We've had this washing machine for 15 years and apart from the door seal and motor brushes, it has always worked perfectly. Lately it started behaving erratically.
During the rinse cycle when it usually tries to balance the load, it revs up very quickly for 1 or 2 seconds and then stops revving altogether. This "cycle" repeated every 30 seconds and needless to say, the rinsing was not completing properly. That is issue one.
Issue two: We usually used the max 1000rpm speed during winter and 800 during summer. The spin cycle revved up and then down for a second or two and then up again. This continued until the spin cycle ended and sometimes we had to use the Spin program by itself to get the clothes a bit drier.
Issue three: This morning after two loads we put some coloured clothes - a fleecy pyjamas trousers and top, a corduroy jeans and a few small undergarments. After the machine had taken water in the drum spun at a very high speed for 1 or 2 seconds and the loudest of bangs was heard. The machine stopped and repeated this high speed drum revving after 30 seconds with the same banging.
I thought the drum's spider had broken but after emptying the drum, this turned quite smoothly by hand. I also tested for up/down play but there is only a minimal 1-2mm of play. I then tried to do a Rinse program with an empty drum (just the water it had taken in previously) and the same instant high speed revving happened and although the drum did not bang, the machine did shake. This model does not allow replacement of shock absorbers without splitting the tub.
My question is: can the load balancer or its software go haywire? Can the machine's programs be given a hard reset using some secret button-pressing combination? The link is for the video I took with the back plate removed https://www.youtube.com/watch?v=hdYjorOWIYg&feature=youtu.be
I apologise for the length and wish to thank anyone who can give me some information. Thanks.