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 usually in the control module (PCB) or other printed circuit board. I don’t know why the suggested action is to check connections if the fault is that the triac has shorted. This error is likely to need an engineer and maybe a replacement pcb but a determined DIYer may decide to check all connections as suggested. Electrical components shorting out (if that is indeed what’s happened) very often 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