F01 error code on most Hotpoint washing machines means “motor triac short – check motor and module connections”. This isn’t the type of error code helpful to most people so you may well be better getting an engineer in to look at it.
The triac is an electronic component in the control module (PCB) or other printed circuit board. The suggested action of also checking connections shows that it isn’t necessarily a triac short. Clearly there’s an issue with it but it could have shorted out or have a conneciton fault somewhere.
This error is likely to need an appliance engineer and maybe a replacement pcb, but a determined DIYer may decide to check all connections as suggested. Check the motor for continuity and carefully check the connections on the motor connector and where those wires connect to the main PCB. Electrical components shorting out (if that is what’s happened) could have external causes such as low insulation on another component, which also need diagnosing.
A company called QER may be able to repair the pcb or at least test it if you are prepared to have a go at fixing it yourself QER Module / pcb repairs – non trade
Appliance repairs – Book washing machine (or other appliance) repair