Failures or defects caused by misuse. Your old part is in a repairable condition. Fans: Fan coils and motors failing due to boiler overheating will not be covered under warranty. Exclusions to warranty.
Great value pcb. Identified no ignition with the boiler due to fan not spinning. Fan blades nice and free to spin by hand. Checked for voltage at fan motor and at pcb, nothing. Ariston very helpful and advised 99% certain pcb fault. Changed the board, presto, all done.