What does the Glow-worm Energy F44 fault code mean?
The F44 fault code on the Glow-worm Energy boiler indicates a domestic hot water (DHW) temperature fault. This typically means that the boiler is unable to achieve or maintain the desired temperature for hot water delivery.
Common Causes
- Faulty DHW Sensor: The sensor that monitors the temperature of the hot water may be malfunctioning, leading to incorrect readings.
- Blocked Heat Exchanger: A blockage in the heat exchanger can prevent efficient heat transfer, resulting in inadequate hot water temperature.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that require professional expertise to ensure safety and compliance with regulations.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F44 fault could be around £150 to £250, primarily depending on whether the DHW sensor needs replacement or if the heat exchanger requires cleaning or servicing.