Troubleshooting and Fixing Fault Code F97 "Main PCB Self-Test Failed Fault"
on your Glow-Worm EasiCom Boiler
The main PCB (Printed Circuit Board) is a critical component of your boiler, responsible for controlling its various functions. If you encounter an F97 fault code on your Glow-Worm EasiCom Boiler, it indicates a problem with the main PCB self-test. In this blog post, we will explore the details of this fault, identify warning signs, provide troubleshooting tips, and guide homeowners and engineers on how to effectively resolve the issue.
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Understanding the Main PCB Self-Test Failed Fault
The F97 fault code on the Glow-Worm EasiCom Boiler indicates a failure in the self-test of the main PCB. The self-test is a diagnostic procedure performed by the boiler’s control system to ensure the proper functioning of the main PCB. When the self-test fails, the boiler triggers the F97 fault code as a safety measure.
F97 Red Flags!
If you suspect an F97 fault on your Glow-Worm EasiCom Boiler, watch out for the following warning signs:
- Displayed error code: The boiler’s display shows the F97 fault code or an associated error message.
- Boiler not functioning: The boiler fails to operate, with no heating or hot water being produced.
- No response to controls: The boiler does not respond when you adjust the temperature or perform other control functions.
- Inconsistent display: The display may flicker, show random characters, or be unresponsive.
Check out what your allowed to do:
Homeowners – What you can do as a homeowner?
Qualified Gas Engineers – Troubleshooting Tips, And What to Do as a Qualified Gas Engineer?
Troubleshooting Tips:
If you encounter an F97 fault on your Glow-Worm EasiCom Boiler, try the following troubleshooting tips before seeking professional assistance:
- Power cycle the boiler: Turn off the boiler using the power switch or circuit breaker, wait for a few seconds, and then turn it back on. This can help reset the system and clear any temporary issues.
- Check power supply: Ensure that the boiler is receiving power. Check the circuit breaker or fuse connected to the boiler to make sure it is functioning correctly.
- Inspect wiring connections: Verify the wiring connections to the main PCB. Ensure they are securely connected and undamaged. Tighten any loose connections if found.
- Reset the main PCB: Some models have a reset button or procedure for the main PCB. Refer to the manufacturer’s instructions or contact Glow-Worm’s customer support to determine if this applies to your boiler model.
- Contact customer support or a qualified engineer: If the issue persists or you are unsure about any troubleshooting steps, reach out to Glow-Worm’s customer support or a qualified engineer for further guidance. They can provide assistance over the phone or via email and may have additional troubleshooting steps specific to your boiler model and the F97 fault.
What can you do as a Homeowner?
As a homeowner, you can take the following steps to address the F97 fault on your Glow-Worm EasiCom Boiler:
- Perform basic troubleshooting: Follow the troubleshooting tips mentioned above to see if you can resolve the issue independently. Power cycle the boiler, check the power supply, inspect wiring connections, reset the main PCB (if applicable), and contact customer support or a qualified engineer for assistance.
- Reset the boiler: Reset the boiler if possible. Do this by turning the boiler off for around 1-2 minutes and then turn it back on again and hopefully this has got rid of the error code for you.
- Schedule a service visit: If the issue persists or you are unable to resolve it on your own, consider scheduling a service visit with a qualified engineer. They can diagnose the problem accurately and implement the necessary repairs or replacements of the main PCB or associated components.
- Check warranty coverage: Review your warranty documentation or contact Glow-Worm customer support to determine if the F97 fault is covered. If it is covered, the manufacturer may arrange for a technician to address the issue at no cost to you.
- Regular maintenance: After resolving the F97 fault, consider scheduling regular maintenance for your boiler. Routine servicing helps prevent future issues and ensures the optimal performance of your heating system.
What to do as a Qualified Gas Engineer?
As an engineer, follow these steps to diagnose and resolve the F97 fault on the Glow-Worm EasiCom Boiler:
- Check power supply: Verify that the boiler is receiving a stable power supply. Test the circuit breaker, fuse, or any relevant electrical connections to ensure they are functioning correctly.
- Inspect wiring connections: Examine the wiring connections related to the main PCB. Ensure they are securely connected and undamaged. Repair or replace any damaged or faulty wiring.
- Test the main PCB: Perform a thorough diagnostic test of the main PCB using appropriate tools and equipment. Check for any faulty components or circuitry. If the main PCB is found to be defective, it will likely need to be replaced.
- Reset or update the software: If applicable, reset the main PCB to clear any temporary errors. Additionally, check if there are any available software updates for the boiler’s control system and perform the update if necessary.
- System evaluation and testing: Conduct a comprehensive evaluation of the boiler to ensure there are no additional issues affecting the main PCB or overall performance. Test the boiler’s operation, including controls and display functionality, to confirm proper functioning.
- Replace any faulty parts: As the engineer, if you have come across any faulty parts within the boiler, make sure to replace them correctly and if necessary. If you need are unsure on how to replace any parts, check out our video here.
Conclusion
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More help & advice:
Take a look at more error/ fault codes for a GlowWorm EasiCom boiler.
If you would like some further help. Please don’t hesitate to contact one of our dedicated staff members, they will give you the best advice they possibly can to help.
