What does the Worcester Bosch Greenstar i F46 fault code mean?
The F46 fault code indicates a problem with the condensate trap in the Worcester Bosch Greenstar i boiler. This typically means that the trap is either blocked or malfunctioning, preventing proper drainage of condensate water.
Common Causes
- Blockage in the condensate trap: This can occur due to debris or sludge accumulation, which prevents the flow of condensate.
- Faulty condensate trap: The trap itself may be damaged or defective, leading to improper functioning.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer to address this issue, as working on gas appliances can be dangerous. Attempting to fix the condensate trap without proper training may lead to further complications.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the condensate trap is around £150 to £200. This includes the cost of the part and labour, reflecting the complexity of the job and the need for a qualified engineer.