What does the Glow-worm Betacom F93 fault code mean?
The F93 fault code on a Glow-worm Betacom boiler indicates a fault with the domestic hot water (DHW) pressure sensor. This issue can prevent the boiler from properly regulating water pressure, affecting hot water delivery.
Common Causes
- Blocked Pressure Sensor: Debris or scale buildup can obstruct the sensor, leading to inaccurate readings.
- Wiring Issues: Damaged or loose wiring connections to the pressure sensor can cause communication failures.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that can be hazardous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for the F93 fault code is around £150 to £200, which includes the replacement of the pressure sensor and labour. This cost reflects the specific part required and the expertise needed for safe installation.