What does the Glow-worm Flexicom F62 fault code mean?
The F62 fault code on the Glow-worm Flexicom indicates a problem with the low water cut-off system, which is designed to prevent the boiler from operating when the water level is too low. This safety feature helps protect the boiler from damage due to overheating.
Common Causes
- Low Water Pressure: Insufficient water pressure in the system can trigger the low water cut-off, preventing the boiler from functioning.
- Faulty Pressure Sensor: A malfunctioning pressure sensor may incorrectly signal that the water level is low, leading to the F62 fault code.
Can I fix it myself? (DIY)
If you are comfortable with basic maintenance, check the boiler’s pressure gauge and ensure it is within the recommended range (typically 1-1.5 bar). If the pressure is low, you can top it up using the filling loop. However, for any gas or electrical issues, it is crucial to call a qualified Gas Safe Engineer.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F62 fault could be around £150 to £250, depending on whether the issue is simply a pressure adjustment or if a new pressure sensor needs to be installed. This cost reflects the price of parts and labour for a qualified technician.