Re: hotpoint wma40
Possibly time for an engineer, check the link in my sig to see if we have someone who can help. There are certain test procedures that he/she can use to try to identify the problem. It sounds as though it may be the control module that is at fault, however it rather expensive to change without first eliminating all other possible causes such as the door lock itself.
Advisable to change the door lock in any event as these do have a habit of damaging the control module.
Please remove the mains plug if you intend to go inside. 😉