What does the Glow-worm Flexicom F93 fault code mean?
The F93 fault code on a Glow-worm Flexicom boiler indicates that the system has detected a fault that requires attention, often related to the heating system’s pressure or a component malfunction. This alert is a safety feature to prevent further damage or unsafe operation.
Common Causes
- Low Water Pressure: Insufficient water pressure in the system can trigger the F93 fault code, often due to leaks or insufficient filling.
- Faulty Sensors: Malfunctioning sensors that monitor system performance may incorrectly signal a fault, leading to the F93 alert.
Can I fix it myself? (DIY)
If the issue is related to low water pressure, you can attempt to repressurize the system by following the manufacturer’s instructions. However, for any gas or electrical issues, it is crucial to call a qualified Gas Safe Engineer to ensure safety and compliance with regulations.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F93 fault could range from £100 to £250, depending on whether it involves repressurizing the system or replacing faulty sensors. This estimate reflects the cost of labour and parts required for a typical repair.