What does the Glow-worm Betacom F83 fault code mean?
The F83 fault code indicates a problem with the domestic hot water (DHW) flow temperature sensor in the Glow-worm Betacom boiler. This sensor is responsible for monitoring the temperature of the water being heated for domestic use, and a fault may prevent the boiler from functioning correctly.
Common Causes
- Faulty Temperature Sensor: The sensor may be defective or damaged, leading to incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and safety risks. Attempting to fix it yourself may void any warranties and could be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the DHW flow temperature sensor is around £150 to £200. This includes the cost of the part and labour, as sensor replacement typically requires professional expertise.