Sometimes it shows a faulty time and the whole washing process is affected. The selector knobs becomes loose and sometimes may even break due to hard operation. The timer is connected to electronic wires and damages in the wire may result in the depiction of the wrong time. Splashing of the water also results in the non-working timer. The breakage of the wires inside the washing machines also produce the same result.
The above list is not exhaustive, but it's a great starting point. Washing machine repair is by no means a simple task, but it becomes a lot more manageable for the average homeowner when you're at least somewhat familiar with the parts that you're looking at. Take a minute to look over the owner's manual that you received when you purchased your current unit; there should be a complete diagram with all of the parts labeled. If you misplaced the manual or can't locate a helpful diagram, there are countless online resources that can help you with your DIY repair by allowing you to look up your exact model specifications and helping you identify exactly which parts may be at the root of your washer's malfunction.