What does the Glow-worm Flexicom F58 fault code mean?
The F58 fault code on a Glow-worm Flexicom boiler indicates a malfunction with the cold water sensor. This sensor is crucial for monitoring the temperature of the incoming cold water, and its failure can lead to improper boiler operation.
Common Causes
- Faulty Sensor: The cold water sensor may be defective or damaged, leading to inaccurate readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality and cause the fault code to appear.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to address this issue, as it involves gas and electrical components that require professional handling for safety reasons.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for fixing the F58 fault code is around £150 to £250. This includes the cost of replacing the cold water sensor and any necessary labour charges.