What does the Glow-worm Betacom F97 fault code mean?
The F97 fault code on the Glow-worm Betacom indicates a domestic hot water (DHW) outlet pressure fault. This typically means that the boiler is unable to maintain the required pressure for hot water delivery, which can affect performance and efficiency.
Common Causes
- Blocked DHW Heat Exchanger: A blockage in the heat exchanger can restrict water flow, leading to pressure issues.
- Faulty Pressure Sensor: A malfunctioning pressure sensor may incorrectly report the outlet pressure, triggering the fault code.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that require professional handling. Attempting DIY repairs could be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F97 fault could be around £150 to £250, depending on whether a heat exchanger cleaning or a pressure sensor replacement is needed. This estimate reflects the cost of parts and labour for a qualified engineer.