Ferroli F67 Fault Code: Causes, Fixes & Repair Costs
What does the Ferroli F67 fault code mean?
The F67 code on a Ferroli boiler indicates that a Boiler Chip Card (BCC) service key is detected as connected to the PCB. In Ferroli's fault classification system, codes prefixed with 'F' are blocking faults — they may resolve on their own once the underlying condition is cleared, rather than requiring a manual reset like an 'A'-series lockout code. In practical terms, F67 is the boiler telling you that the BCC service key is present or being read; the closely related code F68 (or A68) takes this a step further and signals an actual error loading the BCC service key file. If you're seeing F67, the electronics have detected something connected to the board that is causing the boiler to pause. Note that code meanings can vary slightly between Ferroli model ranges including the Modena, Bluehelix, Optimax, and i-Series — always cross-reference with your specific model's manual if in doubt.
General guidance only — not a substitute for professional advice, and not certified by a Gas Safe engineer. Always have your specific appliance assessed by a qualified professional. Any gas work must be carried out by a Gas Safe registered engineer. If you smell gas or suspect carbon monoxide, leave the property and call the National Gas Emergency line on 0800 111 999.
Common causes
- BCC service key left connected to the PCB Common
The most direct trigger for F67 is a Boiler Chip Card service key that is physically attached to the PCB — either left in place after a previous engineer visit or inserted incorrectly. The boiler detects its presence and raises the blocking fault. Once removed by a qualified engineer, the fault should clear.
- Faulty or damaged PCB Sometimes
If no BCC service key is physically present but the F67 code persists, the PCB itself may be misreading its own inputs due to an internal fault, damaged circuitry, or a failed component on the board. A Gas Safe engineer can test the board electrically to confirm this.
- Wiring fault or damaged connector Sometimes
Loose, corroded, or damaged wiring between the BCC interface and the main PCB can cause the board to falsely detect a service key connection. A thorough visual inspection and continuity check by an engineer will identify any breaks or poor connections.
- BCC file loading error (related code F68/A68) Rare
Where the fault progresses to F68 or A68, the boiler has not only detected the BCC key but has encountered an error when attempting to read or load the configuration file from it. This points to a corrupted or incompatible chip card, or a deeper PCB communication failure.
How to fix it
- Check whether a BCC service key or any unfamiliar device is connected to the boiler DIY safe
Take a look at your boiler's PCB area if it is safely accessible without opening gas components. If you had an engineer visit recently, it is possible a BCC service key was left connected. Do not attempt to remove anything from the PCB yourself — this observation is just to inform your conversation with an engineer.
- Attempt a single boiler reset DIY safe
Locate the reset button on the front of your Ferroli boiler and hold it down for approximately 10 seconds. If the F67 condition was temporary, the code should disappear and the boiler should fire up normally. Avoid pressing the reset button repeatedly in quick succession, as this can cause additional issues. Limit resets to no more than two or three attempts.
- Check for the related F68 or A68 code DIY safe
If your display is showing F68 or A68 rather than — or in addition to — F67, make a note of this before calling an engineer. F68 indicates an error loading the BCC service key file, while A68 is the lockout version of the same fault. This detail will help the engineer diagnose the problem more quickly.
- Call a Gas Safe registered engineer to inspect the PCB and wiring Gas Safe engineer
If the reset does not clear the code, or if the fault returns, a Gas Safe engineer needs to attend. They will use a multimeter to check for breaks in the circuit, inspect wiring connections to the PCB, and determine whether the board itself needs repair or replacement. PCB work and any internal electronic component handling must only be carried out by a qualified professional.
Parts you may need
- Ferroli main PCB (control board) · from £180
- BCC Boiler Chip Card · from £45
- PCB wiring loom / connector harness · from £35
The exact spare depends on your boiler's GC number (on the data badge). Check this against the part before buying.
Typical repair cost
Expect to pay roughly £150–£350, depending on the underlying cause.
Frequently asked questions
Is the Ferroli F67 fault dangerous — will it stop my heating and hot water?
F67 is a blocking fault, meaning the boiler pauses operation while the condition is active, so yes, your heating and hot water will likely be interrupted until it is resolved. However, it is not a gas leak or combustion safety fault in itself — it is an electronics or chip card detection issue. That said, you should still get it looked at promptly rather than leaving the boiler locked in a fault state.
Can I fix the F67 fault myself, or do I need an engineer?
The only DIY step that is safe and sensible is attempting a boiler reset once or twice. All further diagnosis — checking the PCB, testing wiring, removing or replacing a BCC card, or fitting a new control board — must be carried out by a Gas Safe registered engineer. Working on the boiler's internal electronics without the correct qualifications is unsafe and could invalidate your boiler warranty or home insurance.
How much does it cost to fix a Ferroli F67 fault in the UK?
For most homeowners, the repair lands between £150 and £350 depending on what the engineer finds. If it is a straightforward wiring fix or a BCC card issue, costs tend to sit at the lower end. A full PCB replacement typically costs £200–£300 including parts and labour. Ferroli also offer their own out-of-warranty repair for around £335 including VAT, which covers labour, parts up to £250 in value, and a boiler service — worth considering if your boiler is still relatively young. If your boiler is over 10 years old and the PCB needs replacing, it may be worth getting a new boiler quote at the same time.
What is the difference between Ferroli fault codes F67 and F68 (or A68)?
F67 means the boiler has detected a BCC service key connected to the PCB. F68 goes one step further — it means the boiler found the key but then encountered an error trying to read or load the configuration file from it, suggesting a corrupted or incompatible card. A68 is the lockout version of F68, requiring a manual reset once the engineer has resolved the underlying problem. All three codes point to the same area of the boiler — the PCB and its BCC interface — so the diagnostic process for an engineer is broadly the same.