What does 224 mean?

The fan (blower) within the boiler is running at a speed that is too high, which can affect combustion and exhaust. This is an interlocking fault.

• Faulty fan wiring or plug connections
• Defective fan component

Click steps to track your progress.

1. 1

   Check the fan wiring and plug connections for any loose contacts or damage.

2. 2

   Inspect the fan for any dirt or blockages that might cause it to overcompensate.

3. 3

   If the fan is defective, it may need to be replaced by a qualified technician.