What does the Glow-worm Betacom F95 fault code mean?
The F95 fault code indicates a domestic hot water (DHW) return pressure fault in the Glow-worm Betacom boiler. This typically means that the pressure in the return line is either too low or not reaching the expected levels, which can affect the boiler’s ability to provide hot water efficiently.
Common Causes
- Low System Pressure: Insufficient water pressure in the heating system can lead to this fault, often caused by leaks or insufficient water filling.
- Faulty Pressure Sensor: A malfunctioning pressure sensor may incorrectly report the return pressure, triggering the F95 fault code.
Can I fix it myself? (DIY)
If you are comfortable with basic plumbing, you can check the system pressure and top it up if it’s low. However, if the issue persists or if you suspect a faulty sensor, it is strongly advised to call a Gas Safe Engineer for further diagnosis and repair.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F95 fault could range from £150 to £300, depending on whether the issue is simply a pressure adjustment or if a pressure sensor replacement is necessary, which can be more costly due to parts and labour.