a solution.

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