What does the Glow-worm Energy F41 fault code mean?
The F41 fault code indicates a fault with the central heating (CH) sensor in the Glow-worm Energy boiler. This sensor is responsible for monitoring the temperature of the water in the heating system, and a fault may prevent the boiler from operating correctly.
Common Causes
- Faulty CH Sensor: The sensor may be defective or damaged, leading to incorrect temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality and cause the fault code to appear.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair the issue, as working with gas appliances can be dangerous. Attempting to fix electrical or gas-related issues without proper training can lead to safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for fixing the F41 fault code is around £150 to £250. This includes the cost of a replacement CH sensor and labour, as it typically requires professional installation to ensure safety and compliance with regulations.